308 citations · 5.2k across the 160 of their papers we have counts for
15 papers · 1 filter
INTEGRAL/IBIS Extragalactic survey: 20-100 keV selected AGN
L. Bassani, M. Molina, A. Malizia +10
Analysis of INTEGRAL Core Program and public Open Time observations performed up to April 2005 provides a sample of 62 active galactic nuclei in the 20-100 keV band above a flux li…
INTEGRAL high energy behaviour of 4U 1812-12
A. Tarana, A. Bazzano, P. Ubertini +5
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…
Is the INTEGRAL/IBIS source IGR J17204-3554 a gamma-ray emitting galaxy hidden behind the molecular cloud NGC 6334 ?
L. Bassani, A. De Rosa, A. Bazzano +9
We report on the identification of a soft gamma-ray source, IGR J17204-3554, detected with the IBIS imager on board the INTEGRAL satellite. The source has a 20-100 keV flux of ~3x1…
IGR J16393-4643: a new heavily-obscured X-ray pulsar
A. Bodaghee, R. Walter, J. A. Zurita Heras +5
An analysis of the high-energy emission from IGR J16393-4643 (=AX J1639.0-4642) is presented using data from INTEGRAL and XMM-Newton. The source is persistent in the 20-40 keV band…
Using the ROSAT Catalogues to find counterparts for the second IBIS/ISGRI Survey Sources
J. B. Stephen, L. Bassani, A. Malizia +6
The second IBIS/ISGRI survey has produced a catalogue containing 209 hard X-ray sources visible down to a flux limit of around 1 milliCrab. The point source location accuracy of ty…
INTEGRAL observations of recurrent fast X-ray transient sources
V. Sguera, E. J. Barlow, A. J. Bird +9
Fast X-ray Transients (FXTs) are believed to be non-recurrent bright X-ray sources lasting less than a day and occuring at serendipitous positions, they can best detected and disco…
Global characteristics of the first IBIS/ISGRI catalogue sources: unveiling a murky episode of binary star evolution
A. J. Dean, A. Bazzano, A. B. Hill +10
INTEGRAL is the first gamma-ray astronomy mission with a sufficient sensitivity and angular resolution combination appropriate to the detection and identification of considerable n…
The INTEGRAL/IBIS source AXJ1838.0-0655: a soft X-ray to TeV gamma-ray broad band emitter
A. Malizia, L. Bassani, J. B. Stephen +8
We report on INTEGRAL observations of AX J1838.0-0655, one of the unidentified objects listed in the first IBIS/ISGRI survey catalogue and located in the Scutum arm region. This ob…
Detection and analysis of a new INTEGRAL hard X-ray transient, IGR J17285-2922
E. J. Barlow, A. J. Bird, D. J. Clark +10
We present the transient nature of INTEGRAL source IGR J17285-2922, identified from a single period of activity during an IBIS/ISGRI Galactic Centre Deep Exposure in September 2003…
Periodic Variability During the X-ray Decline of 4U 1636-53
I. C. Shih, A. J. Bird, P. A. Charles +2
We report the onset of a large amplitude, statistically significant periodicity (~46 d) in the RXTE/ASM data of the prototype X-ray burster 4U 1636-53, the X-ray flux of which has…
Evidence of polarisation in the prompt gamma-ray emission from GRB 930131 and GRB 960924
D. R. Willis, E. J. Barlow, A. J. Bird +7
The true nature of the progenitor to GRBs remains elusive; one characteristic that would constrain our understanding of the GRB mechanism considerably is gamma-ray polarimetry meas…
The 1 - 50 keV spectral and timing analysis of IGR J18027-2016: an eclipsing, high mass X-ray binary
A. B. Hill, R. Walter, C. Knigge +9
We report the association of the INTEGRAL source IGR J18027-2016 with the BeppoSAX source SAX J1802.7-2017. IGR J18027-2016 is seen to be a weak, persistent source by the IBIS/ISGR…
INTEGRAL IGR J18135-1751=HESS J1813-178: A new cosmic high energy accelerator from keV to TeV
P. Ubertini, L. Bassani, A. Malizia +10
We report the discovery of a soft gamma ray source, namely IGR J18135-1751, detected with the IBIS imager on board the INTEGRAL satellite. The source is persistent and has a 20-100…
The broad-band X-ray spectrum of the blazar PKS B1830-211 by Chandra and INTEGRAL
A. De Rosa, L. Piro, A. Tramacere +6
In this paper we present a broad-band study of the X-ray emission of the blazar PKS1830-211 based on Chandra and Integral observations. Notwithstanding the high redshift (z=2.507),…
Using the ROSAT Bright Source Catalogue to find Counterparts for IBIS/ISGRI Survey Sources
J. B. Stephen, L. Bassani, M. Molina +7
The IBIS/ISGRI first year galactic plane survey has produced a catalogue containing 123 hard X-ray sources visible down to a flux limit of a few milliCrabs. The point source locati…