English
Related papers

Related papers: An INTEGRAL monitoring of GRS 1915+105 using simul…

200 papers

We report here the results of 2 observations performed simultaneously with INTEGRAL, RXTE, the Ryle and Nancay radio telescopes. These observations belong to the so-called $\nu$ and $\lambda$ classes of variability during which a high level…

Astrophysics · Physics 2007-05-23 J. Rodriguez , G. Pooley , D. C. Hannikainen , H. J. Lehto

Since the launch of INTEGRAL in late 2002 we have monitored the Galactic microquasar GRS 1915+105 with long exposures (~100 ks) pointings. All the observations have been conducted simultaneously with other instruments, in particular RXTE…

Astrophysics · Physics 2007-05-23 J. Rodriguez , G. Pooley , D. C. Hannikainen , H. J. Lehto

(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…

(abridged) This is the second paper presenting the results of two years of monitoring of GRS 1915+105 with \integral and \rxte and the Ryle Telescope. We present the X-ray spectral and temporal analysis of four observations which showed…

We report here the first results of the spectral and timing analysis of our simultaneous INTEGRAL/RXTE observations of GRS 1915+105. The first observation ever performed with INTEGRAL revealed a new class of variability, where changes of…

Astrophysics · Physics 2007-05-23 J. Rodriguez , D. C. Hannikainen , S. E. Shaw , C. Cabanac , Y. Fuchs

The galactic superluminal motion source GRS 1915+105 was observed with RXTE at several occasions during its ongoing active state. The observed X-ray intensity changes drastically on a variety of time scales ranging from sub-seconds to days.…

Astrophysics · Physics 2007-05-23 J. Greiner , E. H. Morgan , R. A. Remillard

GRS 1915+105 is being observed as part of an Open Time monitoring program with INTEGRAL. Three out of six observations from the monitoring program are presented here, in addition to data obtained through an exchange with other observers. We…

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 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

We present a scenario for the variability of the microquasar GRS 1915+105. This starts from previous works, leading to the tentative identification of the Accretion-Ejection Instability as the source of the low-frequency Quasi-Periodic…

Astrophysics · Physics 2009-11-10 Michel Tagger , Peggy Varniere , Jerome Rodriguez , Rene Pellat

We report the discovery of variable circularly polarised radio emission associated with relativistic ejections from GRS 1915+105, based on observations with the Australia Telescope Compact Array (ATCA) and the Multi-Element Radio-Linked…

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

Multiple near-infrared wavelengths observations, carried out since 1993 on the galactic superluminal source of relativistic ejections GRS 1915+105, have yielded three important results. 1) The infrared counterpart of GRS 1915+105 exhibits…

We investigate the connection between the X-ray and radio properties of the Galactic microquasar GRS1915+105, by analyzing the X-ray data observed with RXTE, during the presence of a huge radio flare (~450 mJy). The X-ray lightcurve shows…

Astrophysics · Physics 2009-11-06 S. V. Vadawale , A. R. Rao , A. Nandi , S. K. Chakrabarti

We present data from the first of six monitoring Open Time observations of GRS 1915+105 undertaken with the orbiting INTEGRAL satellite. The source was clearly detected with all three X-ray and gamma-ray instruments on board. GRS 1915+105…

In 1994 February-August we observed with the VLA four ejection events of radio emitting clouds from the high energy source GRS 1915+105. These events are all consistent with anti-parallel ejections of twin pairs of clouds moving away from…

Astrophysics · Physics 2009-10-30 L. F. Rodriguez , I. F. Mirabel

We present the first results of simultaneous INTEGRAL and RXTE observations of the microquasar GRS 1915+105. We focus on the analysis of the unique highly variable observation and show that we might have observed a new class of variability.…

Astrophysics · Physics 2007-05-23 J. Rodriguez , D. C. Hannikainen , O. Vilhu , Y. Fuchs , S. E. Shaw

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 present data on the monitoring of the Galactic X-ray transient GRS 1915+105 at 15 GHz with the Ryle Telescope. We have found quasi-periodic oscillations with periods in the range 20-40 min which are tentatively associated with the…

Astrophysics · Physics 2015-06-24 G. G. Pooley , R. P. Fender

We present new insights about accretion and ejection physics based on joint RXTE/Chandra HETGS studies of rapid X-ray variability in GRS 1915+105. For the first time, with fast phase-resolved spectroscopy of the rho state, we are able to…

High Energy Astrophysical Phenomena · Physics 2015-05-20 Joseph Neilsen , Julia C. Lee , Ron Remillard
‹ Prev 1 2 3 10 Next ›