0
Your cart

Your cart is empty

Price
  • R50 - R100 (8)
  • R100 - R250 (466)
  • R250 - R500 (1,862)
  • R500+ (8,391)
  • -
Status
Format
Author / Contributor
Publisher

Books > Science & Mathematics > Astronomy, space & time

Cosmic Perspectives in Space Physics (Hardcover, 1999 ed.): S. Biswas Cosmic Perspectives in Space Physics (Hardcover, 1999 ed.)
S. Biswas
R5,232 Discovery Miles 52 320 Ships in 18 - 22 working days

In the early years of the twentieth century, Victor Hess of Germany flew instruments in balloons and so discovered in 1912 that an extra- errestial radiation of unknown origin is incident on the earth with an almost constant intensity at all times. These penetrating non solar radiations which were called Cosmic Rays by Millikan, USA, opened the new frontier of space physics and many leading scientists were attracted to it. At the end of World War II a number of space vehicles, e.g. stratospheric balloons, rockets and satellites were developed. In 1950 and onwards, these vehicles enabled spectacular advances in space physics and space astrophysics. New horizons were opened in the explorations of cosmic rays, the earth's magnetosphere, the Sun and the heliosphere, the moon and the planets. Using space-borne instruments, exciting discoveries were made of stars, and galaxies in the infra-red, ultra violet, x-ray and gamma-ray wavelengths. In this text book these fascinating new findings are presented in depth and on a level suitable for senior undergraduate and graduate students, research scientists and scientists of other disciplines. Although there are several excellent books and monographs on different aspects, most of these deal with specific areas. In this text book the findings of space physics and astrophysics are presented in an integrated manner with proper introductions to the fundamental aspects, and these are supplemented by relevant ground based observations."

Space Fostering Latin American Societies - Developing the Latin American Continent Through Space, Part 3 (Hardcover, 1st ed.... Space Fostering Latin American Societies - Developing the Latin American Continent Through Space, Part 3 (Hardcover, 1st ed. 2022)
Annette Froehlich
R3,654 Discovery Miles 36 540 Ships in 10 - 15 working days

This peer-reviewed book presents a comprehensive overview of the role space is playing in enabling Latin America to fulfill its developmental aspirations. Following on from the highly acclaimed Part 1 and Part 2, it explains how space and its applications can be used to support the development of the full range and diversity of Latin America societies, while being driven by Latin American goals. The Latin American space sector is currently undergoing a phase of rapid and dynamic expansion, with new actors entering the field and with space applications increasingly being used to support the continent's social, economic, and political development. All across Latin America, attention is shifting to space as a fundamental part of the continental development agenda, and the creation of a Latin American space agency is evidence of this. Additionally, while in recent years, significant advances in economic and social development have lifted many of Latin America's people out of poverty, there is still much that needs to be done to fulfill the basic needs of the population and to afford them the dignity they deserve. To this end, space is already being employed in diverse fields of human endeavor to serve Latin America's goals for its future, but there is still a need for further incorporation of space systems and data. This book will appeal to researchers, professionals and students in fields such as space studies, international relations, governance, and social and rural development.

Exploring the History of Southeast Asian Astronomy - A Review of Current Projects and Future Prospects and Possibilities... Exploring the History of Southeast Asian Astronomy - A Review of Current Projects and Future Prospects and Possibilities (Hardcover, 1st ed. 2021)
Wayne Orchiston, Mayank N. Vahia
R3,731 Discovery Miles 37 310 Ships in 10 - 15 working days

This edited volume contains 24 different research papers by members of the History and Heritage Working Group of the Southeast Asian Astronomy Network. The chapters were prepared by astronomers from Australia, France, Germany, India, Indonesia, Japan, Malaysia, the Philippines, Scotland, Sweden, Thailand and Vietnam. They represent the latest understanding of cultural and scientific interchange in the region over time, from ethnoastronomy to archaeoastronomy and more. Gathering together researchers from various locales, this volume enabled new connections to be made in service of building a more holistic vision of astronomical history in Southeast Asia, which boasts a proud and deep tradition.

