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相关论文: Infrared synchrotron oscillations in GRS 1915+105

200 篇论文

Using the flux resolved spectroscopy for the first time, we analyse the RXTE/PCA data of the black hole X-ray binaries GRS 1915+105 and IGR J17091-3624, when both sources show large amplitude, quasi-regular oscillations in 2.0-60.0 keV…

高能天体物理现象 · 物理学 2015-06-17 Mayukh Pahari , Ranjeev Misra , Arunava Mukherjee , J. S. Yadav , S. K. Pandey

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…

天体物理学 · 物理学 2009-11-10 Michel Tagger , Peggy Varniere , Jerome Rodriguez , Rene Pellat

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

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 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…

天体物理学 · 物理学 2009-10-30 J. Greiner , E. Morgan , R. Remillard

(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…

Galactic black hole candidates GRS 1915+105 and IGR J17091-3624 have many similarities in their light curves and spectral properties. However, very little is known about the orbital elements of their companions. In case the orbits are…

高能天体物理现象 · 物理学 2016-08-10 Arindam Ghosh , 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…

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…

高能天体物理现象 · 物理学 2019-12-18 Soumya Shreeram , Adam Ingram

We present a new dynamical study of the black hole X-ray transient GRS1915+105 making use of near-infrared spectroscopy obtained with X-shooter at the VLT. We detect a large number of donor star absorption features across a wide range of…

高能天体物理现象 · 物理学 2015-06-15 D. Steeghs , J. E. McClintock , S. G. Parsons , M. J. Reid , S. Littlefair , V. S. Dhillon

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

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

The thesis is mainly devoted to the study of spectral and timing characteristics of the X-ray emission from Galactic black hole candidates GRS 1915+105, GX 339-4, 4U 1630-47, XTE J1748-288, GRS 1739-278, KS/GRS 1730-312 and GRS 1737-31. The…

天体物理学 · 物理学 2007-05-23 Sergey P. Trudolyubov

We present the first detailed phase-resolved spectral analysis of a joint Chandra High Energy Transmission Grating Spectrometer and Rossi X-ray Timing Explorer observation of the rho variability class in the microquasar GRS 1915+105. The…

高能天体物理现象 · 物理学 2015-05-28 Joseph Neilsen , Ronald A. Remillard , Julia C. Lee

The black hole X-ray binary GRS 1915+105 was bright for 26 years since its discovery and is well-known for its disk instabilities, quasi-periodic oscillations, and disk wind signatures. We report a long-term spectral-timing tracing of this…

高能天体物理现象 · 物理学 2025-02-05 M. Zhou , V. Grinberg , A. Santangelo , C. Bambi , Q. Bu , C. M. Diez , L. Kong , J. F. Steiner , Y. Tuo

GRS 1915+105, one of the two known galactic microquasars, shows an extremely complex variability in the X-ray band, comparable to no other X-ray source in the sky. Making use of RXTE/PCA data, we have analyzed the X-ray spectral…

天体物理学 · 物理学 2015-06-24 T. Belloni , M. Mendez , A. R. King , M. van der Klis , J. van Paradijs

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…

高能天体物理现象 · 物理学 2015-05-20 Joseph Neilsen , Julia C. Lee , Ron Remillard

We observed the galactic microquasar GRS1915+105 in the K ($2.2 \mu$m) band on October 16 and 17, 1995 UTC using the COB infrared (IR) imager on the Kitt Peak National Observatory 2.1-m telescope with a 0.2-arcsec/pixel plate scale and…

天体物理学 · 物理学 2016-08-30 Stephen S. Eikenberry , Giovanni G. Fazio

We report the discovery of two new types of variability in the neutron star low-mass X-ray binary MXB 1730-335 (the 'Rapid Burster'). In one observation in 1999, it exhibits a large-amplitude quasi-periodic oscillation with a period of…

高能天体物理现象 · 物理学 2015-06-24 T. Bagnoli , J. J. M. in 't Zand

We present evidence of a direct accretion disk-jet connection in the Galactic microquasar GRS 1915+105 based on our analysis of RXTE/PCA data with a ``spike'' in X-ray light curves. We find that the radio emission increases as the hardness…

天体物理学 · 物理学 2009-10-31 J. S. Yadav