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Detection of hard X-ray emission from the Galactic nuclear region with INTEGRAL
G. Belanger, A. Goldwurm, P. Goldoni +13
This letter presents the first results of an observational campaign to study the Galactic Centre with INTEGRAL. The mosaicked images obtained with the IBIS/ISGRI coded aperture ins…
The observers' view of (very) long X-ray bursts: they are super!
Erik Kuulkers
In many X-ray point sources on the sky, the X-ray emission arises because hydrogen and/or helium is accreted onto a neutron star from a nearby donor star. When this matter settles…
A superburst from 4U 1254-690
J. J. M. in 't Zand, E. Kuulkers, F. Verbunt +2
We report the detection with the BeppoSAX Wide Field Cameras of a superburst from 4U 1254-690. The superburst is preceded by a normal type-I X-ray burst, has a decay time that is t…
Periodic Thermonuclear X-ray Bursts from GS 1826-24 and the Fuel Composition as a Function of Accretion Rate
D. K. Galloway, A. Cumming, E. Kuulkers +3
We analyze 24 type I X-ray bursts from GS 1826-24 observed by the Rossi X-ray Timing Explorer between 1997 November and 2002 July. The bursts observed between 1997-98 were consiste…
The INTEGRAL ground segment and its science operations centre
R. Much, P. Barr, L. Hansson +10
The INTEGRAL ground segment is divided into operational and scientific components. The operational component consists of the Mission Operations Centre, the ground stations and comm…
First INTEGRAL Observations of Eight Persistent Neutron Star Low Mass X-ray Binaries
A. Paizis, V. Beckmann, T. J. -L. Courvoisier +16
Early results from the INTEGRAL Core Program, for a sample of eight persistently bright neutron star low mass X-ray binaries in the energy range from 5 keV to 200 keV are presented…