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Multiwavelength Temporal Behavior of GRS 1915+105

Published online by Cambridge University Press:  25 May 2016

D. Hannikainen  and
Ph. Durouchoux
D. Hannikainen
Affiliation:
Observatory, PO Box 14 00014 University of Helsinki, Finland
Ph. Durouchoux
Affiliation:
C.E. Saclay, DSM, DAPNIA, Service d'Astrophysique 91191 Gif sur Yvette, Cedex France

Extract

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The transient X-ray source GRS 1915+105 was discovered in August 1992 with the GRANAT/WATCH all-sky monitor (Castro-Tirado et al. 1994). Subsequent VLA observations from March through April 1994 led to the discovery of apparent superluminal motion in a pair of radio condensations moving away from the compact radio core (Mirabel & Rodriguez 1994). These jet-like features are interpreted as a bipolar outflow with bulk velocity ~ 0.9c. Although no optical counterpart has been observed, due to the heavy extinction in the Galactic plane, and therefore not enabling measurements of the mass of the compact object, the hard X-ray spectrum and high luminosity (~ 1039 erg s−1), extreme variability in the X-ray light curve and the relativistic jets make GRS 1915+105 a strong black hole candidate.

Type
Session 3: Diagnostics of High Gravity Objects with X- and Gamma Rays
Information
Symposium - International Astronomical Union , Volume 188: The Hot Universe , 1998 , pp. 396 - 397
Copyright
Copyright © Kluwer 1998 

References

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