Mirabel 1999 银河系中的相对论性喷流

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精彩摘抄:

当时（1999年）就这几个源，而且都是大角度指向的。

theta的含义。

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Title:		Sources of Relativistic Jets in the Galaxy
Authors:		Mirabel, I. F.; Rodríguez, L. F.
Affiliation:		AA(Centre d'Études de Saclay, CEA/DSM/DAPNIA/Sap, Gif-sur-Yvette, F-91191 France; and Instituto de Astronomía y Física del Espacio C.C. 67, Suc. 28. 1428, Buenos Aires, Argentina mirabel@discovery.saclay.cea.fr), AB(Instituto de Astronomía, UNAM, Apdo. 04510 México, México D.F., Postal 70-264 luisfr@astrosmo.unam.mx)
Publication:		Annual Review of Astronomy and Astrophysics, Vol. 37, pp. 409-443. (Annual Reviews Homepage)
Publication Date:		00/1999
Origin:		ARA&A
Keywords:		RADIO CONTINUUM STARS, SUPERLUMINAL MOTION, X-RAYS BINARIES
DOI:		10.1146/annurev.astro.37.1.409
Bibliographic Code:		1999ARA&A..37..409M

Abstract

Black holes of stellar mass and neutron stars in binary systems are first detected as hard X-ray sources using high-energy space telescopes. Relativistic jets in some of these compact sources are found by means of multiwavelength observations with ground-based telescopes. The X-ray emission probes the inner accretion disk and immediate surroundings of the compact object, whereas the synchrotron emission from the jets is observed in the radio and infrared bands, and in the future could be detected at even shorter wavelengths. Black-hole X-ray binaries with relativistic jets mimic, on a much smaller scale, many of the phenomena seen in quasars and are thus called microquasars. Because of their proximity, their study opens the way for a better understanding of the relativistic jets seen elsewhere in the Universe. From the observation of two-sided moving jets it is inferred that the ejecta in microquasars move with relativistic speeds similar to those believed to be present in quasars. The simultaneous multiwavelength approach to microquasars reveals in short timescales the close connection between instabilities in the accretion disk seen in the X-rays, and the ejection of relativistic clouds of plasma observed as synchrotron emission at longer wavelengths. Besides contributing to a deeper understanding of accretion disks and jets, microquasars may serve in the future to determine the distances of jet sources using constraints from special relativity, and the spin of black holes using general relativity.

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