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Author : Heinrich K. Eichhorn,Robert J. Leacock
Publisher : Springer Science & Business Media
Page : 803 pages
File Size : 44,6 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400946767
Proceedings of the 109th Symposium of the International Astronomical Union, held in Gainesville, Florida, USA, January 9-12, 1984
Author : Jean Kovalevsky
Publisher : Springer Science & Business Media
Page : 383 pages
File Size : 47,8 Mb
Release : 2013-03-09
Category : Science
ISBN : 9783662047309
An introduction to practical astrometry, dealing with the determination of positions, motions, distances and dimensions of celestial bodies ranging from quasars to artificial satellites. For this 2nd edition, the release of the Hipparcos and Tycho catalogs, the rise in CCD astrometry and the adoption of a new celestial reference frame by the IAU led to a significant modification of the text. And, especially, the outlook for astrometry has been completely rewritten.
Author : J.M. Shull,Harley A. Thronson Jr.,S. Alan Stern
Publisher : Springer Science & Business Media
Page : 159 pages
File Size : 46,8 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401158084
Proceedings of a Conference held in Boulder, CO on May 14-17, 1995
Author : Prof. Dr. Roland Wielen,S. Böhme,U. Esser,H. Hefele,Inge Heinrich,W. Hofmann,D. Krahn,V. R. Matas,Dr. Lutz D. Schmadel,G. Zech
Publisher : Springer Science & Business Media
Page : 1122 pages
File Size : 55,8 Mb
Release : 2013-04-17
Category : Science
ISBN : 9783662123553
Author : Zdenek Kopal,Jürgen H. Rahe
Publisher : Springer Science & Business Media
Page : 204 pages
File Size : 40,6 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789400953437
During the past years, a number of international astronomical conferences were held at the Remeis-Observatory in Bamberg, four of them sponsored by the International Astronomical Union. The first meeting was organized in 1959 and dealt with Variable Stars, the last one was held in 1981 and focussed on 'Binary and Multiple Stars as Tracers of Stellar Evolution'. The present conference was organized to commemorate the 200th anniversary of the birth of Friedrich Wilhelm Bessel, who was born in Minden on July 22, 1784, and died in Konigsberg on March 17, 1846. When the plan for an international conference on astrometric binaries was presented to several colleagues, we received enthusiastic support and decided to pursue the idea. A Scientific Organizing Committee was soon established, consisting of: Z. Kopal Manchester, u.K.S.M. Gong Nanjing, China (Chairman) M. Grewing Tiibingen, F.R.G.V. Abalakin Pulkovo, U.S.S.R.P. v. d. Kamp Amsterdam, Netherlands J. Dommanget Uccle, Belgium M. Kitamura Tokyo, Japan M.G. Fracastoro Torino, Italy J. Rahe Bamberg, F.R.G.W. Fricke Heidelberg, F.R.G. Ya. Yatskiv Kiev, U.S.S.R.E.H. Geyer Bonn, F.R.G. The meeting took place in Bamberg at the Remeis-Observatory, Astronomical Institute of the University Erlangen-Nurnberg, from June l3 to 15, 1984. The following institutions generously supported the meeting: Deutsche Forschungs gemeinschaft, Bonn; Stadt Bamberg; Universitat Bamberg; Universitat Erlangen Nurnberg; University of Manchester.
Author : Jean Kovalevsky,P. Kenneth Seidelmann
Publisher : Unknown
Page : 424 pages
File Size : 54,6 Mb
Release : 2011-12-18
Category : Nature
ISBN : 9781139118293
This text details the fundamentals of astrometry at milli- and micro-arcsecond accuracies.
Author : International Astronomical Union. Symposium
Publisher : Cambridge University Press
Page : 620 pages
File Size : 55,7 Mb
Release : 2008-08-21
Category : Science
ISBN : 052187470X
State-of-the-art review of the growing field of astrometry, for researchers and graduate students.
Author : W. Gliese,C.A. Murray,R.H. Tucker
Publisher : Springer Science & Business Media
Page : 296 pages
File Size : 50,5 Mb
Release : 2012-12-06
Category : Science
ISBN : 9789401021999
Proceedings of IAU Symposium No. 61 held in Perth, Western Australia, 13-17 August 1973
Author : Erik Høg,P. Kenneth Seidelmann
Publisher : Springer Science & Business Media
Page : 427 pages
File Size : 50,7 Mb
Release : 2013-12-01
Category : Science
ISBN : 9789401100694
Astrometry is on the threshold of great changes due to the fact that this decade, alone, is witnessing an improvement of stellar positions equivalent to the total improvement of the previous two centuries. The Hipparcos Satellite has concluded its observations, and the catalog is in preparation. Preliminary results assure that the Hipparcos catalog will provide positions, parallaxes and annual proper motions for over 100,000 stars with accuracies of 1.5 milliarcseconds. In addition, the Tycho catalog will provide positions of about 30 milliarcseconds accuracy for over 1 million stars, and annual proper motions with 3 milliarcsecond accuracy will subsequently be ob tained by means of first epoch positions from the Astrographic Catalog. Optical interferometers on the ground are beginning operation, and these instruments can provide observational accuracies of approximately one milliarcsecond. Also, the traditional reference frame based on the Fun damental Catalog of bright stars is being replaced by the extragalactic ref erence frame, based on radio sources with accuracies of one milliarcsecond. Thus, astrometry will change from a fundamental reference frame defined in terms of the dynamical reference frame of the solar system with accuracies of 100 milliarcseconds to a space-fixed, extragalactic reference frame with accuracies of one milliarcsecond. Future astrometric observations should be in the 1 -100 milliarcsecond accuracy range. There are a number of concepts for future astrometric instruments in space. Most of these can provide sub-milliarcsecond astrometric accuracies.
