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相关论文: First INTEGRAL Observations of Eight Persistent Ne…

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We present results of all sky survey, performed with data acquired by the IBIS telescope onboard the INTEGRAL observatory over eleven years of operation, at energies above 100 keV. A catalogue of detected sources includes 132 objects. The…

The INTEGRAL satellite has been observing the gamma-ray sky for 15 years and has detected over 900 X-ray sources of various nature. However, more than 200 of these sources still lack precise identification. Our goal is to reveal the nature…

高能天体物理现象 · 物理学 2018-10-31 Francis Fortin , Sylvain Chaty , Alexis Coleiro , John Tomsick , Christian Nitschelm

We present the study of one year of INTEGRAL data on the neutron star low mass X-ray binary GX 5-1. Thanks to the excellent angular resolution and sensitivity of INTEGRAL, we are able to obtain a high quality spectrum of GX 5-1 from ~5 keV…

天体物理学 · 物理学 2009-11-11 A. Paizis , K. Ebisawa , T. Tikkanen , J. Rodriguez , J. Chenevez , E. Kuulkers , O. Vilhu , T. J. -L. Courvoisier

The INTEGRAL satellite, which studies the Universe in the hard X-ray and soft Gamma-ray domain, has been operational for 5 years now. The X-ray telescopes, which use the coded mask technique, provide unprecedented spectral and imaging…

天体物理学 · 物理学 2017-08-23 Volker Beckmann

INTEGRAL regularly scans the Galactic plane to search for new objects and in particular for absorbed sources with the bulk of their emission above 10-20 keV. The first new INTEGRAL source was discovered on 2003 January 29, 0.5 degree from…

(abridged) Hard X-ray surveys performed by the INTEGRAL satellite have discovered a conspicuous fraction (up to 30%) of unidentified objects among the detected sources. Here we continue our identification program by selecting probable…

The low mass X-ray binary system 4U 1812-12 was monitored with the INTEGRAL observatory in the period 2003-2004 and with BeppoSAX on April 20, 2000. We report here on the spectral and temporal analysis of both persistent and burst emission.…

天体物理学 · 物理学 2009-11-11 A. Tarana , A. Bazzano , P. Ubertini , M. Cocchi , D. Gotz , F. Capitanio , A. J. Bird , M. Fiocchi

We describe the INTEGRAL reference catalog which classifies previously known bright X-ray and gamma-ray sources before the launch of INTEGRAL. These sources are, or have been at least once, brighter than ~1 mCrab above 3 keV, and are…

天体物理学 · 物理学 2009-11-10 Ken Ebisawa , G. Bourban , A. Bodaghee , N. Mowlavi , T. J. -L. Courvoisier

The combination of compact objects, short period variability and peculiar chemical composition of the Ultra Compact X-ray Binaries make up a very interesting laboratory to study accretion processes and thermonuclear burning on the neutron…

天体物理学 · 物理学 2009-11-13 M. Fiocchi , A. Bazzano , P. Ubertini , A. J. Bird , L. Natalucci , V. Sguera

A number of new X-ray sources (IGR J17091-3624, IGR/XTE J17391-3021, IGR J17464-3213 (= XTE J17464-3213 = H 1743-322), IGR J17597-2201, SAX/IGR J18027-2017) have been observed with the INTEGRAL observatory during ultra deep exposure of the…

天体物理学 · 物理学 2009-11-10 A. Lutovinov , M. Revnivtsev , S. Molkov , R. Sunyaev

Since it started observing the sky, the INTEGRAL satellite has discovered new categories of high mass X-ray binaries (HMXB) in our Galaxy. These observations raise important questions on the formation and evolution of these rare and…

高能天体物理现象 · 物理学 2015-06-17 Alexis Coleiro , Sylvain Chaty , Juan A. Zurita Heras , Farid Rahoui , John A. Tomsick

We studied spectra for 34 accretion-powered X-ray and one millisecond pulsars that were within the field of view of the INTEGRAL observatory over two years (December 2002 - January 2005) of its in-orbit operation and that were detected by…

天体物理学 · 物理学 2007-05-23 E. V. Filippova , S. S. Tsygankov , A. A. Lutovinov , R. A. Sunyaev

Since it started observing the sky, the INTEGRAL satellite has revealed new categories of High Mass X-ray binaries in our Galaxy. These observations raise important questions on the formation and evolution of such rare and short-living…

高能天体物理现象 · 物理学 2013-02-18 A. Coleiro , S. Chaty , J. A. Zurita Heras , F. Rahoui , J. A. Tomsick

The Galactic bulge region is a rich host of variable high-energy point sources. Since 2005, February 17 we are monitoring the source activity in this region about every three days with INTEGRAL. Thanks to the large field of view, the…

Our collaboration is responsible for the study of a sample of 72 low mass X-ray binaries (LMXRB) using the INTEGRAL Core Programme data. In this paper we describe the monitoring programme we have started and the current variability and…

We report the discovery of persistent hard X-ray emission extending up to 150 keV from the soft gamma-ray repeater SGR 1806-20 using data obtained with the INTEGRAL satellite in 2003-2004. Previous observations of hard X-rays from objects…

天体物理学 · 物理学 2009-11-10 S. Mereghetti , D. Gotz , I. F. Mirabel , K. Hurley

The X-ray burster 4U1850-087, located in the globular cluster NGC6712, is an ultracompact binary likely harbouring a degenerate companion.The source has been observed with INTEGRAL several times, during the monitoring of the Galactic plane,…

天体物理学 · 物理学 2007-05-23 Lara Sidoli , Ada Paizis , Angela Bazzano , Sandro Mereghetti

We report on Chandra observations of 18 hard X-ray (>20 keV) sources discovered with the INTEGRAL satellite near the Galactic plane. For 14 of the INTEGRAL sources, we have uncovered one or two potential Chandra counterparts per source.…

We study the hard X-ray (20-100 keV) variability of the Galactic Center (GC) and of the nearby sources on the time scale of 1000 s. We find that 3 of the 6 hard X-ray sources detected by INTEGRAL within the central 1 degree of the Galaxy…

天体物理学 · 物理学 2007-05-23 A. Neronov , M. Chernyakova , T. J. -L. Courvoisier , R. Walter

A new type of high-energy binary system has been revealed by the INTEGRAL satellite. These sources are being unveiled by means of multi-wavelength optical, near- and mid-infrared observations. Among these sources, two distinct classes are…

天体物理学 · 物理学 2008-09-08 S. Chaty
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