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Books > Science & Mathematics > Astronomy, space & time
"The Early Evolution of the Atmospheres of Terrestrial Planets"
presents the main processes participating in the atmospheric
evolution of terrestrial planets. A group of experts in the
different fields provide an update of our current knowledge on this
topic. Several papers in this book discuss the key role of nitrogen
in the atmospheric evolution of terrestrial planets. The earliest
setting and evolution of planetary atmospheres of terrestrial
planets is directly associated with accretion, chemical
differentiation, outgassing, stochastic impacts, and extremely high
energy fluxes from their host stars. This book provides an overview
of the present knowledge of the initial atmospheric composition of
the terrestrial planets. Additionally it includes some papers about
the current exoplanet discoveries and provides additional clues to
our understanding of Earth's transition from a hot accretionary
phase into a habitable world. All papers included were reviewed by
experts in their respective fields. We are living in an epoch of
important exoplanet discoveries, but current properties of these
exoplanets do not match our scientific predictions using standard
terrestrial planet models. This book deals with the main
physio-chemical signatures and processes that could be useful to
better understand the formation of rocky planets.
This book is a sequel to Heaven and Earth in Ancient Greek
Cosmology (Springer 2011). With the help of many pictures, the
reader is introduced into the way of thinking of ancient believers
in a flat earth. The first part offers new interpretations of
several Presocratic cosmologists and a critical discussion of
Aristotle's proofs that the earth is spherical. The second part
explains and discusses the ancient Chinese system called gai tian.
The last chapter shows that, inadvertently, ancient arguments and
ideas return in the curious modern flat earth cosmologies.
The quantity of numbered minor planets is now approaching half a
million. Together with this Addendum, the sixth edition of the
Dictionary of Minor Planet Names, which is the IAU's official
reference for the field, now covers more than 19,000 named minor
planets. In addition to being of practical value for identification
purposes, the Dictionary of Minor Planet Names provides
authoritative information about the basis for the rich and colorful
variety of ingenious names, from heavenly goddesses to artists,
from scientists to Nobel laureates, from historical or political
figures to ordinary women and men, from mountains to buildings, as
well as a variety of compound terms and curiosities. This Addendum
to the 6th edition of the Dictionary of Minor Planet Names adds
approximately 2200 entries. It also contains many corrections,
revisions and updates to the entries published in earlier editions.
This work is an abundant source of information for anyone
interested in minor planets and who enjoys reading about the people
and things minor planets commemorate.
I. Cosmic Rays and the Interstellar Medium.- A Brief Introduction
to the Cosmic Radiation.- The Composition of the Cosmic Rays: An
Update.- Interstellar Dust-Gas Relationships.- Dust, Gas and Cosmic
Rays in the Interstellar Medium.- Comparison Between Greenberg and
Mathis Models of Grains for the H2 Formation Induced by Cosmic
Rays.- II. Supernovae, Acceleration, Propagation and Source
Composition.- Shock Acceleration of Cosmic Rays.- Source
Composition, Sites of Origin And Acceleration of Cosmic Rays.-
Cosmic-Ray Age and the Interstellar Medium.- The Production of
Antiprotons in the Interstellar Gas by Propagating Cosmic Rays.-
The Source Composition of Galactic Cosmic Rays and the Condensation
Process of the Elements in Circumstellar and Interstellar Gases.-
The Distribution of Supernova Remnants in the Galaxy.- Gamma Rays
from Supernova 1987A.- Acceleration of Cosmic Rays at Young
Supernova Remnants.- The Effect of Relativistic Particle Beams on
the Evolution of Supernova Envelopes: Self-Consistent Solutions.-
Radio Spectral Variations in the Cygnus Loop.- III. Gamma Rays and
Their Role as Cosmic Ray Tracers.- Gamma Ray Astrophysics at
Energies up to 10 Gev.- Vhe and UHE Gamma Ray Sources.- Gamma-Rays
from Electron, Proton Beam Interactions with Matter and/or
Radiation: Application to Cygx-L, Geminga, and 3C273.- Gamma Rays
and Neutrinos from Accretion Processes onto Collapsed Objects:
Application to 3C273.- Nearby Galaxies in Highenergy Gamma Rays.-
IV. Ultra-Energetic Cosmic Nuclei.- Cosmic Rays at the Highest
Energies.- Participants.- Author Index.
