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Related papers: A Persistent Disk Wind in GRS 1915+105 with NICER

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We have compared simultaneous Ryle Telescope radio and Rossi X-Ray Timing Explorer X-ray observations of the galactic microquasar GRS 1915+105, using the classification of the X-ray behaviour in terms of three states as previously…

The time-averaged 30 ks Chandra HETGS observation of the micro-quasar GRS 1915+105 in the low hard state reveals for the first time in this source neutral K absorption edges from Fe, Si, Mg, & S. Ionized resonance absorption from H-, and…

Astrophysics · Physics 2009-11-07 J. C. Lee , C. S. Reynolds , N. S. Schulz , R. Remillard , E. G. Blackman , A. C. Fabian

1RXS J180408.9-342058 is a transient neutron star low-mass X-ray binary that exhibited a bright accretion outburst in 2015. We present Nustar, Swift, and Chandra observations obtained around the peak of this outburst. The source was in a…

Accreting black holes show characteristic 'reflection' features in their X-ray spectra, including the iron K$\alpha$ fluorescence line, which result from X-rays radiated by a compact central corona being reprocessed in the accretion disc…

High Energy Astrophysical Phenomena · Physics 2019-12-18 Soumya Shreeram , Adam Ingram

We present the results of hydrodynamical simulations of the disk photosphere irradiated by strong X-rays produced in the inner most part of the disk. As expected, the irradiation heats the photosphere and drives a thermal wind. To apply our…

High Energy Astrophysical Phenomena · Physics 2015-05-18 S. Luketic , D. Proga , T. R. Kallman , J. C. Raymond , J. M. Miller

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 report detailed, long term near-infrared (NIR) light curves of GRS 1915+105 in 2007-2008, covering its long "soft state" for the first time. From our NIR monitoring and the X-ray data of the All Sky Monitor (ASM) onboard Rossi X-ray…

We report on a NICER observation of the Galactic X-ray binary and stellar-mass black hole candidate, MAXI J1535-571. The source was likely observed in an "intermediate" or "very high" state, with important contributions from both an…

X-ray disk winds are detected in spectrally soft, disk-dominated phases of stellar-mass black hole outbursts. In contrast, compact, steady, relativistic jets are detected in spectrally hard states that are dominated by non-thermal X-ray…

High Energy Astrophysical Phenomena · Physics 2015-06-11 J. M. Miller , J. Raymond , A. C. Fabian , C. S. Reynolds , A. L. King , T. R. Kallman , E. M. Cackett , M. van der Klis , D. T. H. Steeghs

We present the first detections of the black hole X-ray binary GRS 1915+105 at sub-millimetre wavelengths. We clearly detect the source at 350 GHz on two epochs, with significant variability over the 24 hr between epochs. Quasi-simultaneous…

Astrophysics · Physics 2009-10-31 R. N. Ogley , S. J. Bell Burnell , R. P. Fender , G. G. Pooley , E. B. Waltman

Three different types of very intense, quasi-regular X-ray bursts have been observed from the Galactic superluminal X-ray transient source GRS 1915+105 with the Pointed Proportional Counters of the Indian X-ray Astronomy Experiment onboard…

Astrophysics · Physics 2009-10-30 B. Paul , P. C. Agrawal , A. R. Rao

To date, mid-infrared properties of Galactic black hole binaries have barely been investigated in the framework of multi-wavelength campaigns. Yet, studies in this spectral domain are crucial to get complementary information on the presence…

High Energy Astrophysical Phenomena · Physics 2015-05-18 F. Rahoui , S. Chaty , J. Rodriguez , Y. Fuchs , I. F. Mirabel , G. G. 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

I summarize recent near-infrared spectroscopy of the microquasar GRS 1915+105 with the ESO/VLT which allowed to (i) identify the donor and (ii) measure the orbital period and radial velocity amplitude. Assuming that the jet ejections occur…

Astrophysics · Physics 2007-05-23 J. Greiner

We have analyzed the spectral variations of the superluminal black-hole X-ray binary GRS 1915+105 by using data obtained with the PCA on the Rossi XTE. We find that, despite the marked differences in the structure and the time scale of…

Astrophysics · Physics 2011-05-10 T. Belloni , M. Mendez , A. R. King , M. van der Klis , J. van Paradijs

We discuss the origin of a very unusual spectral structure observed in the Fe-K band of the Seyfert galaxy Mrk 1513, a local ($z$=0.063) active galactic nucleus (AGN) that is efficiently accreting matter onto its central supermassive black…

High Energy Astrophysical Phenomena · Physics 2023-12-20 R. Middei , E. Nardini , G. A. Matzeu , S. Bianchi , V. Braito , M. Perri , S. Puccetti

GRS 1915+105 - the first stellar-scale, highly relativistic jet source identified - is a key system for our understanding of the disc-jet coupling in accreting black hole systems. Comprehending the coupling between inflow and outflow in…

Astrophysics · Physics 2008-11-26 Rob Fender , Tomaso Belloni

X-ray signatures of outflowing gas have been detected in several accreting black-hole binaries, always in the soft state. A key question raised by these observations is whether these winds might also exist in the hard state. Here, we carry…

We report on extensive X-ray observations of the galactic superluminal motion source GRS 1915+105 with the RXTE satellite over the last year. More than 130 RXTE pointings have been performed. GRS 1915+105 displays drastic X-ray intensity…

Astrophysics · Physics 2009-10-30 J. Greiner , E. Morgan , R. Remillard

There is currently a clear discrepancy in the proper motions measured on different angular scales in the approaching radio jets of the black hole X-ray binary GRS1915+105. Lower velocities were measured with the Very Large Array (VLA) prior…