0000000000687575

AUTHOR

M. Cadolle-bel

showing 2 related works from this author

INTEGRAL monitoring of the Black Hole candidate 1E 1740.7-2942

2004

The brightest persistent Galactic black hole candidate close to the Galactic Centre, 1E 1740.7-2942, has long been observed with INTEGRAL. In this paper, we report on the long-term hard X-ray monitoring obtained during the first year of observations as part of the Galactic Centre Deep Exposure. We discuss the temporal and spectral behaviours in different energy bands up to 250 keV, as well as the hardness-flux correlations.

Astrophysics::High Energy Astrophysical PhenomenaAstrophysics (astro-ph)FOS: Physical sciencesAstrophysics::Cosmology and Extragalactic AstrophysicsAstrophysicsAstrophysics::Galaxy Astrophysics
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The INTEGRAL IBIS/ISGRI System Point Spread Function and Source Location Accuracy

2003

The imager on board INTEGRAL (IBIS) presently provides the most detailed sky images ever obtained at energies above 30 keV. The telescope is based on a coded aperture imaging system which allows to obtain sky images in a large field of view 29deg x 29deg with an angular resolution of 12'. The System Point Spread Function of the telescope and its detailed characteristics are here described along with the specific analysis algorithms used to derive the accurate point-like source locations. The derived location accuracy is studied using the first in-flight calibration data on strong sources for the IBIS/ISGRI system. The dependence of the calibrated location accuracy with the signal to noise r…

Point spread functionAstrophysics::High Energy Astrophysical PhenomenaData analysisFOS: Physical sciencesImage processingField of viewAstrophysicsAstrophysicsUNESCO::ASTRONOMÍA Y ASTROFÍSICAlaw.inventionTelescopeHigh angular resolutionSignal-to-noise ratioImage processinglawData analysis ; Image processing ; High angular resolutionAngular resolutionCoded aperture:ASTRONOMÍA Y ASTROFÍSICA::Astronomía óptica [UNESCO]Remote sensingIbisPhysicsbiologyUNESCO::ASTRONOMÍA Y ASTROFÍSICA::Astronomía ópticaAstrophysics (astro-ph)Astrophysics::Instrumentation and Methods for AstrophysicsAstronomy and Astrophysicsbiology.organism_classificationSpace and Planetary Science:ASTRONOMÍA Y ASTROFÍSICA [UNESCO]
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