En 1970, des vols ballons ont mis en évidence une structure dans le spectre d'émission gamma de la région du centre Galactique. Située vers 511 keV, cette signature spectrale a rapidement été...
En 1970, des vols ballons ont mis en évidence une structure dans le spectre d'émission gamma de la région du centre Galactique. Située vers 511 keV, cette signature spectrale a rapidement été...
En 1970, des vols ballons ont mis en évidence une structure dans le spectre d'émission gamma de la région du centre Galactique. Située vers 511 keV, cette signature spectrale a rapidement été...
En 1970, des vols ballons ont mis en évidence une structure dans le spectre d'émission gamma de la région du centre Galactique. Située vers 511 keV, cette signature spectrale a rapidement été...
Continuum gamma-ray emission from light dark matter positrons and electrons (2007)
Sizun, Patrick, Cassé, Michel, Schanne, Stéphane
The annihilation of light dark matter was recently advocated as a possible explanation of the large positron injection rate at the Galactic center deduced from observations by the SPI spectrometer...
The INTEGRAL/SPI response and the Crab observations (2007)
Sizun, Patrick, Shrader, C. R., Attié, D., Dubath, P., Schanne, S., Cordier, B., ...
The Crab region was observed several times by INTEGRAL for calibration purposes. This paper aims at underlining the systematic interactions between (i) observations of this reference source, (ii)...
Constraints on the injection energy of positrons in the Galactic centre region (2007)
Sizun, Patrick, Cassé, Michel, Schanne, Stéphane, Cordier, Bertrand
Recent observations of the 511 keV positron-electron annihilation line in the Galactic centre region by the INTEGRAL/SPI spectrometer have stirred up new speculations about the origin of the large...
Constraints on the injection energy of positrons in the Galactic centre region (2007)
Sizun, Patrick, Cassé, Michel, Schanne, Stéphane, Cordier, Bertrand
Recent observations of the 511 keV positron-electron annihilation line in the Galactic centre region by the INTEGRAL/SPI spectrometer have stirred up new speculations about the origin of the large...
The INTEGRAL/SPI response and the Crab observations (2007)
Sizun, Patrick, Shrader, C. R., Attié, D., Dubath, P., Schanne, S., Cordier, B., ...
The Crab region was observed several times by INTEGRAL for calibration purposes. This paper aims at underlining the systematic interactions between (i) observations of this reference source, (ii)...
Constraints on the injection energy of positrons in the Galactic centre region (2007)
Sizun, Patrick, Cassé, Michel, Schanne, Stéphane, Cordier, Bertrand
Recent observations of the 511 keV positron-electron annihilation line in the Galactic centre region by the INTEGRAL/SPI spectrometer have stirred up new speculations about the origin of the large...
Schanne, Stephane, Sizun, Patrick, Maurin, David, Cordier, Bertrand, Von Kienlin, Andreas, Hamadache, Clarisse
The Vela region is a promising target for the detection of 1.8 MeV gamma-rays emitted by the decays of radioactive 26Al isotopes produced in hydrostatic or explosive stellar nucleosynthesis...
INTEGRAL Observations of the Vela Region Focusing on Vela X-1 (2007)
Schanne, Stephane, Gotz, Diego, Gerard, Lucie, Sizun, Patrick, Falanga, Maurizio, Hamadache, Clarisse, ...
The Vela region has been observed for 1.7 Ms in November 2005 by the INTEGRAL satellite. We present preliminary spectral and temporal results of Vela X-1, an eclipsing neutron star hosted in a...
Schanne, Stéphane, Sizun, Patrick, Maurin, David, Cordier, Bertrand, Von Kienlin, Andreas, Hamadache, Clarisse
INTEGRAL observations of the Vela region focusing on Vela X-1 (2007)
Schanne, Stéphane, Götz, Diego, Gérard, Lucie, Sizun, Patrick, Falanga, Maurizio, Hamadache, Clarisse, ...
Type Ia Supernova Rate in the Galactic Center Region (2006)
Schanne, Stephane, Casse, Michel, Sizun, Patrick, Cordier, Bertrand, Paul, Jacques
According to recent analyses of the type-Ia supernova rate as a function of redshift, delayed and prompt type-Ia supernovae (SN Ia) should explode respectively in the Galactic bulge and in the...
Soft gamma-ray background and light Dark Matter annihilation (2005)
Rasera, Yann, Teyssier, Romain, Sizun, Patrick, Casse, Michel, Fayet, Pierre, Cordier, Bertrand, ...
The bulk of the extragalactic background between 10 keV and 10 GeV is likely to be explained by the emission of Seyfert galaxies, type Ia supernovae, and blazars. However, as revealed by the INTEGRAL...
Cadolle Bel, Marion, Goldwurm, Andrea, Rodriguez, Jerome, Goldoni, Paolo, Corbel, Stephane, Sizun, Patrick, ...
We report the results of extensive high-energy observations of the X-ray transient and black hole candidate XTE J1720-318 performed with INTEGRAL, XMM-Newton and RXTE. The source, which underwent an...
Bel, Marion Cadolle, Goldwurm, Andrea, Rodriguez, Jerome, Goldoni, Paolo, Corbel, Stephane, Sizun, Patrick, ...
We report the results of extensive high-energy observations of the X-ray transient and black hole candidate XTE J1720-318 performed with INTEGRAL, XMM-Newton and RXTE. The source, which underwent an...
Cadolle Bel, Marion, Goldwurm, Andrea, Rodriguez, Jerome, Goldoni, Paolo, Corbel, Stephane, Sizun, Patrick, ...
We report the results of extensive high-energy observations of the X-ray transient and black hole candidate XTE J1720-318 performed with INTEGRAL, XMM-Newton and RXTE. The source, which underwent an...
Cadolle Bel, Marion, Goldwurm, Andrea, Rodriguez, Jerome, Goldoni, Paolo, Corbel, Stephane, Sizun, Patrick, ...
We report the results of extensive high-energy observations of the X-ray transient and black hole candidate XTE J1720-318 performed with INTEGRAL, XMM-Newton and RXTE. The source, which underwent an...
Cadolle Bel, Marion, Goldwurm, Andrea, Rodriguez, Jerome, Goldoni, Paolo, Corbel, Stephane, Sizun, Patrick, ...
We report the results of extensive high-energy observations of the X-ray transient and black hole candidate XTE J1720-318 performed with INTEGRAL, XMM-Newton and RXTE. The source, which underwent an...