Blackbody Radiometry - Volume 1: Fundamentals (Hardcover, 1st ed. 2020): Victor Sapritsky, Alexander Prokhorov Blackbody Radiometry - Volume 1: Fundamentals (Hardcover, 1st ed. 2020)
Victor Sapritsky, Alexander Prokhorov
R4,829 Discovery Miles 48 290 Ships in 18 - 22 working days

This book, the first of a two-volume set, focuses on the basic physical principles of blackbody radiometry and describes artificial sources of blackbody radiation, widely used as sources of optical radiation, whose energy characteristics can be calculated on the base of fundamental physical laws. Following a review of radiometric quantities, radiation laws, and radiative heat transfer, it introduces the basic principles of blackbody radiators design, details of their practical implementation, and methods of measuring their defining characteristics, as well as metrological aspects of blackbody-based measurements. Chapters are dedicated to the effective emissivity concept, methods of increasing effective emissivities, their measurement and modeling using the Monte Carlo method, techniques of blackbody radiators heating, cooling, isothermalization, and measuring their temperature. An extensive and comprehensive reference source, this book is of considerable value to students, researchers, and engineers involved in any aspect of blackbody radiometry.

Interstellar Flow and Star Formation (Hardcover): Enrique Vazquez-Semadeni Interstellar Flow and Star Formation (Hardcover)
Enrique Vazquez-Semadeni
R3,269 Discovery Miles 32 690 Ships in 10 - 15 working days
Dynamic Planet - Mercury in the Context of its Environment (Hardcover, 2007): Pamela Elizabeth Clark Dynamic Planet - Mercury in the Context of its Environment (Hardcover, 2007)
Pamela Elizabeth Clark
R4,026 Discovery Miles 40 260 Ships in 18 - 22 working days

This book views Mercury as a whole in the context of its environment. It illustrates what we know and what we need to know, and why understanding Mercury is so crucial to our understanding of solar system origin and current processes on Earth. The book describes our current state of knowledge for Mercury and interactions between interior, exterior, and space environment which are highly dynamic and thus critical to understanding Mercury as a system.

Scientific Cosmology and International Orders (Paperback): Bentley B. Allan Scientific Cosmology and International Orders (Paperback)
Bentley B. Allan
R1,146 Discovery Miles 11 460 Ships in 10 - 15 working days

Scientific Cosmology and International Orders shows how scientific ideas have transformed international politics since 1550. Allan argues that cosmological concepts arising from Western science made possible the shift from a sixteenth-century order premised upon divine providence to the present order centred on economic growth. As states and other international associations used scientific ideas to solve problems, they slowly reconfigured ideas about how the world works, humanity's place in the universe, and the meaning of progress. The book demonstrates the rise of scientific ideas across three cases: natural philosophy in balance of power politics, 1550-1815; geology and Darwinism in British colonial policy and international colonial orders, 1860-1950; and cybernetic-systems thinking and economics in the World Bank and American liberal order, 1945-2015. Together, the cases trace the emergence of economic growth as a central end of states from its origins in colonial doctrines of development and balance of power thinking about improvement.

High Time-Resolution Astrophysics (Hardcover): Tariq Shahbaz, Jorge Casares Velazquez, Teodoro Munoz Darias High Time-Resolution Astrophysics (Hardcover)
Tariq Shahbaz, Jorge Casares Velazquez, Teodoro Munoz Darias
R3,634 Discovery Miles 36 340 Ships in 10 - 15 working days

High time-resolution astrophysics (HTRA) involves measuring and studying astronomical phenomena on timescales of seconds to milliseconds. Although many areas of astronomy, such as X-ray astronomy and pulsar observations, have traditionally required high time-resolution studies, HTRA techniques are now being applied to optical, infrared and gamma-ray wavelength regimes, due to the development of high efficiency detectors and larger telescopes that can gather photons at a higher rate. With lectures from eminent scientists aimed at young researchers and postdoctorate students in observational astronomy and astrophysics, this volume gives a practical overview and introduction to the tools and techniques of HTRA. Just as multi-spectral observations of astrophysical phenomena are already yielding new scientific results, many astronomers are optimistic that exploring the time domain will open up an important new frontier in observational astronomy over the next decade.

