The Astrophysics of Emission-Line Stars

The Astrophysics of Emission-Line Stars
Author: Tomokazu Kogure
Publisher: Springer Science & Business Media
Total Pages: 544
Release: 2010-05-05
Genre: Science
ISBN: 0387689958

Emission line stars are attractive to many people because of their spectacular phenomena and their amazing varieties and variability. This book offers general information on emission line stars, starting from a brief introduction to stellar astrophysics and then moving to a broad overview of emission line stars including early and late type stars as well as pre-main sequence stars.

Reduced Kinetic Mechanisms for Applications in Combustion Systems

Reduced Kinetic Mechanisms for Applications in Combustion Systems
Author: Norbert Peters
Publisher: Springer Verlag
Total Pages: 360
Release: 1993
Genre: Technology & Engineering
ISBN: 9780387563725

Presents the most recent techniques of deriving reduced kinetic mechanisms for flames and gives a summary of the mechanisms that are available today. Papers discuss unstretched premixed flames, reduced kinetic mechanisms, counterflow diffusion flames, and structure and extinction of hydrogen-air flames. A compilation of experimental benchmark data and a discussion of available software for reducing mechanisms and flame calculations are included. Annotation copyright by Book News, Inc., Portland, OR

The Emission-Line Universe

The Emission-Line Universe
Author: Jordi Cepa
Publisher: Cambridge University Press
Total Pages: 0
Release: 2012-02-22
Genre: Science
ISBN: 9781107404670

This book presents lectures by prestigious researchers and experienced observers from the eighteenth Winter School of the Canary Islands Astrophysics Institute (IAC), devoted to emission lines and the astrophysical objects that produce them. It shows how emission lines in different wavelengths, from ultraviolet to near infrared, can provide essential information on understanding the formation and evolution of astrophysical objects, from the first stars to objects in our Galaxy. It includes practical tutorials for data reduction, making this a truly valuable reference for researchers and graduate students.

Stellar Spectral Classification

Stellar Spectral Classification
Author: Richard O. Gray
Publisher: Princeton University Press
Total Pages: 620
Release: 2009-03-29
Genre: Science
ISBN: 9780691125114

Written by leading experts in the field, Stellar Spectral Classification is the only book to comprehensively discuss both the foundations and most up-to-date techniques of MK and other spectral classification systems. Definitive and encyclopedic, the book introduces the astrophysics of spectroscopy, reviews the entire field of stellar astronomy, and shows how the well-tested methods of spectral classification are a powerful discovery tool for graduate students and researchers working in astronomy and astrophysics. The book begins with a historical survey, followed by chapters discussing the entire range of stellar phenomena, from brown dwarfs to supernovae. The authors account for advances in the field, including the addition of the L and T dwarf classes; the revision of the carbon star, Wolf-Rayet, and white dwarf classification schemes; and the application of neural nets to spectral classification. Copious figures illustrate the morphology of stellar spectra, and the book incorporates recent discoveries from earth-based and satellite data. Many examples of spectra are given in the red, ultraviolet, and infrared regions, as well as in the traditional blue-violet optical region, all of which are useful for researchers identifying stellar and galactic spectra. This essential reference includes a glossary, handy appendixes and tables, an index, and a Web-based resource of spectra. In addition to the authors, the contributors are Adam J. Burgasser, Margaret M. Hanson, J. Davy Kirkpatrick, and Nolan R. Walborn.

The Emission-line Universe

The Emission-line Universe
Author: Jordi Cepa
Publisher:
Total Pages: 296
Release: 2009
Genre: Active galactic nuclei
ISBN: 9780511464355

Emission lines provide a powerful tool to study the physical properties and chemical compositions of astrophysical objects in the Universe, from the first stars to objects in our Galaxy. The analysis of emission lines allows us to estimate the star formation rate and initial mass function of ionizing stellar populations, and the properties of active galactic nuclei. This book presents lectures from the eighteenth Winter School of the Canary Islands Astrophysics Institute (IAC), devoted to emission lines and the astrophysical objects that produce them. Written by prestigious researchers and experienced observers, it covers the formation of emission lines and the different sources that produce them. It shows how emission lines in different wavelengths, from ultraviolet to near infrared, can provide essential information on understanding the formation and evolution of astrophysical objects. It also includes practical tutorials for data reduction, making this a valuable reference for researchers and graduate students.

