Absolute timing of the Crab pulsar with the INTEGRAL/SPI telescope (2009)
Molkov, S., Jourdain, E., Roques, J. P.
We have investigated the pulse shape evolution of the Crab pulsar emission in the hard X-ray domain of the electromagnetic spectrum. In particular, we have studied the alignment of the Crab pulsar...
The High Energy Emission of the Crab Nebula from 20 keV to 6 MeV with INTEGRAL (2009)
The SPI spectrometer aboard the INTEGRAL mission observes regularly the Crab Nebula since 2003. We report on observations distributed over 5.5 years and investigate the variability of the intensity...
Unveiling the high energy tail of 1E 1740.7-2942 with INTEGRAL (2008)
Bouchet, L., Del Santo, M., Jourdain, E., Roques, J. P., Bazzano, A., De Cesare, G., ...
The microquasar 1E 1740.7-2942 is observed with Integral since Spring 2003. Here, we report on the source high energy behaviour by using the first three years of data collected with SPI and IBIS...
INTEGRAL Cross-calibration Status: Crab observations between 3 keV and 1 MeV (2008)
Jourdain, E., Gotz, D., Westergaard, N. J., Natalucci, L., Roques, J. P.
We present results of Crab observations by the INTEGRAL instruments. A simultaneous fit allows us to demonstrate that INTEGRAL provides reliable spectra over its wide energy range.
5 years of survey on the Crab Nebula with SPI/INTEGRAL (2008)
We present observations of the Crab Nebula above 20 keV by the SPI/INTEGRAL telescope during more than 5 years of operations. Our study demonstrates the stability of the instrument with time and...
Spectral variability of GX 339-4 in a hard-to-soft state transition (2008)
Del Santo, M., Malzac, J., Jourdain, E., Belloni, T., Ubertini, P.
We report on INTEGRAL observations of the bright black-hole transient GX 339-4 performed during the period August-September 2004. Our data cover three different spectral states, namely...
L. Bassani, G. Malaguti, E. Jourdain, J. P. Roques, W. N. Johnson
We report the first soft gamma-ray observation by the OSSE experiment onboard the CGRO of the optically selected Seyfert II galaxy, NGC 4507. The source was observed on two separate weeks in 1993 and...
Bouchet, L., Jourdain, E., Roques, J. P., Strong, A., Diehl, R., Lebrun, F., ...
We have processed the data accumulated with INTEGRAL SPI during 4 years (~ 51 Ms) to study the Galactic ``diffuse'' emission morphology in the 20 keV to 8 MeV energy range. To achieve this objective,...
Bouchet, L., Jourdain, E., Strong, A., Diehl, R., Lebrun, F., ...
Accepted for publication in the Astrophysical Journal (2007)
Osse Observations, W. N. Johnson, C. D. Dermer, R. L. Kinzer, J. D. Kurfess, M. S. Strickman, ...
We report results of multiple observations of the quasar 3C 273 with the Oriented Scintillation Spectrometer Experiment (OSSE) instrument on the Compton Gamma Ray Observatory. These observations span...
Bimodal spectral variability of Cygnus X-1 in an intermediate state (2007)
Malzac, J., Petrucci, P.O., Jourdain, E., Cadolle Bel, M., Sizun, P., Pooley, G., ...
We report the results of an observation of Cygnus X-1 with INTEGRAL, that we combine with simultaneous radio observations with the Ryle telescope. Both spectral and variability properties of the...
Bimodal spectral variability of Cygnus X-1 in an intermediate state (2007)
Malzac, J., Petrucci, P.O., Jourdain, E., Cadolle Bel, M., Sizun, P., Pooley, G., ...
We report the results of an observation of Cygnus X-1 with INTEGRAL, that we combine with simultaneous radio observations with the Ryle telescope. Both spectral and variability properties of the...
Bimodal spectral variability of Cygnus X-1 in an intermediate state (2007)
Malzac, J., Petrucci, P.O., Jourdain, E., Cadolle Bel, M., Sizun, P., Pooley, G., ...
We report the results of an observation of Cygnus X-1 with INTEGRAL, that we combine with simultaneous radio observations with the Ryle telescope. Both spectral and variability properties of the...
Churazov, E., Sunyaev, R., Revnivtsev, M., Sazonov, S., Molkov, S., Grebenev, S., ...
We study the spectrum of the cosmic X-ray background (CXB) in energy range $\sim$5-100 keV. Early in 2006 the INTEGRAL observatory performed a series of four 30ksec observations with the Earth disk...
Churazov, E., Sunyaev, R., Revnivtsev, M., Sazonov, S., Molkov, S., Grebenev, S., ...
We study the spectrum of the cosmic X-ray background (CXB) in energy range $\sim$5-100 keV. Early in 2006 the INTEGRAL observatory performed a series of four 30ksec observations with the Earth disk...
Churazov, E., Sunyaev, R., Revnivtsev, M., Sazonov, S., Molkov, S., Grebenev, S., ...
We study the spectrum of the cosmic X-ray background (CXB) in energy range $\sim$5-100 keV. Early in 2006 the INTEGRAL observatory performed a series of four 30ksec observations with the Earth disk...
Churazov, E., Sunyaev, R., Revnivtsev, M., Sazonov, S., Molkov, S., Grebenev, S., ...
12 pages, 12 figures.-- arXiv:0608250 astro-ph pre-print supplied.-- Final full-text version of the paper available at: http://dx.doi.org/10.1051/0004-6361:20066230.
