The Structure and Distribution of Molecular Gas in the Interstellar Medium of the Milky Way PDF Download
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Author: Ole Marggraf
Publisher:
ISBN:
Category :
Languages : en
Pages : 119
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Book Description
Author: Ole Marggraf
Publisher:
ISBN:
Category :
Languages : en
Pages : 119
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Book Description
Author: J.M. van der Hulst
Publisher: Springer Science & Business Media
ISBN: 9401156204
Category : Science
Languages : en
Pages : 217
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Book Description
It has been more than five decades ago that Henk van de Hulst predicted the observability of the 21-cm line of neutral hydrogen (HI ). Since then use of the 21-cm line has greatly improved our knowledge in many fields and has been used for galactic structure studies, studies of the interstellar medium (ISM) in the Milky Way and other galaxies, studies of the mass distribution of the Milky Way and other galaxies, studies of spiral struc ture, studies of high velocity gas in the Milky Way and other galaxies, for measuring distances using the Tully-Fisher relation etc. Regarding studies of the ISM, there have been a number of instrumen tal developments over the past decade: large CCD's became available on optical telescopes, radio synthesis offered sensitive imaging capabilities, not only in the classical 21-cm HI line but also in the mm-transitions of CO and other molecules, and X-ray imaging capabilities became available to measure the hot component of the ISM. These developments meant that Milky Way was no longer the exclusive playground for ISM studies and that by reaching out to other galaxies astronomy had gained the advantage of having an "outside" view, though at the expense of giving up some linear resolution. Studies of the ISM in other galaxies are intimately connected to studies of the ISM in the Milky Way.
Author: James Lequeux
Publisher: Springer Science & Business Media
ISBN: 3540266933
Category : Science
Languages : en
Pages : 444
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Book Description
Describing interstellar matter in our galaxy in all of its various forms, this book also considers the physical and chemical processes that are occurring within this matter. The first seven chapters present the various components making up the interstellar matter and detail the ways that we are able to study them. The following seven chapters are devoted to the physical, chemical and dynamical processes that control the behaviour of interstellar matter. These include the instabilities and cloud collapse processes that lead to the formation of stars. The last chapter summarizes the transformations that can occur between the different phases of the interstellar medium. Emphasizing methods over results, The Interstellar Medium is written for graduate students, for young astronomers, and also for any researchers who have developed an interest in the interstellar medium.
Author: Robert L. Dickman
Publisher:
ISBN:
Category : Astronomy
Languages : en
Pages : 504
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Book Description
The volume consists of up-to-date reviews and a selection of contributed papers on subjects including the structure and physical properties of molecular clouds, their role in the star formation process, their dust and chemical properties, molecular cloud surveys of the Milky Way, cloud evolution, problems in cloud mass determinations (a panel discussion and review), the CO properties of external galaxies, nuclei of galaxies as revealed by molecular observations, and galactic spiral structure as reflected by molecular cloud distributions. The abstracts of poster papers on these topics presented at the conference are also included. This book is both a valuable reference and a compendium of current knowledge in this field. It should be of special interest to all students and researchers who work on the physics of star formation, the interstellar medium, molecular clouds and galactic structure.
Author: Loris Magnani
Publisher: Springer
ISBN: 3662543508
Category : Science
Languages : en
Pages : 317
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Book Description
This book provides an introduction to the physics of interstellar gas in the Galaxy. It deals with the diffuse interstellar medium which supplies a complex environment for exploring the neutral gas content of a galaxy like the Milky Way and the techniques necessary for studying this non-stellar component. After an initial exposition of the phases of the interstellar medium and the role of gas in a spiral galaxy, the authors discuss the transition from atomic to molecular gas. They then consider basic radiative transfer and molecular spectroscopy with particular emphasis on the molecules useful for studying low-density molecular gas. Observational techniques for investigating the gas and the dust component of the diffuse interstellar medium throughout the electromagnetic spectrum are explored emphasizing results from the recent Herschel and Planck missions. A brief exposition on dust in the diffuse interstellar medium is followed by a discussion of molecular clouds in general and high-latitude molecular clouds in particular. Ways of calibrating CO observations with the molecular hydrogen content of a cloud are examined along with the dark molecular gas controversy. High-latitude molecular clouds are considered in detail as vehicles for applying the techniques developed in the book. Given the transient nature of diffuse and translucent molecular clouds, the role of turbulence in the origin and dynamics of these objects is examined in some detail. The book is targeted at graduate students or postdocs who are entering the field of interstellar medium studies.
Author: David Bruce Sanders
Publisher:
ISBN:
Category : Galaxies
Languages : en
Pages :
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Book Description
Author: William Butler Burton
Publisher: Springer
ISBN:
Category : Science
Languages : en
Pages : 424
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Book Description
In this volume three extended lectures addressing both students and experienced astronomers and astrophysicists cover a wealth of material on interstellar matter. The first lecture details the most recent observationaldata on interstellar matter inside and outside our galaxy, such as the global distribution of matter and atomic or molecular gas and its kinematics. The second treats its large-scale dynamics, including instabilities and star formation. In the third the physics and chemistry of molecular clouds are discussed. This book can be used as a textbook for advanced students in astrophysics.
Author: J. Palous
Publisher: Cambridge University Press
ISBN: 9780521419840
Category : Science
Languages : en
Pages : 442
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Book Description
Proceedings of the international workshop on the 'Evolution of Interstellar Matter and Dynamics of Galaxies'.
Author: P. M. Solomon
Publisher: Elsevier
ISBN: 1483159868
Category : Science
Languages : en
Pages : 361
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Book Description
Giant Molecular Clouds in the Galaxy: Third Gregynog Astrophysics Workshop covers the proceedings of the 1977 Third Gregynog Astrophysics Workshop on Giant Molecular Clouds (GMC), held at the University of Wales. This book is organized into 11 parts encompassing 33 chapters. After a brief introduction to the significant features of GMC, this book goes on examining radio, millimeter, and galactic center observations of GMC, along with their infrared properties and kinematics. Other parts deal with the water sources in GMC; time variation in interstellar water masers; and the relation of HII regions to molecular clouds. The remaining parts discuss the evolution of interstellar molecular clouds and the role of magnetic fields in the collapse of protostellar gas clouds. These parts also cover the chemistry of interstellar molecules containing nitrogen and the search for other planetary systems. This book will prove useful to cloud scientists, physicists, astronomers, and researchers.
Author: David Bruce Sanders
Publisher:
ISBN:
Category : Interstellar matter
Languages : en
Pages : 241
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Book Description
