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相关论文: RXTE Observations of GRS 1915+105

200 篇论文

The variability of the X-ray flux from the pulsar GX 301-2 is analyzed by using data from the ART-P telescope of the Granat Observatory. The intensity variations with time scales of several thousand seconds are studied at various orbital…

天体物理学 · 物理学 2009-11-10 S. S. Tsygankov , A. A. Lutovinov , S. A. Grebenev , M. R. Gilfanov , R. A. Sunyaev

We performed a detailed time-resolved spectral study of GRS 1915+105 during its low-flux rebrightening phase using the broadband capabilities of AstroSat and NuSTAR in May-June 2019. The AstroSat light curves revealed erratic X-ray flares…

高能天体物理现象 · 物理学 2025-09-25 Shahzada Akhter , Sajad Boked , Bari Maqbool , Ranjeev Misra , V. Jithesh

We analyze 18 sources that were found to show interesting properties of periodicity, very soft spectra and/or large long-term variability in X-rays in our project of classification of sources from the 2XMMi-DR3 catalog but were poorly…

高能天体物理现象 · 物理学 2015-06-17 Dacheng Lin , Natalie A. Webb , Didier Barret

We present the results from a multiwavelength campaign of GRS 1915+105 performed from 2000 April 16 to 25. This is one of the largest coordinated set of observations ever performed for this source, covering the wide energy band in radio…

In this work we report on observations with the Neutron Star Interior Composition Explorer of the known neutron star X-ray transient XTE J1739-285. We observed the source in 2020 February and March, finding it in a highly active bursting…

We present evidence of a 6.4 keV emission line during a burst from the soft gamma-ray repeater SGR 1900+14. The Rossi X-ray Timing Explorer (RXTE) monitored this source extensively during its outburst in the summer of 1998. A strong burst…

天体物理学 · 物理学 2009-10-31 Tod E. Strohmayer , Alaa I. Ibrahim

We present the first results of simultaneous INTEGRAL and RXTE observations of the microquasar GRS 1915+105. We focus on the analysis of the unique highly variable observation and show that we might have observed a new class of variability.…

天体物理学 · 物理学 2007-05-23 J. Rodriguez , D. C. Hannikainen , O. Vilhu , Y. Fuchs , S. E. Shaw

(abridged) An outburst of more than 80 individual bursts, similar to those seen from Soft Gamma Repeaters (SGRs), was detected from the Anomalous X-ray Pulsar (AXP) 1E 2259+586 in 2002 June. Coincident with this burst activity were gross…

We report on the 2004 June 29 burst detected from the direction of the Anomalous X-ray Pulsar (AXP) 1E 1048.1-5937 using the Rossi X-ray Timing Explorer (RXTE). We find a simultaneous increase of ~3.5 times the quiescent value in the 2-10…

天体物理学 · 物理学 2009-11-13 Fotis P. Gavriil , Victoria M. Kaspi , Peter M. Woods

We have analyzed 3 observations of the High Mass X-ray Binary A0535+26 performed by the Rossi X-ray Timing Explorer (RXTE) 3, 5, and 6 months after the last outburst in 2011 February. We detect pulsations only in the second observation. The…

We report on a 40 ks long, uninterrupted X-ray observation of the candidate supergiant fast X-ray transient (SFXT) IGRJ16418-4532 performed with XMM-Newton on February 23, 2011. This high mass X-ray binary lies in the direction of the Norma…

高能天体物理现象 · 物理学 2015-05-30 L. Sidoli , S. Mereghetti , V. Sguera , F. Pizzolato

We report the results of XMM-Newton and BeppoSAX observations of the radio and X-ray emitting star LS I +61 303, likely associated with the gamma-ray source 2CG 135+01 and recently detected also at TeV energies. The data include a long…

V404 Cyg, Cyg X-3, V4641 Sgr, and GRS 1915+105 are among the brightest X-ray binaries and display complex behavior in their multiwavelength emission. Apart from Cyg X-3, the other three sources have large accretion disks, and there is…

高能天体物理现象 · 物理学 2020-07-08 Karri I. I. Koljonen , John A. Tomsick

GX 3$+$1, an atoll type neutron star low-mass X-ray binary, was observed four times by Soft X-ray Telescope and The Large Area X-ray Proportional Counters on-board \textit{AstroSat} between October 5, 2017 and August 9, 2018. The…

高能天体物理现象 · 物理学 2023-11-03 Neal Titus Thomas , S. B. Gudennavar , S. G. Bubbly

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…

天体物理学 · 物理学 2009-10-30 S. S. Eikenberry , K. Matthews , E. H. Morgan , R. A. Remillard , R. W. Nelson

GRS 1915+105 has been active for more than 26 years since it was discovered in 1992. There are hundreds of RXTE pointed observations on this source, and the quasi-regular flares with a slow rise and a sharp decrease (i.e. the "heartbeat"…

高能天体物理现象 · 物理学 2018-10-10 Shan-Shan Weng , Ting-Ting Wang , Jing-Ping Cai , Qi-Rong Yuan , Wei-Min Gu

We report about the multi-frequency (1-30 GHz) daily monitoring of the radio flux variability of the three microquasars: SS433, GRS1915+105 and Cyg X-3 during the period from September 2005 to May 2006. 1. We detected clear correlation of…

天体物理学 · 物理学 2007-05-23 S. A. Trushkin , N. N. Bursov , T. Kotani , N. A. Nizhelskij , M. Namiki , M. Tsuboi , P. A. Voitsik

The Galactic microquasar GRS 1915+105 exhibits several episodes of steady X-ray emission characterized by a hard power-law spectrum and intense Quasi Periodic Oscillations. It is known that there are two types of such low-hard states, one…

天体物理学 · 物理学 2009-11-06 S. V. Vadawale , A. R. Rao , S. K. Chakrabarti

The black hole transient GRS 1915+105 entered a new phase of activity in 2018, generally characterised by low X-ray and radio fluxes. This phase has been only interrupted by episodes of strong and variable radio emission, during which high…

We report for the first time the detection of long-term X-ray variability in the bright bulge source GX 354-0 (=4U 1728-34) observed with the All Sky Monitor (ASM) on board the Rossi X-Ray Timing Explorer (RXTE). The 2-year RXTE ASM…

天体物理学 · 物理学 2009-10-30 A. K. H. Kong , P. A. Charles , E. Kuulkers