This book approaches geological, geomorphological and topographical
mapping from the point in the workflow at which science-ready
datasets are available. Though there have been many individual
projects on dynamic maps and online GISs, in which coding and data
processing are given precedence over cartographic principles,
cartography is more than "just" processing and displaying spatial
data. However, there are currently no textbooks on this rapidly
changing field, and methods tend to be shared informally.
Addressing this gap in the literature, the respective chapters
outline many topics pertaining to cartography and mapping such as
the role and definition of planetary cartography and (vs?)
Geographic Information Science; theoretical background and
practical methodologies in geological mapping; science-ready versus
public-ready products; a goal/procedure-focused practical manual of
the most commonly used software in planetary mapping, which
includes generic (ArcGIS and its extensions, JMARS) and specific
tools (HiView, Cratertools etc.); extracting topographic
information from images; thematic mapping: climate; geophysics;
surface modeling; change detection; landing site selection; shared
maps; dynamic maps on the web; planetary GIS interfaces;
crowdsourcing; crater counting techniques; irregular bodies;
geological unit symbology; mapping center activities; and web
services. All chapters were prepared by authors who have actually
produced geological maps or GISs for NASA / the USGS, DLR, ESA or
MIIGAIK. Taken together, they offer an excellent resource for all
planetary scientists whose research depends on mapping, and for
students of astrogeology.
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Astronomy
(Hardcover)
Andrew Fraknoi, David Morrison, Sidney C. Wolff
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R2,578
Discovery Miles 25 780
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Ships in 12 - 17 working days
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Where did we come from? Before there was life there had to be
something to live on - a planet, a solar system. During the past
200 years, astronomers and geologists have developed and tested
several different theories about the origin of the solar system and
the nature of the Earth. Did the Earth and other planets form as a
by-product of a natural process that formed the Sun? Did the solar
system come into being as the result of catastrophic encounter of
two stars? Is the inside of the Earth solid, liquid or gaseous? The
three volumes that make up A History of Modern Planetary Physics
present a survey of these theories. Nebulous Earth follows the
development of the nineteenth-century's most popular explanation
for the origin of the solar system, Laplace's Nebular Hypothesis.
This theory supposes that a flattened mass of gas extending beyond
Neptune's orbit cooled and shrank, throwing off in the process
successive rings that in time coalesced to form several planets.
More than two centuries have elapsed since the story of interacting
binary stars began with the rediscovery of the variability of Algol
by John Goodricke and the interpretation he proposed for explaining
the regular periodic brightness variations which he found. Over
this long span of time our knowledge about these systems has been
growing, and we have now reached a fairly good understanding of the
structure and behaviour of this interesting group of objects. This
book contains a timely summary of our present knowledge of
interacting binary stars. The chapters have been written by
distinguished scientists who have done relevant research in the
field of interacting binary stars.
This book focuses on the stellar disk evolution and gas disk
turbulence of the most numerous galaxies in the local Universe -
the dwarf galaxies. The "outside-in" disk shrinking mode was
established for a relatively large sample of dwarf galaxies for the
first time, and this is in contrast to the "inside-out" disk growth
mode found for spiral galaxies. Double exponential brightness
profiles also correspond to double exponential stellar mass
profiles for dwarf galaxies, which is again different from most
spiral galaxies. The cool gas distribution in dwarf galaxies was
probed with the spatial power spectra of hydrogen iodide (HI) gas
emission, and provided indirect evidence that inner disks of dwarf
galaxies have proportionally more cool gas than outer disks. The
finding that no correlation exists between gas power spectral
indices and star formation gave important constraints on the
relation between turbulence and star formation in dwarf galaxies.
