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相关论文: Repeated Relativistic Ejections in GRS 1915+105

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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…

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…

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

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…

天体物理学 · 物理学 2009-10-30 A. M. Atoyan , F. A. Aharonian

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…

天体物理学 · 物理学 2007-05-23 S. Chaty , I. F. Mirabel , L. F. Rodriguez , P. -A. Duc , M. Sauvage , A. J. Castro-Tirado , P. Callanan

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…

天体物理学 · 物理学 2009-11-07 R. P. Fender , D. Rayner , D. G. McCormick , T. W. B. Muxlow , G. G. Pooley , R. J. Sault , R. E. Spencer

We have observed an extended region surrounding the first discovered galactic superluminal source GRS 1915+105, seeking evidence of interaction between the relativistic ejecta of that object and the interstellar medium. We find two radio…

天体物理学 · 物理学 2009-10-31 S. Chaty , L. F. Rodriguez , I. F. Mirabel , T. R. Geballe , Y. Fuchs , A. Claret , C. J. Cesarsky , D. Cesarsky

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…

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…

天体物理学 · 物理学 2007-05-23 A. M. Atoyan , F. A. Aharonian

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.…

天体物理学 · 物理学 2007-05-23 J. Greiner , E. H. Morgan , R. A. Remillard

We calculate the flux and size ratio of radio emitting features moving in antiparallel directions at relativistic speeds, taking into account that the pattern we observe may move at a velocity different from the one of the emitting plasma.…

天体物理学 · 物理学 2016-08-30 Gianluigi Bodo , Gabriele Ghisellini

We compare Very Large Array observations of GRS 1915+105 made in 1994 and 2023, with nearly three decades of difference. The source has experienced intriguing major changes. The position angle of the bipolar ejecta in the plane of the sky…

高能天体物理现象 · 物理学 2025-05-20 Luis F. Rodriguez , I. Felix Mirabel

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…

天体物理学 · 物理学 2007-05-23 S. Chaty , I. F. Mirabel , P. -A. Duc , J. E. Wink , L. F. Rodríguez

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…

天体物理学 · 物理学 2009-10-31 R. P. Fender , G. G. Pooley

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…

天体物理学 · 物理学 2007-05-23 J. Rodriguez , G. Pooley , D. C. Hannikainen , H. J. Lehto

We investigate the association between the radio ``plateau'' states and the large superluminal flares in GRS 1915+105 and propose a qualitative scenario to explain this association. We identify several candidate superluminal flare events…

天体物理学 · 物理学 2009-11-10 S. V. Vadawale , A. R. Rao , S. Naik , J. S. Yadav , C. H. Ishwara-Chandra , A. Pramesh Rao , G. G. Pooley

The radio emitting X-ray binary GRS 1915+105 shows a wide variety of X-ray and radio states. We present a decade of monitoring observations, with the RXTE-ASM and the Ryle Telescope, in conjunction with high-resolution radio observations…

星系天体物理 · 物理学 2015-05-14 A. Rushton , R. E. Spencer , G. Pooley , S. Trushkin

We present 5-GHz MERLIN radio images of the microquasar GRS 1915+105 during two separate outbursts in 2001 March and 2001 July, following the evolution of the jet components as they move outwards from the core of the system. Proper motions…

To unravel the effect of likely interactions between the energetic ejections of the galactic superluminal source GRS 1915+105 and its surrounding interstellar medium, we observed its environment. Two IRAS sources are symmetrically placed…

天体物理学 · 物理学 2016-08-30 S. Chaty , L. F. Rodriguez , I. F. Mirabel

The jets of GRS 1915+105 carry a considerable energy away from the central source into the ISM. The similarity of the jets of this source and jets in radio galaxies or radio-loud quasars suggests that we should detect large-scale,…

天体物理学 · 物理学 2009-11-10 Christian R. Kaiser , Katherine F. Gunn , Catherine Brocksopp , J. L. Sokoloski

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…

天体物理学 · 物理学 2007-05-23 A. M. Atoyan , F. A. Aharonian
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