Query : 2004A&A...415L..35T

2004A&A...415L..35T - Astronomy and Astrophysics, volume 415, L35-38 (2004/3-1)

Quasar jet emission model applied to the microquasar GRS 1915+105.


Abstract (from CDS):

The true nature of the radio emitting material observed to be moving relativistically in quasars and microquasars is still unclear. The microquasar community usually interprets them as distinct clouds of plasma, while the extragalactic community prefers a shock wave model. Here we show that the synchrotron variability pattern of the microquasar GRS 1915+105 observed on 15 May 1997 can be reproduced by the standard shock model for extragalactic jets, which describes well the long-term behaviour of the quasar 3C 273. This strengthens the analogy between the two classes of objects and suggests that the physics of relativistic jets is independent of the mass of the black hole. The model parameters we derive for GRS 1915+105 correspond to a rather dissipative jet flow, which is only mildly relativistic with a speed of 0.60c. We can also estimate that the shock waves form in the jet at a distance of about 1AU from the black hole.

Abstract Copyright:

Journal keyword(s): radiation mechanisms: non-thermal - stars: individual: GRS 1915+105 - infrared: stars - radio continuum: stars

Simbad objects: 2

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Number of rows : 2
N Identifier Otype ICRS (J2000)
ICRS (J2000)
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
1 3C 273 BLL 12 29 06.6998257176 +02 03 08.597629980   13.05 14.830 14.11   ~ 5833 2
2 Granat 1915+105 HXB 19 15 11.55576 +10 56 44.9052           ~ 2646 0

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