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Books > Science & Mathematics > Astronomy, space & time > Cosmology & the universe
Methods and Materials for Remote Sensing: Infrared Photo-Detectors,
Radiometers and Arrays presents the basic principles and the
guidelines for the design of IR and microwave radiometers intended
for the detection of weak electromagnetic signals in a noisy
background.
Significant attention is paid in this book to the discussion of the
origin of the noises and consideration of the physical factors
limiting the sensitivity of photo sensors. The physico-chemical
properties of narrow-band semiconductors, which are the basic
photosensitive materials for the microwave and IR radiometry, are
discussed. Also described are the methods for growing the single
crystals, epitaxial films and arrays from solid solutions of these
compounds for the application in photosensitive detectors.
The main goal of Methods and Materials for Remote Sensing: Infrared
Photo-Detectors, Radiometers and Arrays is to present the entire
material from the unifying physical viewpoint, which will be
helpful for the designers of photo-detecting devices, and
professionals contributing in various areas of remote sensing.
The goal of IAU Symposium 359 on 'Galaxy Evolution and Feedback
across Different Environments' (GALFEED) was to bring together the
active galactic nuclei (AGN) and galaxy evolution scientific
communities. The AGN phase occurs in most galaxies and critically
influences their evolution, so it is important to study the two
processes together and for researchers, in both topics, to learn
from one another. They ask key questions such as: How do galaxies
acquire their gas and how efficiently is it transformed into stars?
How is the supermassive black hole in a galaxy center fuelled to
become an AGN? What is the main physical mechanism that quenches
star formation? How powerful are the stellar and AGN feedback
processes in regulating galaxy evolution? And what is the role of
the environment on galaxy evolution and AGN triggering? Astronomers
engage in these discussions spanning from early galaxies to the
present day.
Cosmology has become a very active research field in the last
decades thanks to the impressing improvement of our observational
techniques which have led to landmark discoveries such as the
accelerated expansion of the universe, and have put physicists in
front of new mysteries to unveil, such as the quest after the
nature of dark matter and dark energy. These notes offer an
approach to cosmology, covering fundamental topics in the field:
the expansion of the universe, the thermal history, the evolution
of small cosmological perturbations and the anisotropies in the
cosmic microwave background radiation. Some extra topics are
presented in the penultimate chapter and some standard results of
physics and mathematics are available in the last chapter in order
to provide a self-contained treatment. These notes offer an
in-depth account of the above-mentioned topics and are aimed to
graduate students who want to build an expertise in cosmology.
Every night, above our heads, a drama of epic proportions is
playing out. Diamond planets, zombie stars, black holes heavier
than a billion Suns. The cast of characters is extraordinary, and
each one has its own incredible story to tell. We once thought of
our Earth as unique, but we have now discovered thousands of alien
planets, and that's barely a fraction of the worlds that are out
there. And there are more stars in the Universe than grains of sand
on every planet in the Solar System. But amid all this vastness,
the Milky Way Galaxy, our Sun and the Earth are home to the only
known life in the Universe - at least for now. With a foreword from
Professor Brian Cox, and access to all the latest stunning NASA
photography, Andrew Cohen takes readers on a voyage of discovery,
via the probes and telescopes exploring the outer reaches of our
galaxy, revealing how it was formed and how it will inevitably be
destroyed by the enigmatic black hole at its heart. And beyond our
galaxy, the expanding Universe, which holds clues to the biggest
mystery of all - how did it all begin? We now know more about those
first moments of existence than we ever thought possible, and
hidden in this story of how it all began are the clues to the fate
of the Universe itself and everything in it.
Introduction to Cosmology provides a rare combination of a solid
foundation of the core physical concepts of cosmology and the most
recent astronomical observations. The text is designed for advanced
undergraduates or beginning graduate students and assumes no prior
knowledge of general relativity. An emphasis is placed on
developing the students' physical insight rather than losing them
with complex math. An approachable writing style and wealth of
fresh and imaginative analogies from "everyday" physics are used to
make the concepts of cosmology more accessible.
Don Handelman's groundbreaking work in anthropology is showcased in
this collection of his most powerful essays, edited by Matan
Shapiro and Jackie Feldman. The book looks at the intellectual and
spiritual roots of Handelman's initiation into anthropology; his
work on ritual and on "bureaucratic logic"; analyses of cosmology;
and innovative essays on Anthropology and Deleuzian thinking.
Handelman reconsiders his theory of the forming of form and how
this relates to a new theory of the dynamics of time. This will be
the definitive collection of articles by one of the most important
anthropologists of the late 20th Century.
