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Books > Science & Mathematics > Physics > Applied physics & special topics > Astrophysics
Over the past ten years, the discovery of extrasolar planets has
opened a new field of astronomy, and this area of research is
rapidly growing, from both the observational and theoretical point
of view. The presence of many giant exoplanets in the close
vicinity of their star shows that these newly discovered planetary
systems are very different from the solar system. New theoretical
models are being developed in order to understand their formation
scenarios, and new observational methods are being implemented to
increase the sensitivity of exoplanet detections. In the present
book, the authors address the question of planetary systems from
all aspects. Starting from the facts (the detection of more than
300 extraterrestrial planets), they first describe the various
methods used for these discoveries and propose a synthetic analysis
of their global properties. They then consider the observations of
young stars and circumstellar disks and address the case of the
solar system as a specific example, different from the newly
discovered systems. Then the study of planetary systems and of
exoplanets is presented from a more theoretical point of view. The
book ends with an outlook to future astronomical projects, and a
description of the search for life on exoplanets. This book
addresses students and researchers who wish to better understand
this newly expanding field of research.
The Cosmic Microwave Background (CMB), the radiation left over from
the Big Bang, is arguably the most important topic in modern
cosmology. Its theory and observation have revolutionized cosmology
from an order-of-magnitude science to a precision science. This
graduate textbook describes CMB physics from first principles in a
detailed yet pedagogical way, assuming only that the reader has a
working knowledge of General Relativity. Among the changes in this
second edition are new chapters on non-Gaussianities in the CMB and
on large-scale structure, and extended discussions on lensing and
baryon acoustic oscillations, topics that have developed
significantly in the last decade. Discussions of CMB experiments
have been updated from WMAP data to the new Planck data. The CMB
success story in estimating cosmological parameters is then treated
in detail, conveying the beauty of the interplay of theoretical
understanding and precise experimental measurements.
Recent observational results from space- and ground-based
telescopes have demonstrated that a unified approach to the
relationships between solar and stellar magnetism is necessary to
advance our understanding of magnetic fields. The Proceedings of
IAU Symposium 354 present recent results and discussions of
emerging topics, including: magnetic field diagnostics using
high-resolution observation; initial data from ALMA, Chinese Radio
Spectroheliograph and other instruments; the detection of stellar
magnetospheres; and the detailed mapping of magnetic fields on the
surface of stars using new unique instrumentation. These
observations stimulate comparisons of solar and stellar results,
and improve our understanding of how surface magnetic structures
and their evolution are related to the generation of magnetic
fields by dynamos in solar and stellar interiors. This volume
benefits graduate students and researchers interested in the recent
advances and key problems of solar and stellar magnetic fields, and
their impacts on planetary atmospheres.
Very Short Introductions: Brilliant, Sharp, Inspiring Almost
everything we know about the Universe has come from studying the
messages carried by light from outer space. Until only a handful of
decades ago, this meant observing optical photons in the narrow
visible region of the electromagnetic spectrum. However, recent
technological developments have now enabled us to extend this range
and explore the Universe at radio, infrared, ultraviolet, X-ray,
and gamma-ray wavelengths. The observations reveal a plethora of
exotic phenomena such as young galaxies at the edge of the visible
Universe, quasars, pulsars, colliding galaxies, and exploding
stars, often at great distances. We have discovered that the
Universe is expanding and that the expansion itself is
accelerating. Closer to our home planet, we track killer asteroids
and comets. Working closely together, observational astronomy and
astrophysics have shown us how stars produce their energy, where
the chemical elements come from, how black holes form, and how the
giant supermassive black holes lurking in the hearts of galaxies
spew immensely powerful jets of particles and energy thousands of
light years out into space. And we now have new ways beyond light
to probe the mysteries of the Universe. This Very Short
Introduction describes how neutrinos and gravitational waves are
revolutionizing our knowledge. How do we know all this? Advances in
telescope technologies offer a partial explanation, but technology
alone is not enough. Unlocking the secrets of the Universe also
involves the critical application of the laws of physics to the
observations. Cottrell describes how we are turning observations
into knowledge and how theory, in turn, is inspiring new
observations. ABOUT THE SERIES: The Very Short Introductions series
from Oxford University Press contains hundreds of titles in almost
every subject area. These pocket-sized books are the perfect way to
get ahead in a new subject quickly. Our expert authors combine
facts, analysis, perspective, new ideas, and enthusiasm to make
interesting and challenging topics highly readable.
