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Author : John J. Broderick
Publisher :
ISBN 13 :
Total Pages : 7 pages
Book Rating : 4.:/5 (755 download)
Download or read book High Resolution Observations of Compact Radio Sources at Thirteen Centimeters Part Two written by John J. Broderick and published by . This book was released on 1972 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Observations of Compact Radio Sources written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Roberto Fanti
Publisher : Springer Science & Business Media
ISBN 13 : 9789027717399
Total Pages : 522 pages
Book Rating : 4.7/5 (173 download)
Download or read book VLBI and Compact Radio Sources written by Roberto Fanti and published by Springer Science & Business Media. This book was released on 1984-05-31 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: I.A.U. symposium No. 110 on VLBI and Compact Radio Sources was held in Bologna, Italy from June 27 to July 1, 1983. 166 participants from 19 countries were registered and 106 invited and contributed papers were registered. The scientific presentations and discussion concentrated on VLBI observation and interpretation of galactic and extragalactic radio sour ces, including topics as diverse as quasars and galactic nuclei, inter stellar masers, pulsars, and astrometry. Geodetic applications and tech nical development were treated only briefly, as these topics have been the subject of other recent international symposia. Since the first VLBI observations in 1967, sensitivity, resolution, and image quality have improved dramatically. Radio maps shown at the symposium were of comparable quality to conventional synthesis maps be ing made at the time of the first VLBI experiments 15 years ago, but with a resolution more than a factor of 1000 better. We wanted to accommodate the large number of contributed papers in this rapidly developing field, but there was inadequate time for normal oral presentations and discussion. We therefore asked that all contrib uted papers be put on display for at least 24 hours prior to a brief oral summary. A question and discussion period followed groups of oral pres entations on the same or similar topic. In this way the opportunity for interactive discussion, not available in conventional poster displays, was preserved.
Author :
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (757 download)
Download or read book 6-cm VLBI Observations of Compact Radio Sources written by and published by . This book was released on 1981 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert B. Phillips
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (164 download)
Download or read book High Resolution Observations of the Compact Radio Sources CTD 93 and 3C 395 at 1671 MHz written by Robert B. Phillips and published by . This book was released on 1979 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : K. I. Kellermann
Publisher :
ISBN 13 :
Total Pages : 55 pages
Book Rating : 4.:/5 (227 download)
Download or read book High Resolution Observations of Compact Radio Sources at 6 and 18 CM. written by K. I. Kellermann and published by . This book was released on 1971 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: The small scale structure of extragalactic radio sources has been studied at 18 and 6 cm wavelengths using a tape recording interferometer. At the longest antenna spacing, 10,536 km, the baselines at 6 cm was 176 million wavelengths and the resolution was about 0.0004 arc seconds for the stronger sources. Many sources, including optically identified galaxies and quasars, are found to have several distinct components of widely differing size in the range from the few hundredths of a second of arc to the limit of our resolution. Many sources, including 0106+01, 3C 273, 3C279, 1555+00, 2145+06, 3C 446, 3C 454.3, and 2345-16 all contain components which are unresolved on the longest baseline are less than .0004 arc sec. in diameter. Observations at shorter wavelengths are required to resolve these sources. Because the maximum brightness temperature is limited to 10 to the 12th power K, by inverse Compton scattering, baselines no greater than the diameter of the earth are probably adequate to resolve all of the stronger extragalactic sources. (Author).
Author : Antonios G. Polatidis
Publisher :
ISBN 13 :
Total Pages : 320 pages
Book Rating : 4.:/5 (643 download)
Download or read book VLBI Observations of a Flux-limited Sample of Compact Radio Sources written by Antonios G. Polatidis and published by . This book was released on 1993 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Roberto Fanti
Publisher : Springer
ISBN 13 : 9789401099387
Total Pages : 0 pages
Book Rating : 4.0/5 (993 download)
Download or read book VLBI and Compact Radio Sources written by Roberto Fanti and published by Springer. This book was released on 1984-06-14 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: I.A.U. symposium No. 110 on VLBI and Compact Radio Sources was held in Bologna, Italy from June 27 to July 1, 1983. 166 participants from 19 countries were registered and 106 invited and contributed papers were registered. The scientific presentations and discussion concentrated on VLBI observation and interpretation of galactic and extragalactic radio sour ces, including topics as diverse as quasars and galactic nuclei, inter stellar masers, pulsars, and astrometry. Geodetic applications and tech nical development were treated only briefly, as these topics have been the subject of other recent international symposia. Since the first VLBI observations in 1967, sensitivity, resolution, and image quality have improved dramatically. Radio maps shown at the symposium were of comparable quality to conventional synthesis maps be ing made at the time of the first VLBI experiments 15 years ago, but with a resolution more than a factor of 1000 better. We wanted to accommodate the large number of contributed papers in this rapidly developing field, but there was inadequate time for normal oral presentations and discussion. We therefore asked that all contrib uted papers be put on display for at least 24 hours prior to a brief oral summary. A question and discussion period followed groups of oral pres entations on the same or similar topic. In this way the opportunity for interactive discussion, not available in conventional poster displays, was preserved.
