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This third edition of The Physics of the Interstellar Medium
continues to introduce advanced undergraduates to the fundamental
processes and the wide range of disciplines needed to understand
observations of the interstellar medium and its role in the Milky
Way galaxy. The book is suitable for undergraduate students
studying physics, astronomy, and astrophysics. The book also
provides concise and straightforward discussions of interstellar
physics and chemistry that are useful for more experienced readers.
The book leads readers through the range of physical processes
operating on both large and small scales that occur in the
interstellar medium. It explores the relationship between the
dusty, tenuous gas in interstellar space and the formation of stars
and planets. This new edition also describes exciting developments
in the field of astrochemistry and its interaction with
interstellar physics, and the roles played by interstellar dust
grains in interstellar physics and chemistry. Simple models in each
chapter, together with problems at the end of each chapter,
encompass interdisciplinary applications in atomic, molecular,
solid state, and surface physics, and gas dynamics. This popular
textbook provides a useful overview and grounding in the study of
the interstellar medium and brings insight into many aspects of
physics. Features An authoritative textbook in the field at this
academic level Provides a wide introduction to the interstellar
medium whilst remaining accessible and concise Revised throughout,
presenting a modern understanding of the interstellar medium
This third edition of The Physics of the Interstellar Medium
continues to introduce advanced undergraduates to the fundamental
processes and the wide range of disciplines needed to understand
observations of the interstellar medium and its role in the Milky
Way galaxy. The book is suitable for undergraduate students
studying physics, astronomy, and astrophysics. The book also
provides concise and straightforward discussions of interstellar
physics and chemistry that are useful for more experienced readers.
The book leads readers through the range of physical processes
operating on both large and small scales that occur in the
interstellar medium. It explores the relationship between the
dusty, tenuous gas in interstellar space and the formation of stars
and planets. This new edition also describes exciting developments
in the field of astrochemistry and its interaction with
interstellar physics, and the roles played by interstellar dust
grains in interstellar physics and chemistry. Simple models in each
chapter, together with problems at the end of each chapter,
encompass interdisciplinary applications in atomic, molecular,
solid state, and surface physics, and gas dynamics. This popular
textbook provides a useful overview and grounding in the study of
the interstellar medium and brings insight into many aspects of
physics. Features An authoritative textbook in the field at this
academic level Provides a wide introduction to the interstellar
medium whilst remaining accessible and concise Revised throughout,
presenting a modern understanding of the interstellar medium
''An atteJDpt has been made to cOll1PlJte the numbers of certain
JI10lecules in interstellar space , . . . . A search for the bands
of CH, O/{, DR, en and C2 would appear to be proIDising" P Swings
and L Rosenfeld Astrophysical Journal 86,483(1937) This may have
been the first attempt at modelling interstellar chemistry. As with
models today, the methods used lacked reliability, but the
speculation was impressive! Mark Twain might well have said of this
infant subject "One gets such wholesale returns of conjecture out
of such a trifling investment of fact". The detection of
unidentified lines around the period that Swings and Rosenfeld were
writing provoked much interest, but even the most optimistic
speculator could hardly have imagined developments which would
occur during the next 50 years. By 1987 about 70 varieties of
molecule had been identified in the interstellar and circumstellar
regions, They range in complexity from simple diatomics such as H2
and CO to such species as ethanol C2HeDH, acetone (CHs)2CO, and the
largest interstellar molecule detected so far, cyano-penta
acetylene HC11N, The study of these molecules in astronomy has
developed enormously, especially over the last 20 years, and is now
codified in the new subject of astrochemistry, That such a variety
of chemical species should exist in tenuous regions of the Galaxy
is fascinating.