The Sun and Photovoltaic Technologies (Hardcover, 1st ed. 2020): Tomislav Pavlovic The Sun and Photovoltaic Technologies (Hardcover, 1st ed. 2020)
Tomislav Pavlovic
R4,009 Discovery Miles 40 090 Ships in 10 - 15 working days

This book covers solar energy and the use of solar radiation in connection with lighting. It provides a detailed introduction to solar energy, photovoltaic (PV) solar energy conversion, and solar lighting technologies, while also discussing all of these elements in the context of the Balkan Peninsula. In the context of solar energy, the book covers a range of elements, from the structure of the sun, to PV solar plants. It subsequently addresses the status quo of solar technologies in Bulgaria, Serbia and the Republika Srpska and analyses the development of these technologies over the years, including their economic status, and how these aspects have shaped their current status. Undergraduate and graduate students, researchers and professionals, particularly those based in the Balkans, will find this book both informative and interesting.

Physics of Earth's Radiation Belts - Theory and Observations (Hardcover, 1st ed. 2022): Hannu E. J. Koskinen, Emilia K. J.... Physics of Earth's Radiation Belts - Theory and Observations (Hardcover, 1st ed. 2022)
Hannu E. J. Koskinen, Emilia K. J. Kilpua
R1,548 Discovery Miles 15 480 Ships in 18 - 22 working days

This open access book serves as textbook on the physics of the radiation belts surrounding the Earth. Discovered in 1958 the famous Van Allen Radiation belts were among the first scientific discoveries of the Space Age. Throughout the following decades the belts have been under intensive investigation motivated by the risks of radiation hazards they expose to electronics and humans on spacecraft in the Earth's inner magnetosphere. This textbook teaches the field from basic theory of particles and plasmas to observations which culminated in the highly successful Van Allen Probes Mission of NASA in 2012-2019. Using numerous data examples the authors explain the relevant concepts and theoretical background of the extremely complex radiation belt region, with the emphasis on giving a comprehensive and coherent understanding of physical processes affecting the dynamics of the belts. The target audience are doctoral students and young researchers who wish to learn about the physical processes underlying the acceleration, transport and loss of the radiation belt particles in the perspective of the state-of-the-art observations.

Astrobiology and Cuatro Cienegas Basin as an Analog of Early Earth (Hardcover, 1st ed. 2020): Valeria Souza, Antigona Segura,... Astrobiology and Cuatro Cienegas Basin as an Analog of Early Earth (Hardcover, 1st ed. 2020)
Valeria Souza, Antigona Segura, Jamie S. Foster
R2,667 Discovery Miles 26 670 Ships in 18 - 22 working days

Astrobiology not only investigates how early life took hold of our planet but also life on other planets - both in our Solar System and beyond - and their potential for habitability. The book take readers from the scars on planetary surfaces made by space rocks to the history of the Solar System narrated by those space rocks as well as exoplanets in other planetary systems. But the true question is how life arose here or elsewhere. Modern comparative genomics has revealed that Darwin was correct; a set of highly conserved genes and cellular functions indicate that all life is related by common ancestry. The Last Universal Common Ancestor or LUCA sits at the base of the Tree of Life. However, once that life took hold, it started to diversify and form complex microbial communities that are known as microbial mats and stromatolites. Due to their long evolutionary history and abundance on modern Earth, research on the biological, chemical and geological processes of stromatolite formation has provided important insights into the field of astrobiology. Many of these microbialite-containing ecosystems have been used as models for astrobiology, and NASA mission analogs including Shark Bay, Pavilion and Kelly Lakes. Modern microbialites represent natural laboratories to study primordial ecosystems and provide proxies for how life could evolve on other planets. However, few viral metagenomic studies (i.e., viromes) have been conducted in microbialites, which are not only an important part of the community but also mirror its biodiversity. This book focuses on particularly interesting sites such as Andean lake microbialites, a proxy of early life since they are characterized by very high UV light, while Alchichica and Bacalar lakes are characterized by high-salt and oligotrophic waters that nurture stromatolites. However, it is only the oasis of Cuatro Cienegas Basin in Mexico that stored past life in its marine sediments of the Sierra de San Marcos. This particular Sierra has a magmatic pouch that moves the deep aquifer to the surface in a cycle of sun drenched life and back to the depths of the magmatic life in an ancient cycle that now is broken by the overexploitation of the surface water as well as the deep aquifer in order to irrigate alfalfa in the desert. The anthropocene, the era of human folly, is killing this unique time machine and with it the memory of the planet.

