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Related papers: Is GRS 1915+105 a microquasar?

200 papers

We present Atacama Large Millimetre/Sub-Millimetre Array (ALMA) observations of IRAS 19132+1035, a candidate jet-ISM interaction zone near the black hole X-ray binary (BHXB) GRS 1915+105. With these ALMA observations (combining data from…

High Energy Astrophysical Phenomena · Physics 2018-01-31 A. J. Tetarenko , P. Freeman , E. W. Rosolowsky , J. C. A Miller-Jones , G. R. Sivakoff

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

GRS 1915+105 is a well-known X-ray binary system composed of a black hole with a low-mass companion star and is recognized for emitting relativistic jets. Imazato et al. (2021) performed extensive polarimetry in a near-infrared (NIR) Ks…

Instrumentation and Methods for Astrophysics · Physics 2025-01-07 Jin Inokuchi , Koji S. Kawabata , Makoto Uemura , Hiroyuki Hiraga

Millimeter observations of the galactic source of relativistic ejections GRS 1915+105 (Mirabel & Rodriguez 1994) are consistent with this source being at a kinematic distance D = 12.5 +/- 1.5 kpc from the Sun, behind the core of a molecular…

Astrophysics · Physics 2007-05-23 S. Chaty , I. F. Mirabel , P. -A. Duc , J. E. Wink , L. F. Rodríguez

I report the detection of circular polarisation, associated with relativistic ejections, from the `microquasar' GRS 1915+105. I further compare detections and limits of circular polarisation and circular-to-linear polarisation ratios in…

Astrophysics · Physics 2009-11-07 Rob Fender

We present high resolution MERLIN radio images of multiple relativistic ejections from GRS 1915+105 in 1997 October / November. The observations were made at a time of complex radio behaviour, corresponding to multiple optically-thin…

A series of observations of microquasar GRS1915+105 were made by the MERLIN telescope array in the spring of 2003 at 18 cm. The images show polarization in the jet components, with two epochs displaying Faraday rotation of about 2500…

Astrophysics · Physics 2007-05-23 I. K. Brown

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…

GRS 1915$+$105 was the stellar-mass black hole that best reproduced key phenomena that are also observed in Type-1 active galactic nuclei. In recent years, however, it has evolved to resemble a Type-2 or Compton-thick AGN. Herein, we report…

Microquasar (MQ) jets are sites of particle acceleration and synchrotron emission. Such synchrotron radiation has been detected coming from jet regions of different spatial scales, which for the instruments at work nowadays appear as…

Astrophysics · Physics 2008-11-26 V. Bosch-Ramon

I present an overview of past, present and future research on microquasars and jets, showing that microquasars, i.e. galactic jet sources, are among the best laboratories for high energy phenomena and astroparticle physics. After reminding…

Astrophysics · Physics 2007-05-23 Sylvain Chaty

We report preliminary results of mid-infrared (MIR) and X-ray observations of GRS 1915+105 that we carried out between 2004 October 2 and 2006 June 5. Our main goals were to study its variability, to detect the presence of dust, and to…

Astrophysics · Physics 2009-04-14 F. Rahoui , S. Chaty , J. Rodriguez , Y. Fuchs , I. F. Mirabel

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…

The Galactic black hole transient GRS1915+105 is famous for its markedly variable X-ray and radio behaviour, and for being the archetypal galactic source of relativistic jets. It entered an X-ray outburst in 1992 and has been active ever…

High Energy Astrophysical Phenomena · Physics 2021-03-03 S. E. Motta , J. J. E. Kajava , M. Giustini , D. R. A. Williams , M. Del Santo , R. Fender , D. A. Green , I. Heywood , L. Rhodes , A. Segreto , G. Sivakoff , P. A. Woudt

Comparison of the detailed calculations of the synchrotron radiation of expanding magnetized clouds with the temporal and spectral evolution of radio flares observed from the recently discovered galactic microquasar GRS 1915+105 imposes…

Astrophysics · Physics 2007-05-23 A. M. Atoyan , F. A. Aharonian

We present a progress report on MERLIN radio imaging of a radio outburst from GRS 1915+105. The major ejection occurred at the end of an approximately 20-day `plateau' state, characterised by low/hard X-ray fluxes and a relatively strong…

We present GMRT observations of the Galactic microquasar GRS 1915+105 at 1.28 GHz for 8 days from 2001 June 18 to July 1. We have seen several isolated radio flares of varying magnitudes (20 - 50 mJy) and durations (6 - 35 min) and we model…

Astrophysics · Physics 2009-11-07 C. H. Ishwara-Chandra , J. S. Yadav , A. Pramesh Rao

Resolution of both approaching and receding ejecta in the galactic microquasars makes possible to measure the flux ratio S_a/S_r of the twin ejecta, which contains an important information about the nature of the jets. We show that the flux…

Astrophysics · Physics 2009-10-30 A. M. Atoyan , F. A. Aharonian

We calculate the minimum value of the power in kinetic bulk motion of the galactic superluminal source GRS 1915+105. This value far exceeds the Eddington luminosity for accretion onto a black hole of 10 solar masses. This large value…

Astrophysics · Physics 2009-10-31 M. Gliozzi , G. Bodo , G. Ghisellini

GRS 1915+105 has exhibited at least three modes of long-wavelength (infrared to radio) flares. Class A flares are the bright ($\sim 1$ Jy) radio events whose apparent superluminal motion in many ways defines the microquasars. Class B flares…

Astrophysics · Physics 2007-05-23 Stephen Eikenberry