This monograph describes the different formulations of Einstein's
General Theory of Relativity. Unlike traditional treatments,
Cartan's geometry of fibre bundles and differential forms is placed
at the forefront, and a detailed review of the relevant
differential geometry is presented. Particular emphasis is given to
general relativity in 4D space-time, in which the concepts of
chirality and self-duality begin to play a key role. Associated
chiral formulations are catalogued, and shown to lead to many
practical simplifications. The book develops the chiral
gravitational perturbation theory, in which the spinor formalism
plays a central role. The book also presents in detail the twistor
description of gravity, as well as its generalisation based on
geometry of 3-forms in seven dimensions. Giving valuable insight
into the very nature of gravity, this book joins our highly
prestigious Cambridge Monographs in Mathematical Physics series. It
will interest graduate students and researchers in the fields of
theoretical physics and differential geometry.
New York Times bestseller Journey into the universe through the
most spectacular sights in astronomy in stereoscopic 3D Welcome to
the Universe in 3D takes you on a grand tour of the observable
universe, guiding you through the most spectacular sights in the
cosmos-in breathtaking 3D. Presenting a rich array of stereoscopic
color images, which can be viewed in 3D using a special stereo
viewer that folds easily out of the cover of the book, this book
reveals your cosmic environment as you have never seen it before.
Astronomy is the story of how humankind's perception of the
two-dimensional dome of the sky evolved into a far deeper
comprehension of an expanding three-dimensional cosmos. This book
invites you to take part in this story by exploring the universe in
depth, as revealed by cutting-edge astronomical research and
observations. You will journey from the Moon through the solar
system, out to exoplanets, distant nebulas, and galaxy clusters,
until you finally reach the cosmic microwave background radiation
(or CMB), the most distant light we can observe. The distances to
these celestial wonders range from 1.3 light-seconds to 13.8
billion light-years. Along the way, the authors explain the
fascinating features of what you are seeing, including how the 3D
images were made using the same technique that early astronomers
devised to measure distances to objects in space. The dramatic 3D
images in this one-of-a-kind book will astonish you, extending your
vision out to the farthest reaches of the universe. You will never
look up into the night sky the same way again.
A self-contained text, systematically presenting the determination
and classification of exact solutions in three-dimensional Einstein
gravity. This book explores the theoretical framework and general
physical and geometrical characteristics of each class of
solutions, and includes information on the researchers responsible
for their discovery. Beginning with the physical character of the
solutions, these are identified and ordered on the basis of their
geometrical invariant properties, symmetries, and algebraic
classifications, or from the standpoint of their physical nature,
for example electrodynamic fields, fluid, scalar field, or dilaton.
Consequently, this text serves as a thorough catalogue on 2+1 exact
solutions to the Einstein equations coupled to matter and fields.
The solutions are also examined from different perspectives,
enabling a conceptual bridge between exact solutions of three- and
four-dimensional gravities, and therefore providing graduates and
researchers with an invaluable resource on this important topic in
gravitational physics. Including contributions by David Chow,
Christopher N. Pope and Ergin Sezgin (chapters 16-19).
'A fascinating exploration of how we learned what matter really is,
and the journey matter takes from the Big Bang, through exploding
stars, ultimately to you and me.' - Sean Carroll, author of
Something Deeply Hidden 'If you wish to make an apple pie from
scratch, you must first invent the universe.' - Carl Sagan We
probably all have a vague idea of how to make an apple pie: mix
flour and butter, throw in some apples and you're probably most of
the way there, right? Think again. Making an apple pie from scratch
requires ingredients that definitely aren't available in the
supermarket, ovens that can reach temperatures of trillions of
degrees, and a preparation time of 13.8 billion years. Inspired by
Sagan's famous line, Harry Cliff ventures out in search of the
ultimate apple pie recipe, tracing the ingredients of our universe
through the hearts of dying stars and back in time to a tiny
fraction of a second after our universe began. Along the way, he
confronts some really big questions: What is matter really made of?
How does the stuff around us escape annihilation in the fearsome
heat of the Big Bang? And will we ever be able to understand the
very first moments of our universe? In pursuit of answers, Cliff
ventures to the largest underground research facility in the world,
deep beneath Italy's Gran Sasso mountains, where scientists gaze
into the heart of the Sun using the most elusive of particles, the
ghostly neutrino. He visits CERN in Switzerland to explore the
'Antimatter Factory' where this stuff of science fiction is
manufactured daily (and we're close to knowing whether it falls
upwards). And he reveals what the latest data from the Large Hadron
Collider may be telling us about the fundamental ingredients of
matter. Along the way, Cliff illuminates the history of physics,
chemistry, and astronomy that brought us to our present
understanding of the world, while offering readers a front-row seat
to one of the most dramatic intellectual journeys human beings have
ever embarked on. A transfixing deep dive into origins of our
world, How to Make an Apple Pie from Scratch doesn't just put the
makeup of our universe under the microscope, but the awe-inspiring,
improbable fact that it exists at all.