The Analysis of Starlight

The Analysis of Starlight
Author: J. B. Hearnshaw
Publisher: CUP Archive
Total Pages: 554
Release: 1990-04-19
Genre: Nature
ISBN: 9780521399166

This book presents a detailed pedagogical account of the equation of state and its applications in several important and fast growing topics in theoretical physics, chemistry and engineering. This book is the storv of the analysis of starlight by astronomical spectroscopy. It describes the development of the subject from the time of Joseph Fraunhofer, who, in 1814, used a telescope-mounted prism to observe the spectral light emitted from several bright stars. He discovered that light was missing at certain colours (wavelengths) in the starlight, and these so-called spectral lines were subsequently shown to hold clues to the nature of the stars themselves. The book explains how the classification of stars using their line spectra developed into a major branch of astronomy whilst new methods in astrophysics made possible the approximate quantitative analysis of spectral lines in the 1920s and 1930s. After the Second World War these techniques were considerably improved when computers were programmed to model the structure of the outer layers of stars. Basic concepts in spectroscopy and spectral analysis are also covered and. finally. Dr Hearnshaw comments on the stellar spectroscopy of some individual star.

B[e] Stars

B[e] Stars
Author: Anne Marie Hubert
Publisher: Springer Science & Business Media
Total Pages: 284
Release: 2013-06-29
Genre: Science
ISBN: 9401590141

The idea of having a meeting came to the Editors when working on several aspects of galactic Be and B[e] stars. They found that a general summary of the properties of B[e] stars was missing, so that the organiza tion of a first meeting on these objects appeared as very useful. B[e] stars have hydrogen line emission and forbidden [Fe 11] and [0 I] emission lines in their spectra; they are also characterized by a strong IR excess due to circumstellar dust. Having a large amount of extinction in the UV and the visual they have been less frequently observed than other emission line objects. Although about one hundred galactic objects have been classified as B[e], only fif teen or so have been studied in some detail. Besides this, the evolutionary status of these objects is rat her controversial, are they pre-main sequence or stars on the way to become nUclei of planetary nebulae? Other difficult problems appear when considering the relations of these stars with other similar groups, like Herbig AeBe stars, Be, luminous blue variables and the superluminous B[e] stars observed in the Magellanic Clouds. The conference seems timely since large surveys like DENIS and 2Mass, plus new space and new instruments for the micron, millimeter and cen timeter wavelength region will result in the discovery of more stars of this group.

Introduction to Astrophysics

Introduction to Astrophysics
Author: Jean Dufay
Publisher: Courier Corporation
Total Pages: 178
Release: 2012-10-17
Genre: Science
ISBN: 0486607712

A concrete, mid-level treatment, this readable and authoritative translation from the French provides an excellent guide to observational astrophysics. Methods of research and observation receive as much attention as results. Topics include stellar photometry and spectroscopy, classification and properties of normal stars, construction of Hertzsprung- Russell diagrams, Yerkes two-dimensional classification, and much more. Reprint of Introduction à l’astrophysique: les étoiles, Max Leclerc et Cie, 1961.

Spectroscopy: The Key to the Stars

Spectroscopy: The Key to the Stars
Author: Keith Robinson
Publisher: Springer Science & Business Media
Total Pages: 165
Release: 2007-08-15
Genre: Science
ISBN: 0387682880

This is the first non-technical book on spectroscopy written specifically for practical amateur astronomers. It includes all the science necessary for a qualitative understanding of stellar spectra, but avoids a mathematical treatment which would alienate many of its intended readers. Any amateur astronomer who carries out observational spectroscopy and who wants a non-technical account of the physical processes which determine the intensity and profile morphology of lines in stellar spectra will find this is the only book written specially for them. It is an ideal companion to existing books on observational amateur astronomical spectroscopy.

Star-Formation Rates of Galaxies

Star-Formation Rates of Galaxies
Author: Andreas Zezas
Publisher: Cambridge University Press
Total Pages: 318
Release: 2021-04-29
Genre: Science
ISBN: 1316877523

Star-formation is one of the key processes that shape the current state and evolution of galaxies. This volume provides a comprehensive presentation of the different methods used to measure the intensity of recent or on-going star-forming activity in galaxies, discussing their advantages and complications in detail. It includes a thorough overview of the theoretical underpinnings of star-formation rate indicators, including topics such as stellar evolution and stellar spectra, the stellar initial mass function, and the physical conditions in the interstellar medium. The authors bring together in one place detailed and comparative discussions of traditional and new star-formation rate indicators, star-formation rate measurements in different spatial scales, and comparisons of star-formation rate indicators probing different stellar populations, along with the corresponding theoretical background. This is a useful reference for students and researchers working in the field of extragalactic astrophysics and studying star-formation in local and higher-redshift galaxies.