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Related papers: Observations of Rapid Disk-Jet Interaction in GRS …

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We present evidence that ~ 30 minute episodes of jet formation in the Galactic microquasar GRS 1915+105 may sometimes entirely be a superposition of smaller, faster phenomena. We base this conclusion on simultaneous X-ray and infrared…

Astrophysics · Physics 2009-11-10 David M. Rothstein , Stephen S. Eikenberry , Keith Matthews

We report the discovery of fast (~ 100 sec) 2.2 micron flares from the microquasar GRS 1915+105, which are superimposed on longer (~ 30 min), brighter flares corresponding to episodes of jet formation. The number and strength of the…

Astrophysics · Physics 2007-05-23 David M. Rothstein , Stephen S. Eikenberry

We report simultaneous X-ray and infrared (IR) observations of the Galactic microquasar GRS1915+105 using XTE and the Palomar 200-inch telescope on August 13-15, 1997 UTC. During the last two nights, the microquasar GRS 1915+105 exhibited…

Astrophysics · Physics 2009-10-30 S. S. Eikenberry , K. Matthews , E. H. Morgan , R. A. Remillard , R. W. Nelson

We present simultaneous infrared and X-ray observations of the Galactic microquasar GRS 1915+105 using the Palomar 5-m telescope and Rossi X-ray Timing Explorer on July 10, 1998 UT. Over the course of 5 hours, we observed 6 faint infrared…

Astrophysics · Physics 2009-10-31 S. Eikenberry , K. Matthews , M. Muno , P. Blanco , E. Morgan , R. Remillard

We have analyzed in detail a set of Rossi X-ray Timing Explorer (RXTE) observations of the galactic microquasar GRS 1915+105 corresponding to times when quasi-periodic oscillations in the infrared have been reported. From time-resolved…

Astrophysics · Physics 2007-05-23 T. Belloni , S. Migliari , R. P. Fender

We report imaging photometry of the radio-jet black hole candidate source GRS 1915+105 in the infrared K band. The observations reveal rapid infrared flare events on timescales of less than an hour. These events are strikingly similar to…

Astrophysics · Physics 2016-01-13 R. P. Fender , G. G. Pooley , C. Brocksopp , S. J. Newell

We analyzed radio and X-ray observations of GRS 1915+105, between May 1995 and June 2006, focusing on the times characterized by radio flares and cycles of hard dips-soft spikes in the X-ray lightcurve. Assuming these flares to be discrete…

High Energy Astrophysical Phenomena · Physics 2015-05-19 Lionel Prat , Jérôme Rodriguez , Guy Pooley

We report simultaneous millimetre and infrared observations of a sequence of very large amplitude quasi-periodic oscillations from the black hole X-ray binary GRS 1915+105. These oscillations are near the end of a sequence of over 700…

Astrophysics · Physics 2009-10-31 R. P. Fender , G. G. Pooley

We have compared simultaneous Ryle Telescope (RT) radio and Rossi X-Ray Timing Explorer (RXTE) X-ray observations of the galactic microquasar GRS 1915+105. We find that radio emission, and therefore also the radio jet, requires the presence…

We present evidence of a direct accretion disk-jet connection in the Galactic microquasar GRS 1915+105 based on our analysis of RXTE/PCA data with a ``spike'' in X-ray light curves. We find that the radio emission increases as the hardness…

Astrophysics · Physics 2009-10-31 J. S. Yadav

Monitoring with the Ryle Telescope at 15 GHz of the Galactic X-ray transient source GRS 1915+105 has revealed a remarkable range of rapid and extended flares which appear to be related to the X-ray emission as recorded by the RXTE all-sky…

Astrophysics · Physics 2007-05-23 G. G. Pooley , R. P. Fender

The microquasar GRS~1915+105 is known for its spectacular discrete ejections. They occur unexpectedly, thus their inception escapes direct observation. It has been shown that the X-ray flux increases in the hours leading up to a major…

High Energy Astrophysical Phenomena · Physics 2016-07-20 Brian Punsly , Jerome Rodriguez , Sergei A. Trushkin

We report infrared observations of the microquasar GRS 1915+105 using the NICMOS instrument of the Hubble Space Telescope during 9 visits in April-June 2003. During epochs of high X-ray/radio activity near the beginning and end of this…

We report the detection of a series of X-ray dips in the Galactic black hole candidate GRS 1915+105 during 1999 June 6-17 from observations carried out with the Pointed Proportional Counters of the Indian X-ray Astronomy Experiment on board…

Astrophysics · Physics 2009-10-31 S. Naik , P. C. Agrawal , A. R. Rao , B. Paul , S. Seetha , K. Kasturirangan

We present near-infrared medium-resolution ($R \sim 875$) spectra of the microquasar GRS 1915+105 on 1997 August 13-15 UTC from the Hale 200-inch telescope. The spectra showed broad emission lines of He I (2.058 $\mu$m) and H I (2.166…

We present results of our analysis of a set of RXTE/PCA observations of X-ray flares/bursts with burst cycle ranging from 30 to 1300 s from the Galactic X-ray transient source GRS 1915+105 during last four years. These flares/bursts can be…

Astrophysics · Physics 2007-05-23 J. S. Yadav , A. R. Rao

We present time resolved X-ray spectroscopy of the microquasar GRS1915+105 with the MAXI observatory in order to study the accretion state just before and during the ejections associated with its major flares. Radio monitoring with the…

Astrophysics of Galaxies · Physics 2014-03-05 Brian Punsly , Jerome Rodriguez , Sergei A. Trushkin

A near-infrared jet emanating from the galactic superluminal source GRS 1915+105, discovered at $\lambda$ = 2.2 micrometer by Sams et al. (1996) on 18-21 July 1995, was not seen later anymore, neither in the Mirabel et al. (1996) images,…

Astrophysics · Physics 2007-05-23 S. Chaty , I. F. Mirabel

We report simultaneous observations in the X-ray, infrared, and radio wavelengths of the galactic superluminal source GRS 1915+105. During episodes of rapid disappearance and follow up replenishment of the inner accretion disk evidenced by…

Astrophysics · Physics 2007-05-23 I. F. Mirabel , V. Dhawan , S. Chaty , L. F. Rodriguez , J. Marti , C. R. Robinson , J. Swank , T. Geballe

(Abridged) We report the results of monitoring observations of the Galactic microquasar GRS 1915+105 performed simultaneously with INTEGRAL and RXTE Ryle . We present the results of the whole \integral campaign, report the sources that are…

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