''An atteJDpt has been made to cOll1PlJte the numbers of certain
JI10lecules in interstellar space , . . . . A search for the bands
of CH, O/{, DR, en and C2 would appear to be proIDising" P Swings
and L Rosenfeld Astrophysical Journal 86,483(1937) This may have
been the first attempt at modelling interstellar chemistry. As with
models today, the methods used lacked reliability, but the
speculation was impressive! Mark Twain might well have said of this
infant subject "One gets such wholesale returns of conjecture out
of such a trifling investment of fact". The detection of
unidentified lines around the period that Swings and Rosenfeld were
writing provoked much interest, but even the most optimistic
speculator could hardly have imagined developments which would
occur during the next 50 years. By 1987 about 70 varieties of
molecule had been identified in the interstellar and circumstellar
regions, They range in complexity from simple diatomics such as H2
and CO to such species as ethanol C2HeDH, acetone (CHs)2CO, and the
largest interstellar molecule detected so far, cyano-penta
acetylene HC11N, The study of these molecules in astronomy has
developed enormously, especially over the last 20 years, and is now
codified in the new subject of astrochemistry, That such a variety
of chemical species should exist in tenuous regions of the Galaxy
is fascinating.
This book describes community ophthalmology professionals in South
Asia who demonstrate social entrepreneurship in global health to
help the rural poor. Their innovations contested economic and
scientific norms, and spread from India and Nepal outwards to other
countries in Africa and Asia, as well as the United States,
Australia, and Finland. This feminist postcolonial global
ethnography illustrates how these innovations have resulted in dual
socio-technical systems to solve the problem of avoidable
blindness. Policymakers and activists might use this example of how
to avoid Schumacher's critique of low labor, large scale and
implement Gandhi's philosophy of good for all.
This book describes community ophthalmology professionals in South
Asia who demonstrate social entrepreneurship in global health to
help the rural poor. Their innovations contested economic and
scientific norms, and spread from India and Nepal outwards to other
countries in Africa and Asia, as well as the United States,
Australia, and Finland. This feminist postcolonial global
ethnography illustrates how these innovations have resulted in dual
socio-technical systems to solve the problem of avoidable
blindness. Policymakers and activists might use this example of how
to avoid Schumacher's critique of low labor, large scale and
implement Gandhi's philosophy of good for all.
Simple chemistry governs a host of the exotic objects that populate
our cosmos. For example, molecules in the early Universe acted as
natural temperature regulators, keeping the primordial gas cool
and, in turn, allowing galaxies and stars to form. What are the
tools of the trade for the cosmic chemist and what can they teach
us about the Universe we live in? These are the questions answered
in this engaging and informative guide--the first book for
nonspecialists on molecular astrophysics. In clear, nontechnical
terms, and without formal mathematics, Hartquist and Williams show
how to study and understand the behavior of molecules in a host of
astronomical situations. Readers will learn about the secretive
formation of stars deep within interstellar clouds; the origin of
our own solar system; the cataclysmic deaths of many massive stars
that explode as supernovae; and the hearts of active galactic
nuclei, the most powerful objects in the universe. This book
provides an accessible introduction to a wealth of astrophysics,
and an understanding of how cosmic chemistry allows the
investigation of many of the most exciting questions concerning
astronomy today.
Molecules in the early Universe acted as natural temperature
regulators, keeping the primordial gas cool and, in turn, allowing
galaxies and stars to be born. Even now, such similarly simple
chemistry continues to control a wide variety of the exotic objects
that populate our cosmos. What are the tools of the trade for the
cosmic chemist? What can they teach us about the Universe we live
in? These are the questions answered in this engaging and
informative guide, The Chemically Controlled Cosmos. In clear,
non-technical terms, and without formal mathematics, we learn how
to study and understand the behaviour of molecules in a host of
astronomical situations. We study the secretive formation of stars
deep within interstellar clouds, the origin of our own Solar
System, the cataclysmic deaths of many massive stars that explode
as supernovae, and the hearts of active galactic nuclei, the most
powerful objects in the Universe. We are given an accessible
introduction to a wealth of astrophysics, and an understanding of
how cosmic chemistry facilitates the investigation of many of the
most exciting questions concerning astronomy today.
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