Formation of the Solar System - A New Theory of the Creation and Decay of the Celestial Bodies (Hardcover, 2013 ed.): V.I.... Formation of the Solar System - A New Theory of the Creation and Decay of the Celestial Bodies (Hardcover, 2013 ed.)
V.I. Ferronsky, S.V. Ferronsky
R4,266 R3,465 Discovery Miles 34 650 Save R801 (19%) Ships in 10 - 15 working days

Analysis of the orbital motion of the Earth, the Moon and other planets and their satellites led to the discovery that all bodies in the Solar System are moving with the first cosmic velocity of their proto parents. The mean orbital velocity of each planet is equal to the first cosmic velocity of the Protosun, the radius of which is equal to the semi-major axis of the planet s orbit. The same applies for the planets satellites. All the small planets, comets, other bodies and the Sun itself follow this law, a finding that has also been proven by astronomical observations. The theoretical solutions based on the Jacobi dynamics explain the process of the system creation and decay, as well as the nature of Kepler s laws.

A History of the Italian Space Adventure - Pioneers and Achievements from the XIVth Century to the Present (Hardcover, 1st ed.... A History of the Italian Space Adventure - Pioneers and Achievements from the XIVth Century to the Present (Hardcover, 1st ed. 2020)
Giovanni Caprara
R1,247 R1,050 Discovery Miles 10 500 Save R197 (16%) Ships in 18 - 22 working days

This well-documented and fascinating book tells how, over the centuries, a series of visionaries, scientists, technologists, and politicians fostered the involvement of Italy in space exploration. The lives of these pioneers was often far from easy, yet they persevered. The fruits of their efforts can today be witnessed in Italy's success within the cutting-edge space sector. Italy's history in space started at the end of the fourteenth century and continued with the development of fireworks. Later, the nineteenth century marked the beginning of research into rockets in a more scientific way. After World War II, rocket technology was advanced with the aid of German scientists, and in the 1960s Luigi Broglio, the father of Italian space exploration, designed the San Marco satellite. In 1979 the first Italian Space Plan was launched, but it was the foundation of the Italian Space Agency in 1988 that kick-started a program of exploration in various fields of cosmic research. The outcome was construction of the Vega launcher and collaboration in the International Space Station. Now the Italian space industry stands ready to play an important role in the Gateway orbital station. All of this history, and more, is explored in this riveting book.

Our Celestial Clockwork: From Ancient Origins To Modern Astronomy Of The Solar System (Paperback): Richard Kerner Our Celestial Clockwork: From Ancient Origins To Modern Astronomy Of The Solar System (Paperback)
Richard Kerner
R1,297 Discovery Miles 12 970 Ships in 18 - 22 working days

This book is a superposition of two distinct narratives: the first is historical, discussing the evolution of astronomical knowledge since the dawn of civilizations; the second is scientific, conveying mathematical and physical content of each advancement. Great scientists of antiquity, Middle Ages and modern times until the 18th century, are presented along with their discoveries, through short biographies and anecdotes. Special care is taken to explain their achievements using mathematical and physical concepts of their time, with modern perspective added only when ancient methodology is too cumbersome or its language hardly understandable to contemporary readers.The book conveys a lot of astronomical facts and data in a pleasant and accessible manner. Almost all findings and discoveries made in ancient times are followed by simple mathematical exercises using basic knowledge, so that the reader can check the assertions himself. The book contains a lot of inedited illustrations. Geometrical schemes are given extra attention to make the examples clear and understandable. The language is simple and accessible to the young audience.

Solar-Terrestrial Magnetic Activity and Space Environment, Volume 14 (Hardcover, New): H. Wang Solar-Terrestrial Magnetic Activity and Space Environment, Volume 14 (Hardcover, New)
H. Wang; Edited by R. Xu
R5,671 Discovery Miles 56 710 Ships in 10 - 15 working days