The large telescope at Meudon has become legendary. When it was
conceived, after 1870, astronomy as a whole was limited to visual
observation. Knowledge of the sky was limited to what one could
see, assisted only by optical means. The large telescopes produced
at this time produced larger images, permitting close-up views: the
Meudon telescope was able to accomplish this perfectly. At Meudon,
which became the Mecca of visual observation, the major planets
were examined in a way that no other telescope had previously been
able to. The telescope monitored the state of their atmospheres and
mapped the appearance of their surfaces. Through the telescope, one
could obtain photographs showing the nuclei of comets, revealing
their very small size, and by using an eyepiece one could measure
the separation of double stars. With a marvellous little
instrument, the polarimeter, the nature of clouds in planetary
atmospheres has been determined, and the type of surface material
identified. Many more results were obtained, while photography,
universally adopted, revolutionized other knowledge about the
world. The sensitive emulsion, combined with large aperture
reflecting telescopes, revealed the deepness and richness of the
cosmos. The vast telescope of Meudon, which was the largest
refracting telescope in Europe, became a legendary instrument and
was symbolic of a new way to practice astronomy. Audouin Dollfus, a
renowned astronomer, describes the great years of the Meudon
telescope. He gives us the entire story of this instrument, from
the birth of the concept that drove Jules Janssen at the end of the
nineteenth century, to the idea that French astronomy could provide
an outstanding telescope which would approach the limits of
technical and industrial resources. The telescope remained
unchanged until 2006, when the first steps toward restoration and
public reopening were taken.
A physicist and an inventor, Jules Janssen (1824-1907) devoted his
life to astronomical research. He spent many years traveling around
the world to observe total Solar eclipses, demonstrating that a new
era of science had just come thanks to the use of both spectroscopy
and photography, and persuading the French Government of the
necessity of founding a new observatory near Paris. He became its
director in 1875. There, at Meudon, he began routine photographic
recordings of the Sun surface and had a big refractor and a big
reflector built. Meanwhile, he also succeeded in building an
Observatory at the summit of Mont-Blanc. The story of this untiring
and stubborn globe-trotter is enriched by extracts of the
unpublished correspondence with his wife. One can thus understand
why Henriette often complained of the solitude in which she was
left by her peripatetic husband: "There are men who leave their
wives for mistresses; you do it for journeys!" ... Basking in the
glow of his success, Janssen was able to undertake the construction
of the great astrophysical observatory of which he had dreamed. It
was at Meudon that he had it built.
In tropical latitudes, monsoons trigger regimes of strong seasonal
rainfall over the continents. Over the West African region, the
rainfall has shown a strong variability from interannual to decadal
time scales. The atmospheric response to global sea surface
temperatures is the leading cause of rainfall variability in the
West African Sahel. This thesis explores changes in the leading
ocean forcing of Sahelian rainfall interannual variability. It
anaylzes the dynamical mechanisms at work to explain the
non-stationary sea surface temperature-forced response of anomalous
rainfall. The underlying multidecadal sea surface temperature
background is raised as a key factor that favors some interannual
teleconnections and inhibits others. Results of this thesis are
relevant for improving the seasonal predictability of summer
rainfall in the Sahel.
This book provides a comprehensive introduction to X-ray and
gamma-ray astronomy. The first part discusses the basic theoretical
and observational topics related to black hole astrophysics; the
optics and the detectors employed in X-ray and gamma-ray astronomy;
and past, present, and future X-ray and gamma-ray missions. The
second part then describes data reduction and analysis, the
statistics used in X-ray and gamma-ray astronomy, and demonstrates
how to write a successful proposal and a scientific paper. Data
reduction in connection with specific X-ray and gamma-ray missions
is covered in the appendices. Presenting the state of the art in
X-ray and gamma-ray astronomy, this is both a valuable textbook for
students and an important reference resource for researchers in the
field.
