Infrared observations and energetic outburst of GRS 1915+105

Details Infrared observations and energetic outburst of GRS 1915+105 Infrared observations and energetic outburst of GRS 1915+105

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aipc..410..917c&link_type=abstract

The fourth compton symposium. AIP Conference Proceedings, Volume 410, pp. 917-921 (1997).

Computer Science

X-Ray Sources, X-Ray Bursts, Black Holes, Near Infrared, Luminosities, Magnitudes, Effective Temperatures, Colors, And Spectral Classification

Scientific paper

Many near-infrared wavelengths observations, carried out since 1993 on the galactic superluminal source of relativistic ejections GRS 1915+105, have yielded the following important results: 1) The infrared counterpart of the microquasar GRS 1915+105 exhibits various variations in the 1.2-2.2 μm band: the strongest are of ~1 magnitude in a few hours and of ~2 magnitudes over longer intervals of time [2]. 2) The strikingly similar infrared properties of GRS 1915+105 and of SS 433 suggest that GRS 1915+105 consists of a collapsed object (neutron star or black hole) with a thick accretion disk in a high mass and luminous binary system [2]. 3) During an intense and long-term X-ray outburst of GRS 1915+105 in 1995 August, we observed the time-delayed reverberation of the radio flare and ejection event in the infrared wavelengths, the observed spectrum of the enhanced infrared emission suggesting the appearance of a warm dust component [6]. 4) A near-infrared jet, ejected by GRS 1915+105, discovered by Sams et al. (1996), was not seen by us, 17 days later. We derive some implications about the radiative lifetime of the electrons involved in this jet emission [1].

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