Quantum cosmology has gradually emerged as the focus of devoted
research, mostly within the second half of last century. As we
entered the 21st century, the subject is still very much alive. The
outcome of results and templates for investigation have been
enlarged, some very recent and fascinating. Hence this book, where
the authors bequeath some of their views, as they believe this
current century is the one where quantum cosmology will be fully
accomplished.Though some aspects are not discussed (namely,
supersymmetry or loop structures), there are perhaps a set of
challenges that in the authors' opinion remain, some since the dawn
of quantum mechanics and applications to cosmology. Others could
have been selected, at the readers' discretion and opinion. The
authors put herewith a chart and directions to explore, some of
which they have worked on or aimed to work more, in the twilight of
their current efforts. Their confidence is that someone will follow
in their trails, venturing in discovering the proper answer, by
being able to formulate the right questions beforehand. The
authors' shared foresight is that such discoveries, from those
formulations, will be attained upon endorsing the routes within the
challenges herewith indicated.
'Cosmic Paradoxes' was an outcome of a Conference-Summer Course on
'Astrophysical Cosmology: Frontier Questions' held at El Escorial,
Madrid, on August 16-19, 1993. The Scientific Directors were John C
Mather, Director of NASA's COBE (Cosmic Background Radiation
Explorer), and Jose M Torroja, Secretary of the Spanish Academy of
Sciences. Julio A Gonzalo, UAM, was in charge of coordinating the
event. The first speaker was Ralph A Alpher, one of the pioneers
who predicted very early the CBR (Cosmic Background Radiation). The
CBR was observed by A Penzias and R Wilson, Bell Telephone Labs, in
1965. Thereafter it was measured with unprecedented precision by
the COBE in 1989, characterizing the Planck spectral distribution
of the CBR (J C Mather) and detecting its minute anisotropies (G
Smoot). In 2003 the WMAP, NASA's satellite successor of the COBE,
confirmed COBE's results, and gave an excellent quantitative
estimate of the 'age' of the universe as 13.7 +/- 0.2 Gyrs, in
support of the Big Bang theory of cosmic origins.In the Third
Edition of this book, almost coincident with the launch reports of
NASA's James Webb Space Telescope (JWST), includes recent work
discussing evidence in favor of an open finite universe. A further
discussion of the Heisenberg-Lemaitre time (Appendix D) takes into
consideration that the cosmic expansion velocity at very early
times is R(yHL) c and reviews in more detail the thermal history of
the universe.
'Cosmic Paradoxes' was an outcome of a Conference-Summer Course on
'Astrophysical Cosmology: Frontier Questions' held at El Escorial,
Madrid, on August 16-19, 1993. The Scientific Directors were John C
Mather, Director of NASA's COBE (Cosmic Background Radiation
Explorer), and Jose M Torroja, Secretary of the Spanish Academy of
Sciences. Julio A Gonzalo, UAM, was in charge of coordinating the
event. The first speaker was Ralph A Alpher, one of the pioneers
who predicted very early the CBR (Cosmic Background Radiation). The
CBR was observed by A Penzias and R Wilson, Bell Telephone Labs, in
1965. Thereafter it was measured with unprecedented precision by
the COBE in 1989, characterizing the Planck spectral distribution
of the CBR (J C Mather) and detecting its minute anisotropies (G
Smoot). In 2003 the WMAP, NASA's satellite successor of the COBE,
confirmed COBE's results, and gave an excellent quantitative
estimate of the 'age' of the universe as 13.7 +/- 0.2 Gyrs, in
support of the Big Bang theory of cosmic origins.In the Third
Edition of this book, almost coincident with the launch reports of
NASA's James Webb Space Telescope (JWST), includes recent work
discussing evidence in favor of an open finite universe. A further
discussion of the Heisenberg-Lemaitre time (Appendix D) takes into
consideration that the cosmic expansion velocity at very early
times is R(yHL) c and reviews in more detail the thermal history of
the universe.
In antiquity living beings are inextricably linked to the cosmos as
a whole. Ancient biology and cosmology depend upon one another and
therefore a complete understanding of one requires a full account
of the other. This volume addresses many philosophical issues that
arise from this double relation. Does the cosmos have a soul of its
own? Why? Is either of these two disciplines more basic than the
other, or are they at the same explanatory level? What is the
relationship between living things and the cosmos as a whole? If
the cosmos is an animate intelligent being, what is the nature of
its thoughts and actions? How do these relate to our own thoughts
and actions? Do they pose a threat to our autonomy as subjects and
agents? And what is the place of zoogony in cosmogony? A
distinguished international team of contributors provides original
essays discussing these questions.