As featured in THE EDGE OF ALL WE KNOW - the new Netflix
documentary about Black Holes For readers of Stephen Hawking, a
fascinating account of the universe from the perspective of
world-leading astrophysicist Heino Falcke, who took the first ever
picture of a black hole. 10th April 2019: a global sensation. Heino
Falcke, a man "working at the boundaries of his discipline and
therefore at the limits of the universe" had used a network of
telescopes spanning the entire planet to take the first picture of
a black hole. Light in the Darkness examines how mankind has always
looked to the skies, mapping the journey from millennia ago when we
turned our gaze to the heavens, to modern astrophysics. Heino
Falcke and Jorg Romer entertainingly and compellingly chart the
breakthrough research of Falcke's team, an unprecedented global
community of international colleagues developing a telescope
complex enough to look directly into a black hole - a hole where
light vanishes, and time stops. What does this development mean? Is
this the beginning of a new physics? What can we learn from this
about God, the world, and ourselves? For Falcke, astrophysics and
metaphysics, science and faith, do not exclude one another. Black
Hole is both a plea for curiosity and humility; it's interested in
both what we know, and the mysteries that remain unsolved.
This volume gives an overview of knowledge about the light nuclei
created in the Hot Early Universe: H, D, 3He, 4He, and 7Li. It
combines observational and theoretical results on the early
Universe, the distant galaxies, our Milky Way, the local
interstellar cloud, and the solar nebula. The implications for
cosmology, galactic and stellar evolution, dark matter research
etc. are outlined and directions of future research are indicated.
I. Initial Angular Momentum Distribution.- Angular Momentum Effects
in Star Formation.- Evolutionary Properties of Intermediate-Mass
Protostar.- Small-Scale Structure and Angular Momentum Transfer in
Protostellar Environments.- Ekman Pumping in a Rotating Protostar.-
Rotation in Pre-Main Sequence Stars; Properties and Evolution.-
Disks Associated with Intermediate Mass Stars.- Differential
Rotation of Fully Convective Pre-Main Sequence Stars.- The X-ray
Emission from PMS Stars in Taurus-Auriga, and the Relationship with
Other Diagnostics of Activity.- Multifrequency Monitoring of RU
Lupi; Observational Results and a Model.- Polarimetry and CCD
Imaging of Herbig Ae/Be Stars and Star Forming Regions.- II:
Angular Momentum Evolution.- Rotational Velocities of Low Mass
Stars in Young Clusters.- Rotation of Young Stars in the Orion
Nebula Region.- Rotational Velocities of Stars in Open Clusters;
the Time-Dependence Revisited.- Main Sequence Angular Momentum Loss
in Low-Mass Stars.- The Angular Momentum Evolution of Young and Old
Binary Components.- Ages of Spotted Late-Type Stars.- Rotation of
Evolved Stars.- Rotational Discontinuity of Evolved Stars; What
Interpretation?.- III: Consequence of Rotation.- Magnetic Activity
and Rotation.- Lithium, Rotation and Age.- Rotation, Chromospheric
Activity, and Lithium Abundances in G and K Dwarfs of the
Pleiades.- Lithium Abundance and Rotation in Southern
Chromospherically Active Stars.- Lithium Depletion Induced by
Rotation in Young Stars.- Rotational Mixing and Lithium in Young
Stars.- IV: Internal Rotation and Models.- Internal Solar
Rotation.- Stellar Activity Belts as Potential Indicators of
Internal Rotation and Angular Momentum Distribution.- Dynamics of
Spot Groups and Rotation of the External Convective Layers in the
Sun and Magnetically Active Stars.- Theory of Magnetic Braking of
Late-Type Stars.- Pre-Main Sequence and Main Sequence Rotational
Evolution; Constraints on Models Derived from Observations.-
Evolutionary Models of Rotating Stars.- The Internal Rotation of
the Sun; Implications on the History of its Angular Momentum.-
Angular Momentum Transport, Rotational Instabilities, Magnetic
Fields and Mixing.- The Spin-Down of Main Sequence Stars Based on
Observed Magnetic Field Strength.- Session V: Observational
Perspectives.- Observational Perspectives.- PRISMA: a Space
Facility for Studying Rotation and Activity.- The Spectrum-UV
Project.- Summary of the Workshop.- Panel Discussion: Initial
Angular Momentum.- Panel Discussion: Dynamos and Internal
Rotation.- Author Index.- Object Index.