The COSPAR Colloquium on Solar-Terrestrial Magnetic Activity and Space Environment (STMASE) was held in the National Astronomy Observatories of Chinese Academy of Sciences (NAOC) in Beijing, China in September 10-12, 2001. The meeting was focused on five areas of the solar-terrestrial magnetic activity and space environment studies, including study on solar surface magnetism; solar magnetic activity, dynamical response of the heliosphere; space weather prediction; and space environment exploration and monitoring. A hot topic of space research, CMEs, which are widely believed to be the most important phenomenon of the space environment, is discussed in many papers. Other papers show results of observational and theoretical studies toward better understanding of the complicated image of the magnetic coupling between the Sun and the Earth, although little is still known little its physical background. Space weather prediction, which is very important for a modern society expanding into out-space, is another hot topic of space research. However, a long way is still to go to predict exactly when and where a disaster will happen in the space. In that sense, there is much to do for space environment exploration and monitoring. The manuscripts submitted to this Monograph are divided into the following parts: (1) solar surface magnetism, (2) solar magnetic activity, (3) dynamical response of the heliosphere, (4) space environment exploration and monitoring; and (5) space weather prediction. Papers presented in this meeting but not submitted to this Monograph are listed by title as unpublished papers at the end of this book.

An Astronomical Inclusion Revolution - Advancing diversity, equity, and inclusion in professional astronomy and  astrophysics... An Astronomical Inclusion Revolution - Advancing diversity, equity, and inclusion in professional astronomy and astrophysics (Hardcover)
Dara Norman, Dorian Russell, Tim Sacco
R887 Discovery Miles 8 870 Ships in 10 - 15 working days
Something New Under the Sun - Satellites and the Beginning of the Space Age (Hardcover, 1998 ed.): Helen Gavaghan Something New Under the Sun - Satellites and the Beginning of the Space Age (Hardcover, 1998 ed.)
Helen Gavaghan
R916 R830 Discovery Miles 8 300 Save R86 (9%) Ships in 18 - 22 working days

In this, the first history of artifical satellites and their uses, Helen Gavaghan shows how the idea of putting an object in orbit around the earth changed from science fiction to indespensible technology in the twinkling of an eye. Thanks to satellites, we can now send data and images anywhere in the world in an instant. The satellite-based navigational system can pinpoint your exact location anywhere in the world; it is so precise that, from outer space, it can detect the sag on an airplane's wing. Focusing on three major areas of development - navigational satellites, communications, and weather observation and forecasting - Gavaghan tells the remarkable inside story of how obscure men and women, often laboring under strict secrecy, made the extraordinary scientific and technological discoveries needed to make these miracles happen. Written by a science journalist with support from the Sloane Foundation, the book describes the birth of the modern scientific era in the twentieth century, with creation of satellite technology. The narrative is part history - beginning with the Russian-U.S. contest with the launch of Sputnik; part politics, as scientists and visionary engineers compete for scarce funding that will bring their dreams to reality; partly the story of the singular and fascinating individuals who were present at the creation of our modern technological era.

Calendrical Calculations - The Ultimate Edition (Paperback, 4th Revised edition): Edward M. Reingold, Nachum Dershowitz Calendrical Calculations - The Ultimate Edition (Paperback, 4th Revised edition)
Edward M. Reingold, Nachum Dershowitz
R1,258 Discovery Miles 12 580 Ships in 10 - 15 working days

An invaluable resource for working programmers, as well as a fount of useful algorithmic tools for computer scientists, astronomers, and other calendar enthusiasts, The Ultimate Edition updates and expands the previous edition to achieve more accurate results and present new calendar variants. The book now includes coverage of Unix dates, Italian time, the Akan, Icelandic, Saudi Arabian Umm al-Qura, and Babylonian calendars. There are also expanded treatments of the observational Islamic and Hebrew calendars and brief discussions of the Samaritan and Nepalese calendars. Several of the astronomical functions have been rewritten to produce more accurate results and to include calculations of moonrise and moonset. The authors frame the calendars of the world in a completely algorithmic form, allowing easy conversion among these calendars and the determination of secular and religious holidays. LISP code for all the algorithms is available in machine-readable form.