Author : Mark Warren Hodges
Publisher :
ISBN 13 :
Total Pages : 172 pages
Book Rating : 4.:/5 (823 download)
Download or read book VLBI Observations of Compact Double Radio Sources written by Mark Warren Hodges and published by . This book was released on 1984 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : K. Y. Lo
Publisher :
ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (227 download)
Download or read book VLBI Observations of the Compact Radio Source in the Center of the Galaxy written by K. Y. Lo and published by . This book was released on 1975 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: The detection of a compact radio source in the direction of the Galactic Center during VLBI observations at 3.7 cm on 19 May, 1975 between the Owens Valley Radio Observatory 40-m telescope and the Goldstone 64-m telescope is reported. The recording of the signals and the subsequent cross-correlation were made with the standard MkII VLBI system with a bandwidth of 2 MHz.
Author : F. G. Smith
Publisher : Springer
ISBN 13 :
Total Pages : 108 pages
Book Rating : 4.3/5 (91 download)
Download or read book Pulsating Stars written by F. G. Smith and published by Springer. This book was released on 1968 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jonathan David Riley
Publisher :
ISBN 13 :
Total Pages : 123 pages
Book Rating : 4.:/5 (643 download)
Download or read book Observations of Compact Radio Source in the Starburst Galaxy M82 written by Jonathan David Riley and published by . This book was released on 2003 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : G. Setti
Publisher : Springer Science & Business Media
ISBN 13 : 9401015171
Total Pages : 288 pages
Book Rating : 4.4/5 (1 download)
Download or read book The Physics of Non-Thermal Radio Sources written by G. Setti and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt: by the completion of large aperture synthesis radio telescopes, which have permitted a detailed mapping of radio sources, and by the development of very long base-line interferometry (VLBI), with 4 3 resolutions down to 10- - 10- arc sec, which for the first time has rendered possible radio investigations of the structures of the very compact radio sources found in galactic nuclei and quasars. The observations obtained with this new instrumentation, combined with the work in the optical, infrared and X-ray domain, have made great strides in recent years toward improved testing of radio source models. We feel that the material presented at the Institute represents a rather complete and comprehensive coverage of the present status of studies of non-thermal radio sources, though one is aware of rapid developments in this field of research. The various aspects of this exciting subject were covered in a series of lectures, pre sented in this volume, totaling 44 hours and in 14 topical seminars given by the participants. I wish to express my gratitude to the Scientific Affairs Divi sion of the North Atlantic Treaty Organization for the generous support given to the course. Sincere thanks are also due to Mr. L. Baldeschi for helping with the organization of the meeting and for drawing a number of figures contained in this volume; to Mrs. B. Mandel for the patient typing and help in the editing; and to Mr. R. Primavera for the photographic reproduction of part of the figures.
Author : G. A. Seielstad
Publisher :
ISBN 13 :
Total Pages : 19 pages
Book Rating : 4.:/5 (227 download)
Download or read book CIRCULAR POLARIZATION MEASUREMENTS OF COMPACT RADIO SOURCES AT 1420 MHz. INTERFEROMETRIC OBSERVATIONS OF THE RADIO SOURCE VRO 42 22 01 written by G. A. Seielstad and published by . This book was released on 1969 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: E CIRCULAR POLARIZATION OF SEVENTEEN SMALL-DIAMETER RADIO SOURCES HAS BEEN MEASURED AT A FREQUENCY OF 1420 MHz. None had detectable polarization, although for some sources independent measurements made at different frequencies agreed as to the sense of circular polarization. The position of VRO 42 22 01 has been measured to an accuracy of 2 in. Its diameter at 9.6 GHz is
Author : Robert James Long
Publisher :
ISBN 13 :
Total Pages : 142 pages
Book Rating : 4.:/5 (657 download)
Download or read book Observations of the Spectra of Radio Sources written by Robert James Long and published by . This book was released on 1963 with total page 142 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Daniel R. Altschuler
Publisher :
ISBN 13 :
Total Pages : 67 pages
Book Rating : 4.:/5 (491 download)
Download or read book Observations of the Flux Density and Linear Polarization of Compact Extragalactic Radio Sources at 3.7- and 11.1-cm Wavelength written by Daniel R. Altschuler and published by . This book was released on 1976 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Thomas Joseph Balonek
Publisher :
ISBN 13 :
Total Pages : 768 pages
Book Rating : 4.:/5 (87 download)
Download or read book Multi-frequency Radio Observations of Compact Extragalactic Sources written by Thomas Joseph Balonek and published by . This book was released on 1982 with total page 768 pages. Available in PDF, EPUB and Kindle. Book excerpt:
