Publications (21)
The X-/Gamma-ray camera ECLAIRs for the Gammay-ray burst mission SVOM
O. Godet, G. Nasser, J. -L. Atteia +21
We present ECLAIRs, the Gamma-ray burst (GRB) trigger camera to fly on-board the Chinese-French mission SVOM. ECLAIRs is a wide-field (\,sr) coded mask camera with a mask t…
Early SPI/INTEGRAL measurements of galactic 511 keV line emission from positron annihilation
P. Jean, J. Knoedlseder, V. Lonjou +18
We report the first measurements of the 511 keV line emission from the Galactic Centre (GC) region performed with the spectrometer SPI on the space observatory INTEGRAL (Internatio…
SPI/INTEGRAL observation of the Galactic central radian: contribution of discrete sources and implication for the diffuse emission
L. Bouchet, J. P. Roques, P. Mandrou +4
The INTEGRAL observatory has been performing a deep survey of the Galactic central radian since 2003, with the goal of both extracting a catalog of sources and gaining insight into…
Monte-Carlo simulations of the background of the coded-mask camera for X- and Gamma-rays on-board the Chinese-French GRB mission SVOM
O. Godet, P. Sizun, D. Barret +4
For several decades now, wide-field coded mask cameras have been used with success to localise Gamma-ray bursts (GRBs). In these instruments, the event count rate is dominated by t…
The future Gamma-Ray Burst Mission SVOM
S. Schanne, J. Paul, J. Wei +13
We present the Space-based multi-band astronomical Variable Object Monitor (SVOM), a future satellite mission for Gamma-Ray Burst (GRB) studies, developed in cooperation between th…
SPI Measurements of the Diffuse Galactic Hard X-ray Continuum
A. W. Strong, R. Diehl, H. Halloin +6
INTEGRAL Spectrometer SPI data from the first year of the Galactic Centre Deep Exposure has been analysed for the diffuse continuum from the Galactic ridge. A new catalogue of sour…
The ECLAIRs micro-satellite mission for gamma-ray burst multi-wavelength observations
S. Schanne, J. -L. Atteia, D. Barret +17
Gamma-ray bursts (GRB), at least those with a duration longer than a few seconds are the most energetic events in the Universe and occur at cosmological distances. The ECLAIRs micr…
The Wide-Field X and Gamma-Ray Telescope ECLAIRs aboard the Gamma-Ray Burst Multi-Wavelength Space Mission SVOM
P. Mandrou, S. Schanne, B. Cordier +10
The X and Gamma-ray telescope ECLAIRs is foreseen to be launched on a low Earth orbit (h=630 km, i=30 degrees) aboard the SVOM satellite (Space-based multi-band astronomical Variab…
Gamma-ray continuum emission from the inner Galactic region as observed with INTEGRAL/SPI
A. W. Strong, R. Diehl, H. Halloin +5
The diffuse continuum emission from the Galactic plane in the energy range 18-1000 keV has been studied using 16 Ms of data from the SPI instrument on INTEGRAL. With such an exposu…
The ECLAIRs micro-satellite for multi-wavelength studies of gamma-ray burst prompt emission
S. Schanne, J. -L. Atteia, D. Barret +15
The cosmological revolution of 1997 has established that (at least long duration) gamma-ray bursts (GRB) are among the most energetic events in the Universe and occur at cosmologic…
SVOM: a new mission for Gamma-Ray Burst Studies
D. Gotz, J. Paul, S. Basa +14
We present the SVOM (Space-based multi-band astronomical Variable Object Monitor) mission, that is being developed in cooperation between the Chinese National Space Agency (CNSA),…
Calibration of the Spectrometer aboard the INTEGRAL satellite
Stéphane Schanne, B. Cordier, M. Gros +27
SPI, the Spectrometer on board the ESA INTEGRAL satellite, to be launched in October 2002, will study the gamma-ray sky in the 20 keV to 8 MeV energy band with a spectral resolutio…
Hard X-ray sky survey with the SIGMA telescope aboard GRANAT observatory
M. G. Revnivtsev, R. A. Sunyaev, M. R. Gilfanov +5
During the lifetime of GRANAT orbital observatory the SIGMA telescope collected X-ray images of more than 1/4 of the whole sky. Among these regions the Galactic Center had largest…
SIGMA Observations of the Bursting Pulsar GRO J1744-28
J. Mejia, T. Villela, P. Goldoni +13
We present the results of the GRANAT/SIGMA hard X-/soft gamma-ray long-term monitoring of the Galactic Center (GC) region concerning the source GRO J1744-28, discovered on 1995 Dec…
Possibility of the detection of classical novae with the shield of the INTEGRAL-spectrometer SPI
P. Jean, J. Gomez-Gomar, M. Hernanz +7
The shield of the INTEGRAL spectrometer provides a large detection area with a wide field-of-view. Calculations have been performed to check whether the temporal analysis of the co…
Early SPI/INTEGRAL contraints on the morphology of the 511 keV line emission in the 4th galactic quadrant
J. Knodlseder, V. Lonjou, P. Jean +11
We provide first constraints on the morphology of the 511 keV line emission from the galactic centre region on basis of data taken with the spectrometer SPI on the INTEGRAL gamma-r…
Two Distinct Modes In The Low (Hard) State Of Cyg X-1 And 1E1740-294
S. Kuznetsov, M. Gilfanov, E. Churazov +12
The entire dataset of the GRANAT/SIGMA observations of Cyg X-1 and 1E1740.7-294 in 1990-1994 was analyzed in order to search for correlations between primary observational characte…
SPI/INTEGRAL in-flight performance
J. -P. Roques, S. Schanne, A. von Kienlin +23
The SPI instrument has been launched on-board the INTEGRAL observatory on October 17, 2002. SPI is a spectrometer devoted to the sky observation in the 20 keV-8 MeV energy range us…
Deep SIGMA observations of the central square degree of the Galaxy
P. Goldoni, A. Goldwurm, F. Lebrun +13
The Center of the Milky Way emits radiation through all the electromagnetic spectrum due to the presence of several astrophysical phenomena. Various scientifical questions remain u…
SPI/INTEGRAL observation of the Cygnus region
L. Bouchet, E. Jourdain, J. -P. Roques +22
We present the analysis of the first observations of the Cygnus region by the SPI spectrometer onboard the Integral Gamma Ray Observatory, encompassing 600 ks of data. Thr…
INTEGRAL/SPI ground calibration
D. Attié, B. Cordier, M. Gros +30
Three calibration campaigns of the spectrometer SPI have been performed before launch in order to determine the instrument characteristics, such as the effective detection area, th…