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Planets and life
(Paperback)
Therese Encrenaz, James Lequeux, Fabienne Casoli
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SHORTLISTED FOR THE ROYAL SOCIETY SCIENCE BOOK PRIZE 2021 FINALIST
FOR THE PEN/E.O. WILSON LITERARY SCIENCE WRITING AWARD AN AMAZON
BEST BOOK OF 2020 To be an astronomer is to journey to some of the
most inaccessible parts of the globe, braving mountain passes,
sub-zero temperatures, and hostile flora and fauna. Not to mention
the stress of handling equipment worth millions. It is a life of
unique delights and absurdities ... and one that may be drawing to
a close. Since Galileo first pointed his telescope at the heavens,
astronomy has stood as a fount of human creativity and discovery,
but soon it will be the robots gazing at the sky while we are left
to sift through the data. In The Last Stargazers, Emily Levesque
reveals the hidden world of the professional astronomer. She
celebrates an era of ingenuity and curiosity, and asks us to think
twice before we cast aside our sense of wonder at the universe.
Einstein's general theory of relativity - currently our best theory
of gravity - is important not only to specialists, but to a much
wider group of physicists. This short textbook on general
relativity and gravitation offers students glimpses of the vast
landscape of science connected to general relativity. It
incorporates some of the latest research in the field. The book is
aimed at readers with a broad range of interests in physics, from
cosmology, to gravitational radiation, to high energy physics, to
condensed matter theory. The pedagogical approach is "physics
first": readers move very quickly to the calculation of
observational predictions, and only return to the mathematical
foundations after the physics is established. In addition to the
"standard" topics covered by most introductory textbooks, it
contains short introductions to more advanced topics: for instance,
why field equations are second order, how to treat gravitational
energy, and what is required for a Hamiltonian formulation of
general relativity. A concluding chapter discusses directions for
further study, from mathematical relativity, to experimental tests,
to quantum gravity. This is an introductory text, but it has also
been written as a jumping-off point for readers who plan to study
more specialized topics.
It is now clear that a binary evolutionary pathway is responsible
for a significant fraction of all planetary nebulae, with some
authors even going so far as to claim that binarity may be a near
requirement for the formation of an observable nebula. This has led
to the requirement that textbooks most likely need to be rewritten.
Building upon the review of Jones and Boffin in Nature Astronomy
(2017), this Springer Brief takes a first step in this direction.
It offers the first expanded presentation of all the theoretical
and observational support for the importance of binarity in the
formation of planetary nebulae, initially focusing on common
envelope evolution but also covering wider binaries. This book
emphasises the wider impact of the field, highlighting the critical
role binary central stars of planetary nebulae have in
understanding a plethora of astrophysical phenomena, including type
Ia supernovae, chemically peculiar stars and circumbinary
exoplanets.
This research monograph presents a new dynamical framework for the
study of secular morphological evolution of galaxies along the
Hubble sequence. Classical approaches based on Boltzmann's kinetic
equation, as well as on its moment-equation descendants the Euler
and Navier-Stokes fluid equations, are inadequate for treating the
maintenance and long-term evolution of systems containing
self-organized structures such as galactic density-wave modes. A
global and synthetic approach, incorporating correlated
fluctuations of the constituent particles during a nonequilibrium
phase transition, is adopted to supplement the continuum treatment.