Topological defects formed at symmetry-breaking phase transitions
play an important role in many different fields of physics. They
appear in many condensed-matter systems at low temperature;
examples include vortices in superfluid helium-4, a rich variety of
defects in helium-3, quantized mag netic flux tubes in type-II
superconductors, and disclination lines and other defects in liquid
crystals. In cosmology, unified gauge theories of particle
interactions suggest a sequence of phase transitions in the very
early uni verse some of which may lead to defect formation. In
astrophysics, defects play an important role in the dynamics of
neutron stars. In 1997 the European Science Foundation started the
scientific network "Topological defects" headed by Tom Kibble. This
network has provided us with a unique opportunity of establishing a
collaboration between the representatives of these very different
branches of modern physics. The NATO-ASI (Advanced Study
Institute), held in Les Houches in February 1999 thanks to the
support of the Scientific Division of NATO, the European Science
Foundation and the CNRS, represents a key event of this ESF
network. It brought together participants from widely different
fields, with diverse expertise and vocabulary, fostering the
exchange of ideas. The lectures given by particle physicists,
cosmologists and condensed matter physicists are the result of the
fruitful collaborations established since 1997 between groups in
several European countries and in the U.S.A."
The growth of cosmology into a precision science represents one of
the most remarkable stories of the past century. Much has been
written chronicling this development, but rarely has any of it
focused on the most critical element of this work-the cosmic
spacetime itself. Addressing this lacuna is the principal focus of
this book, documenting the growing body of evidence compelling
us-not only to use this famous solution to Einstein's equations in
order to refine the current paradigm, but-to probe its foundation
at a much deeper level. Its excursion from the smallest to largest
possible scales insightfully reveals an emerging link between the
Universe we behold and the established tenets of our most
fundamental physical theories. Key Features: Uncovers the critical
link between the Local Flatness Theorem in general relativity and
the symmetries informing the spacetime's metric coefficients
Develops a physical explanation for some of the most unpalatable
coincidences in cosmology Provides a sober assessment of the
horizon problems precluding our full understanding of the early
Universe Reveals a possible explanation for the origin of rest-mass
energy in Einstein's theory In spite of its technical layout, this
book does not shy away from introducing the principal players who
have made the most enduring contributions to this field. Anyone
with a graduate level foundation in physics and astronomy will be
able to easily follow its contents.
Translations of the Yi jing into western languages have been biased towards the yili ('meaning and pattern') tradition, whereas studies of the xiangshu ('image and number') tradition - which takes as its point of departure the imagery and numerology associated with divination and its hexagrams, trigrams, lines, and related charts and diagrams - has remained relatively unexplored. This major new reference work is organised as a Chinese-English encyclopedia, arranged alphabetically according to the pinyin romanisation, with Chinese characters appended. A character index as well as an English index is included. The entries are of two kinds: technical terms and various other concepts related to the 'image and number' tradition, and bio-bibliographical information on Chinese Yi jing scholars. Each entry in the former category has a brief explanation that includes references to the origins of the term, cross-references, and a reference to an entry giving a more comprehensive treatment of the subject.
Everything you ever wanted to know about the universe - and our
place within it - in one mind-expanding and highly accessible book.
___ What happens inside black holes? Is dark matter real? Could we
do anything to prevent being wiped out by an approaching asteroid?
Will our explorations of our neighbouring planets reveal life or a
new place to settle? What can observations of stars reveal about
our origins - and our future? Professor Andrew Newsam draws on his
vast expertise to show us what's going on beyond the limits of our
planet, from our solar system to distant galaxies - and what this
tells us about our own place in this vast expanse called 'the
Universe'. From glowing nebulae to the sweeping majesty of the
Milky Way, Everything You Ever Wanted to Know About the Universe
will spark your curiosity and help you make sense of the amazing
discoveries and fascinating mysteries of the cosmos.
'Unpatronizing, direct and comprehensible.' BBC Sky at Night
Magazine
Gravitational lensing is a consequence of general relativity, where
the gravitational force due to a massive object bends the paths of
light originating from distant objects lying behind it. Using very
little general relativity and no higher level mathematics, this
text presents the basics of gravitational lensing, focusing on the
equations needed to understand the phenomena. It then applies them
to a diverse set of topics, including multiply imaged objects, time
delays, extrasolar planets, microlensing, cluster masses, galaxy
shape measurements, cosmic shear, and lensing of the cosmic
microwave background. This approach allows undergraduate students
and others to get quickly up to speed on the basics and the
important issues. The text will be especially relevant as large
surveys such as LSST and Euclid begin to dominate the astronomical
landscape. Designed for a one semester course, it is accessible to
anyone with two years of undergraduate physics background.
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