Photometric And Spectroscopic Binary Systems PDF Download
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Author | : E.B. Carling |
Publisher | : Springer Science & Business Media |
Total Pages | : 571 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 9400984863 |
Download Photometric and Spectroscopic Binary Systems Book in PDF, ePub and Kindle
Our conference - opening today - has two aims in view: first, to commemorate some milestones in the development of the studies of close binary systems whose anniversaries fall in these years, as well as to take stock of our present knowledge accumulated through out preceding decades, in order to consider where do we go from here. This summer, 310 years will have elapsed since the first ec lipsing binary - Algol - was discovered in Bologna by Geminiano Montanari (1633-1687) to be a variable star; and 198 years have gone by since John Goodricke of York (1764-1786) established the fact that Algol's light changes were periodic. Moreover, it is al most exactly (to a month) now 100 years since Edward Charles Pickering (1846-1919) of Harvard Observatory in the United States took the first steps towards the development of systematic methods of analysis of the light changes of Algol and related systems - a topic which will constitute the major part of the programme of our present conference. The three dates recalled above illustrate that the discoverers of such celestial objects and observers of their light changes have been systematically ahead of the theoreticians endea vouring to understand the significance of the observed data by de cades and centuries in the past - a fact which, incidentally, con tinues to hold good (albeit with a diminishing lead-time) up to the present.
Author | : Edwin Budding |
Publisher | : CRC Press |
Total Pages | : 363 |
Release | : 2022-05-12 |
Genre | : Science |
ISBN | : 1351662465 |
Download A Guide to Close Binary Systems Book in PDF, ePub and Kindle
Introduction to Close Binary Systems provides a comprehensive survey and guide to the fast-moving field of multiple, specifically binary, stars, with an up to date account of research around 'close', i.e. interacting pairs. Such interactions allow direct quantification of stellar properties, opening up factual insights into basic building blocks of the Universe. The book provides a much needed update for the seminal Close Binary Systems of Zdenĕk Kopal. Following a comparable plan, it presents relevant subject matter with an emphasis on building a framework of understanding to serve as a supporting resource for students and researchers. The text starts from a general historical background and progresses into the main theoretical ideas supporting our prima facie interpretation of observations. The central chapters explore further into these observational methods, arranged according to the classic subdivisions of astrometry, spectroscopy and photometry. Optimal inversion of observational data into model parametrization is a theme through these chapters. Significant here is the problem of how non-uniqueness in modelling affects interpretation. The underlying issues of stellar evolution bearing on observational evidence become paramount in the last four chapters. The book proceeds step-by-step from directly understandable examples of unevolved pairs to the challenging cases where stars are found in more and more extreme conditions, leading up to the mergers of massive black hole pairs seen in the new field of gravitational wave astronomy. This is a valuable reference for postgraduate and advanced undergraduate students working in mainstream areas of stellar astrophysics, with applications also to exoplanet research which shares some methodological features. Course designers for stellar astrophysics will find a useful selection of topics within this book. Key features: • Provides a well-explained and backgrounded, up-to-date account of close binary systems, in a fast-moving field of research that is growing in scientific importance • Surveys a wide range of case-studies within the context of binary and multiple star systems • Fills an acknowledged gap in current literature Cover Image: A public memorial to Zdenek Kopal in his home town (birthplace) of Litomysl in Czechia.
Author | : International Astronomical Union. Symposium |
Publisher | : Cambridge University Press |
Total Pages | : 524 |
Release | : 2007-08-27 |
Genre | : Science |
ISBN | : 9780521863483 |
Download Binary Stars as Critical Tools and Tests in Contemporary Astrophysics (IAU S240) Book in PDF, ePub and Kindle
IAU S240 focuses on recent advances across the broad field of binary star research.
Author | : Horst Drechsel |
Publisher | : Springer Science & Business Media |
Total Pages | : 536 |
Release | : 2005-03-22 |
Genre | : Science |
ISBN | : 9781402031311 |
Download Zdenek Kopal's Binary Star Legacy Book in PDF, ePub and Kindle
These proceedings celebrate the achievements of the great astronomer Zdenek Kopal, and reflect the state of the art of the dynamically evolving field of binary research, which owes so much to Kopal’s pioneering work.