The cutting-edge research combining analytical, N-body
simulational, and observational aspects, as well as the
fundamental-physics connections it provides, make this work a
valuable reference for researchers and graduate students in
astronomy, astrophysics, cosmology, many-body physics, complexity
theory, and other related fields. Contents Dynamical Drivers of
Galaxy Evolution N-Body Simulations of Galaxy Evolution
Astrophysical Implications of the Dynamical Theory Putting It All
Together Concluding Remarks Appendix: Relation to Kinetics and
Fluid Mechanics
Space debris and asteroid impacts pose a very real, very near-term
threat to Earth. In order to help study and mitigate these risks,
the Stardust program was formed in 2013. This training and research
network was devoted to developing and mastering techniques such as
removal, deflection, exploitation, and tracking. This book is a
collection of many of the topics addressed at the Final Stardust
Conference, describing the latest in asteroid monitoring and how
engineering efforts can help us reduce space debris. It is a
selection of studies bringing together specialists from
universities, research institutions, and industry, tasked with the
mission of pushing the boundaries of space research with innovative
ideas and visionary concepts. Topics covered by the Symposium:
Orbital and Attitude Dynamics Modeling Long Term Orbit and Attitude
Evolution Particle Cloud Modeling and Simulation Collision and
Impact Modelling and Simulation, Re-entry Modeling and Simulation
Asteroid Origins and Characterization Orbit and Attitude
Determination Impact Prediction and Risk Analysis, Mission
Analysis-Proximity Operations, Active Removal/Deflection Control
Under Uncertainty, Active Removal/Deflection Technologies, and
Asteroid Manipulation
Marvel at the wonders of the Universe, from stars and planets to
black holes and nebulae, in this exploration of our Solar System
and beyond. Universe opens with a look at astronomy and the history
of the Universe, using 3D artworks to provide a comprehensive
grounding in the fundamental concepts of astronomy, including the
basic techniques of practical astronomy. The core of the book is a
tour of the cosmos covering the Solar System, the Milky Way, and
galaxies beyond our own. Explanatory pages introduce different
celestial phenomena, such as galaxies, and are followed by
catalogues that profile the most interesting and important
examples. A comprehensive star atlas completes the picture, with
entries on each of the 88 constellations and a monthly sky guide
showing the night sky as it appears throughout the year as viewed
from both the northern and southern hemispheres.
Gamma-ray bursts (GRBs) are the most luminous explosions in the
universe, which within seconds release energy comparable to what
the Sun releases in its entire lifetime. The field of GRBs has
developed rapidly and matured over the past decades. Written by a
leading researcher, this text presents a thorough treatment of
every aspect of the physics of GRBs. It starts with an overview of
the field and an introduction to GRB phenomenology. After laying
out the basics of relativity, relativistic shocks, and leptonic and
hadronic radiation processes, the volume covers all topics related
to GRBs, including a general theoretical framework, afterglow and
prompt emission models, progenitor, central engine, multi-messenger
aspects (cosmic rays, neutrinos, and gravitational waves),
cosmological connections, and broader impacts on fundamental
physics and astrobiology. It is suitable for advanced
undergraduates, graduate students, and experienced researchers in
the field of GRBs and high-energy astrophysics in general.
The success of any space flight mission depends not only on
advanced technology but also on the health and well-being of crew
members. This book, written by an astronaut physician, is the first
practical guide to maintaining crew members health in space. It
combines research results with practical advice on such problems as
bone loss, kidney stones, muscle wasting, motion sickness, loss of
balance, orthostatic intolerance, weight loss, and excessive
radiation exposure. Additional topics include pre-flight
preparation, relevant gender differences, long-duration medical
planning, post-flight rehabilitation, and the physiology of
extra-vehicular activity. Designed as a handbook for space crews,
this text is also an invaluable tool for all the engineers, medical
personnel, and scientists who plan and execute space missions.
As evidenced by five Nobel Prizes in physics, radio astronomy in
its 80-year history has contributed greatly to our understanding of
the universe. Yet for too long, there has been no suitable textbook
on radio astronomy for undergraduate students. Fundamentals of
Radio Astronomy: Observational Methods is the first
undergraduate-level textbook exclusively devoted to radio astronomy
telescopes and observation methods. This book, the first of two
volumes, explains the instrumentation and techniques needed to make
successful observations in radio astronomy. With examples
interspersed throughout and problems at the end of each chapter, it
prepares students to contribute to a radio astronomy research team.
