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The asymmetric compact jet of GRS 1915+105

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arxiv astro-ph/0412657 v1 pith:ZJ76I7OS submitted 2004-12-29 astro-ph

The asymmetric compact jet of GRS 1915+105

M. Ribo (1) , V. Dhawan (2) , I.F. Mirabel (1 , 3) ((1) Service d'Astrophysique , CEA Saclay , France , (2) National Radio Astronomy Observatory , USA
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(3) Instituto de Astronomia y Fisica del Espacio CONICET Argentina)
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We present multiepoch VLBA observations of the compact jet of GRS 1915+105 conducted at 15.0 and 8.4 GHz during a {\it plateau} state of the source in 2003 March-April. These observations show that the compact jet is clearly asymmetric. Assuming an intrinsically symmetric continuous jet flow, using Doppler boosting arguments and an angle to the line of sight of $\theta=70\degr$, we obtain values for the velocity of the flow in the range 0.3--0.5$c$. These values are much higher than in previous observations of such compact jet, although much lower than the highly relativistic values found during individual ejection events. These preliminary results are compatible with current ideas on the jet flow velocity for black holes in the low/hard state.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. Distinct Jet Properties in the X-Ray-Obscured State of GRS 1915+105

    astro-ph.HE 2026-07 conditional novelty 6.0

    VLBI observations during 2025 radio flares find no detectable jet motion in GRS 1915+105, implying its obscured-state jets are slower (βΓ≲0.40) than the pre-2019 relativistic jets.