Chemistry as a Diagnostic of Star Formation

Chemistry as a Diagnostic of Star Formation PDF Author: National Research Council Canada
Publisher: NRC Research Press
ISBN: 9780660190891
Category : Science
Languages : en
Pages : 510

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Book Description
This publication contains presentations & poster papers of a conference that focussed on the many aspects of astrochemistry related to star formation. Topics covered include: the next generation of telescopes & detectors; studies of fundamental chemical processes both in the lab & in the field; an exploration of the connections between chemistry & physics in star-forming regions; the unique problems of high-mass star formation; the formation of hydrogen; deuterated molecules; molecular depletion; observations & modelling of embedded protostars; accretion disks & circumstellar disks; interstellar dust; and the chemistry, physical conditions, & structure of dark clouds. Includes indexes of subjects, authors, & astronomical objects.

Chemistry as a Diagnostic of Star Formation

Chemistry as a Diagnostic of Star Formation PDF Author: National Research Council Canada
Publisher: NRC Research Press
ISBN: 9780660190891
Category : Science
Languages : en
Pages : 510

Get Book Here

Book Description
This publication contains presentations & poster papers of a conference that focussed on the many aspects of astrochemistry related to star formation. Topics covered include: the next generation of telescopes & detectors; studies of fundamental chemical processes both in the lab & in the field; an exploration of the connections between chemistry & physics in star-forming regions; the unique problems of high-mass star formation; the formation of hydrogen; deuterated molecules; molecular depletion; observations & modelling of embedded protostars; accretion disks & circumstellar disks; interstellar dust; and the chemistry, physical conditions, & structure of dark clouds. Includes indexes of subjects, authors, & astronomical objects.

A Few Tens au Scale Physical and Chemical Structures Around Young Low-Mass Protostars

A Few Tens au Scale Physical and Chemical Structures Around Young Low-Mass Protostars PDF Author: Yoko Oya
Publisher: Springer Nature
ISBN: 9811917086
Category : Science
Languages : en
Pages : 219

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Book Description
This book characterizes the kinematic and chemical structures of disk-forming regions around low-mass protostellar sources and their interplay based on Atacama Large Millimeter/submillimeter Array (ALMA) observations. It describes the chemical evolution of molecules formed in an interstellar gas using the ALMA observations of 5 Sun-like protostars at a spatial resolution of a few tens au scale, which unveils the physical mechanism of star and planetary formation. The book reviews the author’s successful works, focusing on two key findings: (i) A drastic change in the chemical composition of the gas around the centrifugal barrier of the infalling-rotating envelopes, and (ii) the chemical composition in the disk-forming regions, which varies from source to source depending on the chemical characteristics of the parent molecular cloud. These findings are based on the fine characterization of physical structures based on careful kinematic analyses. An additional attraction is the inclusion of the skillful reviews of ALMA observatory and its observation and physical models to describe the observed gas structure.

Dynamical Astrochemistry

Dynamical Astrochemistry PDF Author: David A Williams
Publisher: Royal Society of Chemistry
ISBN: 1788012704
Category : Science
Languages : en
Pages : 304

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Book Description
Astrochemistry is a well-established interdisciplinary subject and the methods for describing time-dependent chemistry in static or slowly-changing regions of interstellar space have been well-developed over many years. Existing astrochemical books normally describe the subject in terms of chemistry in static or slowly-varying astronomical situations but the most significant astronomical regions are those in which the physical conditions change on timescales that are comparable to or shorter than chemical timescales. Written by leading experts in this area, this is the first book specifically devoted to the astrochemistry of dynamically evolving astronomical regions. It provides a comprehensive description of this important area of science, stressing in particular the methods that have been developed for specific purposes. It will be of interest to researchers in astrochemistry, including both chemists and physicists and could form the basis of a postgraduate course for research students in chemistry and physics.

