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Related papers: Modelling Oscillations in GRS 1915+105 Jet Emissio…

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The variability in the infrared to millimetre emission from microquasar GRS 1915+105 is believed to be dominated by the system's relativistic jet. In this paper we develop a time-dependent version of the Blandford & Koenigl (1979) jet…

Astrophysics · Physics 2009-11-07 Ross S. Collins , Christian R. Kaiser , Simon J. Cox

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 report high sensitivity dual-frequency observations of radio oscillations from GRS 1915+105 following the decay of a major flare event in 2000 July. The oscillations are clearly observed at both frequencies, and the time-resolved…

Astrophysics · Physics 2009-11-07 R. P. Fender , D. Rayner , S. A. Trushkin , K. O'Brien , R. J. Sault , G. G. Pooley , R. P. Norris

We show that the standard Blandford-K\"onigl model for compact conical relativistic jets has a peculiar feature: at a given observed frequency of radiation, the emission from the approaching jet arrives at the location of a distant observer…

High Energy Astrophysical Phenomena · Physics 2022-10-12 Thomas J. Maccarone , Eli C. Pattie , Alexandra J. Tetarenko

We study the temporal and spectral evolution of the radio flares detected from the relativistic ejecta in the microquasar GRS 1915+105, and develop a model which suggests that these flares are due to synchrotron radiation of relativistic…

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

The time dependent synchrotron emission from relativistic jets, and the relation between the synchrotron and ERC emission is considered within the framework of the radiative front model. The timescale and profile of the optically thin…

Astrophysics · Physics 2009-10-31 Amir Levinson

We report simultaneous observations of the black hole candidate X-ray transient GRS 1915+105 in the infrared at K and in the radio at 2 cm. Oscillations of period 26 min were observed in both wavebands, having (dereddened) peak--peak…

Astrophysics · Physics 2009-10-30 R. P. Fender , G. G. Pooley

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

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

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

The knowledge of the physical conditions occurring in the relativistic jet of radio-loud active galactic nuclei (AGNs) is important to understand the mechanisms at the basis of their multiband emission. From parsec-scale radio observations…

Cosmology and Nongalactic Astrophysics · Physics 2010-11-29 M. Orienti , G. Giovannini , D. Dallacasa , M. Giroletti , T. Venturi , F. D'Ammando , S. Vercellone , M. Tavani

In the first of a series of papers investigating emission from blazar jets from radio to high-energy {\gamma}-rays, we revisit the class of models where the jet has a uniform conical ballistic structure. We argue that by using simple…

High Energy Astrophysical Phenomena · Physics 2012-12-13 William J. Potter , Garret Cotter

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 combine a complete sample of 113 pointed observations taken with the Rossi X-ray Timing Explorer between 1996-1999, monitoring observations taken with the Ryle telescope and the Green Bank Interferometer, and selected observations with…

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 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…

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 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

We report the results of 3 observations of GRS 1915+105 during which the source is found to show the X-ray dips/spike sequences (cycles). These observations were performed simultaneously with \integral, RXTE, the Ryle and Nancay radio…

Direct multi-dimensional numerical simulation is the most reliable approach for calculating the fluid dynamics and observational signatures of relativistic jets in gamma-ray bursts (GRBs). We present a two-dimensional relativistic…

High Energy Astrophysical Phenomena · Physics 2009-05-29 Weiqun Zhang , Andrew MacFadyen
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