The Square Kilometre Array (SKA) will provide more than one
order of magnitude improvement in sensitivity compared with any
existing radio telescope over a wavelength range of several hundred
to one, from decametric to microwave wavelengths. It will
revolutionize the study of the most abundant element in the
Universe, hydrogen, from the epoch of reionisation to the
present-day, probing the onset formation period of the very first
stars, will closely scan proto-planets and, through the precision
timing of pulsars, will detect the distortions of space-time due to
gravitational radiation. The SKA is a sensing network spanning 3000
km from its centre and with a collecting area of more than 1 square
kilometre, using technologies of the 21st century. The SKA will
make the study of a wide range of phenomena initially studied at
other wavelengths possible at radio wavelengths, as well as opening
a new discovery window on new phenomena at radio wavelengths.
Symposium 7 of the JENAM 2010 aimed at bringing these diverse
opportunities to the attention of both theoretical and
observational astronomers working at all wavelengths, including the
potential for synergies with other facilities. The meeting
highlighted the scientific potential of the SKA, discussed
scientific priorities and their impact on the design of the SKA,
explored the synergies between the SKA and other next-generation
astronomical facilities in different wavelength domains such as the
ALMA, ELTs, LSST, JWST, GRE, IXO, Gaia and Euclid, and high-energy
facilities (Auger), explored the "cyber-infrastructure" that may
become available for the distribution and distributed analysis of
SKA data."
The essays in Copernirus and his Successors deal both with the
influences on Copernicus, including that of Greek and Arabic
thinkers, and with his own life and attitudes. They also examine
how he was seen by contemporaries and finally describe his
relationship to other scientists, including Galileo, Brahe and
Kepler.
The invention of the semiconductor laser along with silica glass
fiber has enabled an incredible revolution in global communication
infrastructure of direct benefit to all. Development of devices and
system concepts that exploit the same fundamental light-matter
interaction continues. Researchers and technologists are pursuing a
broad range of emerging applications, everything from automobile
collision avoidance to secure quantum key distribution. This book
sets out to summarize key aspects of semiconductor laser device
physics and principles of laser operation. It provides a convenient
reference and essential knowledge to be understood before exploring
more sophisticated device concepts. The contents serve as a
foundation for scientists and engineers, without the need to invest
in specialized detailed study. Supplementary material in the form
of MATLAB is available for numerically generated figures.
This book provides a general introduction to the rapidly developing
astrophysical frontier of stellar tidal disruption, but also
details original thesis research on the subject. This work has
shown that recoiling black holes can disrupt stars far outside a
galactic nucleus, errors in the traditional literature have
strongly overestimated the maximum luminosity of "deeply plunging"
tidal disruptions, the precession of transient accretion disks can
encode the spins of supermassive black holes, and much more. This
work is based on but differs from the original thesis that was
formally defended at Harvard, which received both the Roger Doxsey
Award and the Chambliss Astronomy Achievement Student Award from
the American Astronomical Society.
How does it happen that billions of stars can cooperate to produce
the beautiful spirals that characterize so many galaxies, including
ours? This book reviews the history behind the discovery of spiral
galaxies and the problems faced when trying to explain the
existence of spiral structure within them. In the book, subjects
such as galaxy morphology and structure are addressed as well as
several models for spiral structure. The evidence in favor or
against these models is discussed. The book ends by discussing how
spiral structure can be used as a proxy for other properties of
spiral galaxies, such as their dark matter content and their
central supermassive black hole masses, and why this is important.