The Molecular Astrophysics of Stars and Galaxies

The Molecular Astrophysics of Stars and Galaxies PDF Author: T. W. Hartquist
Publisher: Oxford University Press
ISBN: 9780198501589
Category : Galaxies
Languages : en
Pages : 562

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Book Description
This book provides a comprehensive survey of modern molecular astrophysics. It includes an introduction to molecular spectroscopy and then addresses the main areas of current molecular astrophysics, including galaxy formation, star forming regions, mass loss from young as well as highlyevolved stars and supernovae, starburst galaxies plus the tori and discs near the central engines of active galactic nuclei. All chapters have been written by invited authors who are acknowledged experts in their fields. The thorough editorial process has ensured a uniformly high standard ofexposition and a coherent style. The book is unique in giving a detailed view of its wide-ranging subject. It will provide the standard introduction for research students in molecular astrophysics. The book will be read by research astronomers and astrophysicists who wish to broaden the basis oftheir knowledge or are moving their activities into this burgeoning field. It will enable chemists to learn the astrophysics most related to chemistry as well as instruct physicists about the molecular processes most important in astronomy.

Zooming in

Zooming in PDF Author: Regina von Berlepsch
Publisher: John Wiley & Sons
ISBN: 3527644393
Category : Science
Languages : en
Pages : 270

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Book Description
High resolution is a key element in research in astronomy and cosmology. Advances in instrumentation and new methods are enabling us to constantly make new exciting discoveries, and progress in theoretical modelling allows us to gain a deeper understanding of cosmic physics. One example of this progress in instrumentation and observing strategy have made possible the discovery of a rich population of low-mass planets orbiting solar-type stars (Michel Mayor et al., Karl Schwarzschild Lecture 2010). This 23rd volume in the series Reviews of Modern Astronomy contains 14 invited reviews and highlight contributions presented during the 2010 annual meeting of the Astronomical Society on the topic "Zooming in: The cosmos at high resolution", held in Bonn, Germany, in September 2010.

Near-Field Cosmology with Dwarf Elliptical Galaxies (IAU C198)

Near-Field Cosmology with Dwarf Elliptical Galaxies (IAU C198) PDF Author: International Astronomical Union. Colloquium
Publisher: Cambridge University Press
ISBN: 9780521852043
Category : Science
Languages : en
Pages : 456

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Book Description
Proceedings of IAUC 198, covering important issues related to near-field cosmology with dwarf elliptical galaxies.

Transactions of the International Astronomical Union

Transactions of the International Astronomical Union PDF Author: International Astronomical Union
Publisher:
ISBN:
Category : Astronomy
Languages : en
Pages : 480

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Book Description


Astrophysics in the Next Decade

Astrophysics in the Next Decade PDF Author: Harley A. Thronson
Publisher: Springer Science & Business Media
ISBN: 1402094574
Category : Science
Languages : en
Pages : 523

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Book Description
NASA’s James Webb Space Telescope (JWST), planned for operation in about five years, will have the capability to investigate – and answer – some of the most challenging questions in astronomy. Although motivated and designed to study the very early Universe, the performance of the observatory’s instruments over a very wide wavelength range will allow the world’s scientific community unequaled ability to study cosmic phenomena as diverse as small bodies in the Solar System and the formation of galaxies. As part of preparation to use JWST, a conference was held in Tucson, Arizona in 2007 that brought together astronomers from around the world to discuss the mission, other major facilities that will operate in the coming decade, and major scientific goals for them. This book is a compilation of those presentations by some of the leading researchers from all branches of astronomy. This book also includes a “pre-history” of JWST, describing the lengthy process and some of the key individuals that initiated early work on the concepts that would evolve to become the premier space observatory of the next decade.

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 1572

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Book Description


Case Studies in Star Formation

Case Studies in Star Formation PDF Author: Duncan MacKay
Publisher: Cambridge University Press
ISBN: 1009277456
Category : Science
Languages : en
Pages : 340

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Book Description
Case Studies in Star Formation offers an overview of our current observational and theoretical understanding in the molecular astronomy of star formation. The book is divided into six sections: the first introduces an overview of star formation and the essential language, concepts and tools specific to molecular astronomy studies. Each subsequent section focuses on individual sources, beginning with a description of large-scale surveys. The volume covers low- and high mass star formation, ionization and photodissociation regions, and concludes with the extragalactic perspective. Conventional textbooks begin with principles, ending with a few convenient examples. Through copious examples, Case Studies reflects the reality of research, which requires the creative matching of ongoing observations to theory and vice-versa, often raising as many questions as answers. This supplementary study guide enables graduate students and early researchers to bridge the gap between textbooks and the wealth of research literature.