Gerhard Klare

Reviews in Modern Astronomy

Variabilities in Stars and Galaxies

• Broschiertes Buch

Produktbeschreibung

The International Scientific Spring Meeting of the Astronomische Ge sellschaft (AG) held at Bamberg in April 1991 was devoted to "Vari abilities in Stars and Galaxies". Time-dependent phenomena are observed in a wide range of as tronomical objects. They are caused by different physical mechanisms (for example by pulsation, by accretion, or by dramatic eruptive events in connection with mass outflow) producing observable intensity vari ations through all wavelengths. Many of the papers in this volume are concerned with galactic stars showing such behaviour (for ex ample cataclysmic variables, symbiotic stars, luminous blue variables (LBVs) and novae). Intrinsic variations of the, magnetic field struc ture on observable time scales are, for instance, a peculiarity of cool, solar-like stars and represent a useful tool to study differential rotation and cycles of activity. Recent results on the investigation of gas motions in the inner regions of the Milky Way system, a study of the bipolar galaxy M 82, observations of variable extragalactic radio sources, the variability of emission lines in active galactic nuclei (AGN) as well as continuum variations of quasars and AGN are discussed by several authors. The yearbook series Reviews in Modern Astronomy of the AG to bring the scientific events of the was established in 1988 in order meetings of the society to the attention of the worldwide astronomical community.

Produktdetails

• Reviews in Modern Astronomy .5
• Verlag: Springer / Springer Berlin Heidelberg / Springer, Berlin
• Artikelnr. des Verlages: 978-3-642-77545-1
• Softcover reprint of the original 1st ed. 1992
• Seitenzahl: 284
• Erscheinungstermin: 21. Dezember 2011
• Englisch
• Abmessung: 235mm x 155mm x 16mm
• Gewicht: 435g
• ISBN-13: 9783642775451
• ISBN-10: 3642775454
• Artikelnr.: 36121069

Autorenporträt

The fifth yearbook of the Astronomische Gesellschaft (AG) contains eighteen reviews and highlight contributions dedicated to the topic Variabilities in Stars and Galaxies. The contributions deal with time-dependent phenomena of a wide range of astronomical objects, and the different physical mechanisms causing the variability are discussed.

Inhaltsangabe

Luminous Blue Variables; Quiescent and Eruptive States.- On Pulsations of Luminous Stars.- Cataclysmic Variables - Selected Problems.- Symbiotic Stars.- Abundances of Classical Novae.- Recent Advances in Studies of the Nova Outburst.- Accretion Disc Phenomena.- The Variability of Magnetic Stars.- Observational Aspects of Stellar Seismology.- Testing Stellar Evolution Theory with Oscillation Frequency Data.- Evolution of Stars and Gas in Galactic Nuclei.- Gas Motions in the Inner Galaxy and the Dynamics of the Galactic Bulge Region.- Stellar X-Ray Variability as Observed with the ROSAT XRT.- M82 - The Bipolar Galaxy.- Variability and VLBI Observations of Extragalactic Radio Sources.- Emission Line Variability in AGN's.- The Continuum of Quasars and Active Galactic Nuclei, and Its Time Variability.- Gravitational Lensing by Large-Scale Structures.- Index of Contributors.