Translated from the original French and annotated with figures,
historical maps and commentary from the translators, this work is
Jean-Charles Houzeau's account of his escape from Texas during the
American Civil War. Houzeau was a Belgian astronomer who worked a
couple of years as assistant astronomer at the Brussels
Observatory, but eventually moved to the United States. He was
living as a frontierman in Texas when the Civil War broke out, and
because he took an abolitionist stance and helped slaves escape, he
was forced to flee to Mexico, from where he sailed to New Orleans
on board of a US military vessel. Originally titled La terreur
blanche au Texas et mon 'evasion, Houzeau captured the details of
his escape in 1862.The editors, an astronomer and a French language
teacher, have added supplementary material to give the readers more
depth and historical context to the story.
A pocket-style edition based on the New York Times bestseller A
Brief Welcome to the Universe offers a breathtaking tour of the
cosmos, from planets, stars, and galaxies to black holes and time
loops. Bestselling authors and acclaimed astrophysicists Neil
deGrasse Tyson, Michael A. Strauss, and J. Richard Gott take
readers on an unforgettable journey of exploration to reveal how
our universe actually works. Propelling you from our home solar
system to the outermost frontiers of space, this book builds your
cosmic insight and perspective through a marvelously entertaining
narrative. How do stars live and die? What are the prospects of
intelligent life elsewhere in the universe? How did the universe
begin? Why is it expanding and accelerating? Is our universe alone
or part of an infinite multiverse? Exploring these and many other
questions, this pocket-friendly book is your passport into the
wonders of our evolving cosmos.
Nature is characterized by a number of physical laws and
fundamental dimensionless couplings. These determine the properties
of our physical universe, from the size of atoms, cells and
mountains to the ultimate fate of the universe as a whole. Yet it
is rather remarkable how little we know about them. The constancy
of physical laws is one of the cornerstones of the scientific
research method, but for fundamental couplings this is an
assumption with no other justification than a historical
assumption. There is no 'theory of constants' describing their role
in the underlying theories and how they relate to one another or
how many of them are truly fundamental. Studying the behaviour of
these quantities throughout the history of the universe is an
effective way to probe fundamental physics. This explains why the
ESA and ESO include varying fundamental constants among their key
science drivers for the next generation of facilities. This
symposium discussed the state-of-the-art in the field, as well as
the key developments anticipated for the coming years.
The zodiac was first clearly defined by the Babylonians some 2500
years ago, but until recently the basis of this original definition
remained unknown. This zodiac of the Babylonians, known as the
sidereal zodiac because it is specified in direct relation to the
stars (Latin sideris, 'starry'), was used for centuries throughout
the ancient world, all the way to India, and must be distinguished
from the tropical zodiac in widespread use by astrologers in the
West today, which was introduced only in the middle of the second
century A.D. by the Greek astronomer Claudius Ptolemy. Such was
Ptolemy's influence, however, that the tropical zodiac gained
prominence and, except for its survival (in a variant form) in
India, knowledge of the sidereal zodiac was lost. In this thrilling
study of the history of the zodiac, first submitted in 2004 as his
Ph.D. thesis, Robert Powell rescues the the sidereal zodiac from
the dusts of time, tracing it back to the Babylonians in the
sixth/fifth centuries B.C. The implications of this discovery-among
them the restitution of the sideral zodiac to its rightful place at
the heart of astrology-are immense, they key point being that the
signs of the sidereal zodiac, each thirty degrees long, coincide
closely with the twelve astronomical constellations of the same
name, whereas the signs of the tropical zodiac, since they are
defined in relation to the vernal point, now have no direct
relationship to the corresponding zodiacal constellations, owing to
the precession of the equinoxes.This revolutionary history of the
zodiac includes chapters on the Egyptian decans and the Hindu
nakshatras, showing how these sidereal divisions, which originated
in Egypt and India, are related to the original Babylonian zodiac.
It also sheds light on the controversy surrounding the 'zodiac
question' (tropical vs. sidereal), illuminating the history of the
tropical zodiac-showing that originally it was not a zodiac at all,
but a calendar for describing the course of the seasons This book,
the fruit of thirty years of research, is intended not only for
scholars but for general readers as well, and offers the clearest
and most comprehensive study of the history of the zodiac yet
published.
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