Organizations and Strategies in Astronomy - Volume III (Hardcover, 2002 ed.): Andre Heck Organizations and Strategies in Astronomy - Volume III (Hardcover, 2002 ed.)
Andre Heck
R2,678 Discovery Miles 26 780 Ships in 18 - 22 working days

We have arrived at the third volume of this useful series on Organiza tions and Strategies in Astronomy (OSA). It contains seventeen articles on a wide range of topics, from virtual observatories, astronomy organizations in various communities (Czech Republic, Slovak Republic, South Africa), and the role of ground stations in space observatories, to quality assurance in UK higher education. In this foreword, I shall give some views on ideas expressed in this volume, in particular from my personal experience when I was project officer for the Canada-France-Hawaii Telescope (CFHT). Let me first remind readers that present and future astronomy is in creasingly dependent on high-level management. Not everybody knows that the scheduling of the Hubble Space Telescope is performed by a neural network software called SPIKE, described in the stimulating workshop New Observing Modes for the Next Centuryl, partly reported in OSA Volume II by 1. Robson. New observing facilities, in space or on the ground, are so complex that they need highly qualified engineers and rigorous management procedures. Each observing hour on the Very Large Telescope (VLT) fa cility is worth about EUR 7,000, including the amortization of the capital expenses over 30 years. This does not leave much room for amateurism, neither in the time allocation procedures, nor in the daily telescope control.

Radio Physics of the Sun (Hardcover, 1980 ed.): M.R. Kundu, T. E. Gergely Radio Physics of the Sun (Hardcover, 1980 ed.)
M.R. Kundu, T. E. Gergely
R5,411 Discovery Miles 54 110 Ships in 18 - 22 working days

For over 35 years, radio astronomical techniques have made an impressive series of advances in our understanding of solar phenomena. However, although the subject has been partially discussed in "Paris Symposium on Radio Astronomy" in 1958, NASA-GSFC Symposium on "Physics of Solar Flares" in 1963, and the lAU Symposium No. 57 on "Coronal Disturbances" in 1973, there has not been a major international meeting dedicated to "Radio Physics of the Sun." This is the first major symposium on the subject held under the auspices of the International Astronomical Union. It was jointly spon sored by lAU Commission 40, Radio Astronomy, and by lAU Commission 10, Solar Activity. It was also sponsored by the Solar Physics Division of the American Astronomical Society. Thig volume contains the proceedings of this meeting, lAU Symposium No. 86 on "Radio Physics of the Sun" that was held in College Park, Maryland, August 7-10, 1979. The Scientific Organizing Committee of the Symposium consisted of M. R. Kundu (chairman), G. A. Dulk, O. Hachenberg, M. Kuperus, D. J. McLean, D. Melrose, M. Pick, J. L. Steinberg, T. Takakura, A. Tlamicha and V. V. Zheleznyakov. The topics and speakers were chosen in order to emphasize the current observational material with particular reference to centi meter wavelength observations of a few arc-second resolution, fast two-dimensional pictures of the sun at meter-decameter wavelengths and the recent advances in plasma and radiation theory."

Illuminating Dark Matter - Proceedings of a Simons Symposium (Hardcover, 1st ed. 2019): Rouven Essig, Jonathan Feng, Kathryn... Illuminating Dark Matter - Proceedings of a Simons Symposium (Hardcover, 1st ed. 2019)
Rouven Essig, Jonathan Feng, Kathryn Zurek
R2,653 Discovery Miles 26 530 Ships in 18 - 22 working days

Based on a Simons Symposium held in 2018, the proceedings in this volume focus on the theoretical, numerical, and observational quest for dark matter in the universe. Present ground-based and satellite searches have so far severely constrained the long-proposed theoretical models for dark matter. Nevertheless, there is continuously growing astrophysical and cosmological evidence for its existence. To address present and future developments in the field, novel ideas, theories, and approaches are called for. The symposium gathered together a new generation of experts pursuing innovative, more complex theories of dark matter than previously considered.This is being done hand in hand with experts in numerical astrophysical simulations and observational techniques-all paramount for deciphering the nature of dark matter. The proceedings volume provides coverage of the most advanced stage of understanding dark matter in various new frameworks. The collection will be useful for graduate students, postdocs, and investigators interested in cutting-edge research on one of the biggest mysteries of our universe.