Author | : Silvano Ghedini |
Publisher | : |
Total Pages | : 244 |
Release | : 1982 |
Genre | : Algorithms |
ISBN | : |
Download Software for Photometric Astronomy Book in PDF, ePub and Kindle
Author | : Siegfried Böhme |
Publisher | : Springer Science & Business Media |
Total Pages | : 862 |
Release | : 2013-11-11 |
Genre | : Science |
ISBN | : 3662123282 |
Download Literature 1981, Part 1 Book in PDF, ePub and Kindle
Author | : A.H. Batten |
Publisher | : Springer Science & Business Media |
Total Pages | : 304 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 9401026149 |
Download Extended Atmospheres and Circumstellar Matter in Spectroscopic Binary Systems Book in PDF, ePub and Kindle
The proposal to organize a Symposium on circumstellar matter and extended atmo spheres in binary systems was first made by the Dominion Astrophysical Observatory to the Executive Committee of the International Astronomical Union in the summer of 1969. It received the support of the presidents of Commissions 29 (Stellar Spectra), 30 (Radial Velocities), 36 (Stellar Atmospheres), and 42 (Photometric Double Stars). Approval in principle was given by the Executive Committee almost immediately, and the Committee further suggested that the Symposium be officially designated the Struve Memorial Symposium. Final approval was given at the time of the 1970 General Assembly of the Union. when the dates of the Symposium were set for August or September, 1972. The Organizing Committee set up consisted of K. O. Wright (Chairman), A. H. Batten, K. -H. B6hm, A. A. Boyarchuk, G. Larsson-Leander, and M. Plavec. In addition, J. Sahade and F. B. Wood acted as advisory members. Local organization was entrusted to a committee consisting of A. H. Batten, E. K. Lee, and C. D. Scarfe. The final dates selected were September 6-12, 1972, and the Sym posium was held at the Island Hall Hotel, Parksville, B. C. , on Vancouver Island some 90 miles from Victoria. The Organizing Committee attempted to arrange a Symposium of the type in which no contributed papers would be presented and discussion would range as widely as possible over the field covered by the six invited review papers.
Author | : Cafer Ibanogammalu |
Publisher | : Springer Science & Business Media |
Total Pages | : 898 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 940090679X |
Download Active Close Binaries Book in PDF, ePub and Kindle
Since the 1970s symposia or colloquia devoted to recent research on close binaries have been held around the world almost annually. At meetings of the General Assembly of the International Astronomical Union this topic has also been discussed in detail at presentations in various commission meetings and also as invited talks by leading astronomers in the field. In recent years, fundamental changes have taken place in the study of close binaries due to the improvements in observational techniques, extension of observations from X-ray to radio regions of the electromagnetic spectrum, and advances in theoretical studies. For more than a decade, a group of astronomers at Ege University Observatory has been concentrating on active close binaries with particular emphasis on the behaviour of the light curves of chromospherically active systems. Thus, we decided to organize an international meeting in Western Anatolia, where this part of Turkey had been the cradle for great developments in science during antiquity. KUljadasi, located only minutes away from Ephesus, one of the seven wonders of the world, was selected to be the meeting site. Close binary systems constitute a very rich source of information about the physical properties of the component stars. Some systems are eclipsing variables, where periodic recurrences of eclipses are observed as comparatively brief decreases in the total brightness of the binary system. Precise methods of photometric observations make it possible to obtain the light variations of these systems because of eclipses and other phenomena.
Author | : Josef Kallrath |
Publisher | : Springer Science & Business Media |
Total Pages | : 376 |
Release | : 2013-11-11 |
Genre | : Science |
ISBN | : 1475731280 |
Download Eclipsing Binary Stars Book in PDF, ePub and Kindle
Focussing on the formulation of mathematical models for the light curves of eclipsing binary stars, and on the algorithms for generating such models, this book provides astronomers, both amateur and professional, with a guide for - specifying an astrophysical model for a set of observations - selecting an algorithm to determine the parameters of the model - estimating the errors of the parameters. It is written for readers with knowledge of basic calculus and linear algebra; appendices cover mathematical details on such matters as optimisation, co-ordinate systems, and specific models. While emphasising the physical and mathematical framework, the discussion remains close to the problems of actual implementation. The book concludes with chapters on specific models and approaches and the authors'views on the structure of future light-curve programs.
Author | : Ernst Paunzen |
Publisher | : Cuvillier Verlag |
Total Pages | : 248 |
Release | : 2020-10-13 |
Genre | : Science |
ISBN | : 3736962835 |
Download The ∆a photometric system Book in PDF, ePub and Kindle
This book describes the characteristics and applications of the Δa photometric system, which measures the stellar flux at around 520 nm. Since its introduction in 1976 by Hans-Michael Maitzen, the Δa system has not only been successfully applied to the classical chemically peculiar stars of the upper main sequence, but also to galactic and extragalactic star clusters. New possible applications for studying galaxies, quasars and other astrophysical objects of interest are discussed.