Author : Ivan I. Mueller,Barbara Kolaczek
Publisher : Springer Science & Business Media
Page : 446 pages
File Size : 43,9 Mb
Release : 2013-12-01
Category : Science
ISBN : 9789401117111
In this review talk, I would like to report on the proper motion analysis, which has been recently carried out together with M. Soma and M. Yoshizawa: There has been a persistent demand in astronomy for accurate stellar positions and proper motions, which are represented by an inertial reference system constructed on the basis of a set of consistent astronomical constants. In the reference system the precessional constant plays a primary role. In a series of papers Fricke (1967a,b, 1977a,b) has deter mined the luni-solar precessional correction to Newcomb's value and the fictitious motion of the equinox, which have been adopted in the "IAU (1976) System of Astronomical Con stants". Based on the precessional correction and the equinoctial motion thus established, the fundamental reference system, the FK5 system (Fricke et al. 1988) for positions and proper motions, has been constructed. However, for several years geodetic VLBI (McCarthy & Luzum 1991) and LLR (Williams et at. 1991) observations have been suggesting an additional correction to the luni-solar precessional constant of the IAU (1976) System. That is, these observations indicate the precessional correction of 6. p ~ -0:'30/cent to the FK5 system. But, the observational period ofthe earth orientation is considered to be still insufficient to separate unambiguously the precessional change of the earth orientation from the nutation with the longest period of 18. 6 years.
Author : Franco Mantovani,Andrzej Kus
Publisher : Springer Science & Business Media
Page : 416 pages
File Size : 52,8 Mb
Release : 2005-12-31
Category : Science
ISBN : 9781402024061
A masterly survey of the last 13 years of Very Long Baseline Interferometry, reviewed in light of the most advanced astronomical observations. Topics covered include: Nonthermal emission from extragalactic radio sources; Principles of synchrotron emission in relation to astrophysics; Theory of relativistic jets; Young, powerful radio sources and their evolution; Scintillation in extragalactic radio sources; Radio and optical interferometry; Radio polarimetry; Unified schemes; Deep fields; Tropospheric and ionospheric phase calibration; Supernovae; VLBI for geodesy and geodynamics.
Author : William F. van Altena
Publisher : Cambridge University Press
Page : 431 pages
File Size : 41,7 Mb
Release : 2013
Category : Nature
ISBN : 9780521519205
Unifying work by a broad range of experts in the field, this is the most complete textbook on observational astrometry.
Author : P Murdin
Publisher : CRC Press
Page : 5610 pages
File Size : 49,5 Mb
Release : 2001-01-01
Category : Science
ISBN : 9781000523034
In a unique collaboration, Nature Publishing Group and Institute of Physics Publishing have published the most extensive and comprehensive reference work in astronomy and astrophysics. This unique resource covers the entire field of astronomy and astrophysics and this online version includes the full text of over 2,750 articles, plus sophisticated search and retrieval functionality and links to the primary literature. The Encyclopaedia's authority is assured by editorial and advisory boards drawn from the world's foremost astronomers and astrophysicists. This first class resource is an essential source of information for undergraduates, graduate students, researchers and seasoned professionals, as well as for committed amateurs, librarians and lay people wishing to consult the definitive astronomy and astrophysics reference work.
Author : Hans G. Walter,Ojars J. Sovers
Publisher : Springer Science & Business Media
Page : 246 pages
File Size : 40,5 Mb
Release : 2012-12-06
Category : Science
ISBN : 9783642572609
Celestial fundamental catalogues are a prerequisite for the determination of absolute positions and motions in space. Presently, positional astrometry is at the watershed between classical fundamental catalogues, based on moving reference stars, and modern catalogues, based on extragalactic reference objects with non-measurable motion. This book addresses the concepts and methods of the respective construction techniques leading to the stellar frame of the FK5 (fifth fundamental catalogue) and to the newly adopted extragalactic radio reference frame, ICRF (international celestial reference frame), with its extension to optical wavelengths by the Hipparcos Catalogue. While principal outlines of meridian circle observations are given, emphasis is put in some detail on the VLBI technique as applied to astrometry, and to the observational techniques used in the Hipparcos mission, including the tie of the originally non-anchored rigid Hipparcos sphere into the ICRF.
Author : Patrick Cassen,Tristan Guillot,A. Quirrenbach
Publisher : Springer Science & Business Media
Page : 463 pages
File Size : 44,5 Mb
Release : 2007-05-17
Category : Science
ISBN : 9783540314707
Research on extrasolar planets is one of the most exciting fields of activity in astrophysics. In a decade only, a huge step forward has been made from the early speculations on the existence of planets orbiting "other stars" to the first discoveries and to the characterization of extrasolar planets. This breakthrough is the result of a growing interest of a large community of researchers as well as the development of a wide range of new observational techniques and facilities. Based on their lectures given at the 31st Saas-Fee Advanced Course, Andreas Quirrenbach, Tristan Guillot and Pat Cassen have written up up-to-date comprehensive lecture notes on the "Detection and Characterization of Extrasolar Planets", "Physics of Substellar Objects Interiors, Atmospheres, Evolution" and "Protostellar Disks and Planet Formation". This book will serve graduate students, lecturers and scientists entering the field of extrasolar planets as detailed and comprehensive introduction.