Solar and Stellar Magnetic Fields: Origins and Coronal Effects (Hardcover, 1983 ed.): Jan Olof Stenflo Solar and Stellar Magnetic Fields: Origins and Coronal Effects (Hardcover, 1983 ed.)
Jan Olof Stenflo
R2,823 Discovery Miles 28 230 Ships in 18 - 22 working days

Traditionally, solar and stellar physics have been two separate branches of astronomy, which independently of each other have developed their own scientific goals and methods. During the last decade, however, we have witnessed a gradual convergence of these two areas: The solar physicists realize more and more that the sun has to be seen as a special case in a large family of stars of various properties. A more complete understanding of the sun can only be achieved by considering it in this broader context. The stellar physicists on the other hand have become aware that the detailed knowledge of the physical processes that the solar physicists have reached has a more general significance and can be applied to a variety of other astrophysical objects. Observational techniques developed in solar work can frequently be adapted for other stars as well. This unified approach to solar and stellar physics is often called the "solar-stellar connection". One main goal of this approach has been to understand the general nature and causes of stellar activity. The pioneering and visionary program to search for activity cycles on other stars started by Olin Wilson at the Mount Wilson Observatory 16 years ago has born fruit: in his sample of 91 stars, cyclic behaviour similar to that of the sun is found to be quite common, but many stars also show irregular activity fluctua.tions of large amplitude.

Our Sun - A Star and Energy Source Astronomy Beginners' Guide Grade 4 Children's Astronomy & Space Books (Hardcover):... Our Sun - A Star and Energy Source Astronomy Beginners' Guide Grade 4 Children's Astronomy & Space Books (Hardcover)
Baby Professor
R689 R613 Discovery Miles 6 130 Save R76 (11%) Ships in 18 - 22 working days
Astronomical Masers (Hardcover, 1992 ed.): M. Elitzur Astronomical Masers (Hardcover, 1992 ed.)
M. Elitzur
R4,057 Discovery Miles 40 570 Ships in 18 - 22 working days

One of the most spectacular discoveries of molecular astronomy has been the detection of maser emission. The same radiation that is generated in the laboratory only with elaborate, special equipment occurs naturally in interstellar space. This intense radiation probes the smallest structures that can be studied with radio telescopes. By a fortunate coincidence maser radiation is generated in both star forming regions and the envelopes of late-type stars. The early and late stages in the life of a star are considered to be the most interesting phases of stellar evolution. Maser emission has also been detected in external galaxies. This book provides an extensive coverage of the interstellar maser phenomenon. A precondition for maser action is departure from thermal equilibrium. The book therefore starts with a detailed coverage of the basic background concepts required for an understanding of line formation and radiative transfer. It goes on to describe the theoretical and phenomenological aspects of interstellar masers, their formation sites and the inversion mechanisms. The book will interest active researchers in astronomy and astrophysics as well as in other areas of physics. It is suitable as a textbook in a graduate course and will enable a graduate student to embark on research projects in this exciting area in particular, and molecular radio astronomy in general.

Comet/Asteroid Impacts and Human Society - An Interdisciplinary Approach (Hardcover): Peter T. Bobrowsky, Hans Rickman Comet/Asteroid Impacts and Human Society - An Interdisciplinary Approach (Hardcover)
Peter T. Bobrowsky, Hans Rickman
R6,132 Discovery Miles 61 320 Ships in 18 - 22 working days

Leading specialists in various disciplines were first invited to a multidisciplinary workshop funded by ICSU on the topic to gain a better appreciation and perspective on the subject of comet/asteroid impacts as viewed by different disciplines. This volume provides a necessary link between various disciplines and comet/asteroid impacts.

Free Delivery
Pinterest Twitter Facebook Google+
You may like...
The Night in Question
Eric Chappell Paperback R305 Discovery Miles 3 050
Mandela - The Authorised Biography
Anthony Sampson Paperback  (1)
R560 R496 Discovery Miles 4 960
'n Plek Vir Patat
Wendy Maartens Paperback R130 R118 Discovery Miles 1 180
Churchill Plays: 2 - Softcops; Top…
Caryl Churchill Hardcover R2,215 Discovery Miles 22 150
Compaq Visual Fortran - A Guide to…
Norman Lawrence Paperback R2,492 Discovery Miles 24 920
Greenwash
David Lewis Paperback R310 Discovery Miles 3 100
Formal and Practical Aspects of…
Marjan Mernik Hardcover R5,072 Discovery Miles 50 720
Anxiety, Volume 103
Gerald Litwack Hardcover R4,521 Discovery Miles 45 210
Babysitting Calvin
John H. Newmeir Paperback R345 Discovery Miles 3 450
Creating Modern Neuroscience: The…
Gordon M Shepherd MD, DPhil Hardcover R2,231 Discovery Miles 22 310

 

Partners