Requiring no prior knowledge of astronomy, the text begins with a
review of pertinent astronomy basics. It then discusses radiation
physics, the collection and detection of astronomical radio signals
using radio telescopes, the functioning of various components of
radio telescopes, and the processes involved in making successful
radio observations. The book also provides a conceptual
understanding of the fundamental principles of aperture synthesis
and a more advanced undergraduate-level discussion of real-world
interferometry observations. Web ResourceA set of laboratory
exercises is available for download on the book's CRC Press web
page. These labs use the Small Radio Telescope (SRT) and the Very
Small Radio Telescope (VSRT) developed for educational use by MIT's
Haystack Observatory. The web page also includes a Java package
that demonstrates the principles of Fourier transforms, which are
needed for the analysis of interferometric data.
Astrometry has historically been fundamental to all the fields of
astronomy, driving many revolutionary scientific results. ESA's
Gaia mission is astrometrically, photometrically and
spectroscopically surveying the full sky, measuring around a
billion stars to magnitude 20, to allow stellar distance and age
estimations with unprecedented accuracy. With the complement of
radial velocities, it will provide the full kinematic information
of these targets, while the photometric and spectroscopic data will
be used to classify objects and astrophysically characterize stars.
IAU Symposium 330 reviews the first 2.5 years of Gaia activities
and discusses the scientific results derived from the first Gaia
data release (GDR1). This significant increase in the precision of
the astrometric measurements has sharpened our view of the Milky
Way and the physical processes involved in stellar and galactic
evolution. To many, the Gaia revolution heralds a transformation
comparable to the impact of the telescope's invention four
centuries ago.
Heliophysics is a fast-developing scientific discipline that
integrates studies of the Sun's variability, the surrounding
heliosphere, and the environment and climate of planets. This
volume, the fourth in the Heliophysics collection, explores what
makes the conditions on Earth 'just right' to sustain life, by
comparing Earth to other solar system planets, by comparing solar
magnetic activity to that of other stars, and by looking at the
properties of evolving exoplanet systems. By taking an
interdisciplinary approach and using comparative heliophysics, the
authors illustrate how we can learn about our local cosmos by
looking beyond it, and in doing so, also enable the converse.
Supplementary online resources are provided, including lecture
presentations, problem sets and exercise labs, making this ideal as
a textbook for advanced undergraduate- and graduate-level courses,
as well as a foundational reference for researchers in the many
subdisciplines of helio- and astrophysics.
Plasmas comprise more than 99% of the observable universe. They are
important in many technologies and are key potential sources for
fusion power. Atomic and radiation physics is critical for the
diagnosis, observation and simulation of astrophysical and
laboratory plasmas, and plasma physicists working in a range of
areas from astrophysics, magnetic fusion, and inertial fusion
utilise atomic and radiation physics to interpret measurements.
This text develops the physics of emission, absorption and
interaction of light in astrophysics and in laboratory plasmas from
first principles using the physics of various fields of study
including quantum mechanics, electricity and magnetism, and
statistical physics. Linking undergraduate level atomic and
radiation physics with the advanced material required for
postgraduate study and research, this text adopts a highly
pedagogical approach and includes numerous exercises within each
chapter for students to reinforce their understanding of the key
concepts.
The variable activity of stars such as the Sun is mediated through
stellar magnetic fields, radiative and energetic particle fluxes,
stellar winds and magnetic storms manifested as stellar flares and
coronal mass ejections. This activity influences planetary
atmospheres, climate and habitability: on the one hand it drives
life-sustaining processes on planets, but on the other hand can
adversely impact planetary environments rendering them
uninhabitable. Studies of this intimate relationship between the
parent star, its astrosphere and the planets that it hosts have
reached a certain level of maturity in our own Solar System. Based
on this understanding, the first attempts are being made to
characterize the interactions between distant stars and their
planets and understand their coupled evolution, which is relevant
for the search for habitable exoplanets. IAU Symposium 328 brings
together diverse, interdisciplinary reviews and research papers
which address the themes of star-planet interactions and
habitability.
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