Hard X-ray emission of the microquasar GX 339-4 in the low/hard state (2006)
Joinet, A., Jourdain, E., Malzac, J., Roques, J. P., Corbel, S., Rodriguez, J., ...
We present the analysis of the high energy emission of the Galactic black hole binary GX 339-4 in a low/hard state at the beginning of its 2004 outburst. The data from 273 ks of INTEGRAL...
Churazov, E., Sunyaev, R., Revnivtsev, M., Sazonov, S., Molkov, S., Grebenev, S., ...
We study the spectrum of the cosmic X-ray background (CXB) in energy range $\sim$5-100 keV. Early in 2006 the INTEGRAL observatory performed a series of four 30ksec observations with the Earth disk...
Gravitational effects on the high energy emission of accreting black holes (2006)
Suebsuwong, T., Malzac, J., Jourdain, E., Marcowith, A.
We extend the investigation of general relativistic effects on the observed X-ray continuum of Kerr black holes in the context of the light bending model (Miniutti & Fabian, 2004). Assuming a...
The broad-band spectrum of Cygnus X-1 measured by INTEGRAL (2006)
Cadolle Bel, M., Sizun, P., Goldwurm, A., Rodriguez, J., Laurent, P., Zdziarski, A.A., ...
The INTEGRAL satellite extensively observed the black hole binary Cygnus X-1 from 2002 November to 2004 November during calibration, open time and core program (Galactic Plane Scan) observations....
The broad-band spectrum of Cygnus X-1 measured by INTEGRAL (2006)
Cadolle Bel, M., Sizun, P., Goldwurm, A., Rodriguez, J., Laurent, P., Zdziarski, A.A., ...
The INTEGRAL satellite extensively observed the black hole binary Cygnus X-1 from 2002 November to 2004 November during calibration, open time and core program (Galactic Plane Scan) observations....
The broad-band spectrum of Cygnus X-1 measured by INTEGRAL (2006)
Cadolle Bel, M., Sizun, P., Goldwurm, A., Rodriguez, J., Laurent, P., Zdziarski, A.A., ...
The INTEGRAL satellite extensively observed the black hole binary Cygnus X-1 from 2002 November to 2004 November during calibration, open time and core program (Galactic Plane Scan) observations....
High efficiency XUV Overview Spectrometer HEXOS: Construction and laboratory testing (2006)
Biel, W., Greiche, A., Burhenn, R., Jourdain, E., Lepere, D.
The definitive version is available at http://rsi.aip.org .
HEXOS: neue VUV-Spektrometer für die Fusionsforschung (2006)
Biel, W., Burhenn, R., Jourdain, E., Lepere, D., Schäfer, F-J.
Bimodal spectral variability of Cygnus X-1 in an intermediate state (2005)
Malzac, J., Petrucci, P. O., Jourdain, E., Cadolle, M., Sizun, P., Pooley, G., ...
We report the results of an observation of Cygnus X-1 with INTEGRAL, that we combine with simultaneous radio observations with the Ryle telescope. Both spectral and variability properties of the...
SPI/INTEGRAL observation of the Cygnus region (2005)
Bouchet, L., Jourdain, E., Mandrou, P., Von Ballmoos, P., Boggs, S., ...
We present the analysis of the first observations of the Cygnus region by the SPI spectrometer onboard the Integral Gamma Ray Observatory, encompassing ${\\sim}$ 600 ks of data. Three sources namely...
The broad-band spectrum of Cygnus X-1 measured by INTEGRAL (2005)
Bel, M. Cadolle, Sizun, P., Goldwurm, A., Rodriguez, J., Laurent, P., Zdziarski, A. A., ...
The INTEGRAL satellite extensively observed the black hole binary Cygnus X-1 from 2002 November to 2004 November during calibration, open time and core program (Galactic Plane Scan) observations....
Joinet, A., Jourdain, E., Malzac, J., Roques, J. P., Schoenfelder, V., Ubertini, P., ...
IGR J17464-3213, already known as the HEAO-1 transient source H1743-322, has been detected during a state transition by the SPI/INTEGRAL telescope. We describe the spectral evolution and flaring...
Bimodal spectral variability of Cygnus X-1 in an intermediate state (2005)
Malzac, J., Petrucci, P.O., Jourdain, E., Cadolle Bel, M., Sizun, P., Pooley, G., ...
We report the results of an observation of Cygnus X-1 with INTEGRAL, that we combine with simultaneous radio observations with the Ryle telescope. Both spectral and variability properties of the...
Bimodal spectral variability of Cygnus X-1 in an intermediate state (2005)
Malzac, J., Petrucci, P.O., Jourdain, E., Cadolle Bel, M., Sizun, P., Pooley, G., ...
We report the results of an observation of Cygnus X-1 with INTEGRAL, that we combine with simultaneous radio observations with the Ryle telescope. Both spectral and variability properties of the...
3-200 keV spectral states and variability of the INTEGRAL black hole binary IGR J17464-3213 (2005)
Capitanio, F., Ubertini, P., Bazzano, A., Kretschmar, P., Zdziarski, A. A., Joinet, A., ...
State transition and flaring activity of IGR J17464-3213/H1743-322 with INTEGRAL SPI (2005)
Joinet, A., Jourdain, E., Malzac, J., Roques, J. P., Schönfelder, V., Ubertini, P., ...
3-200 keV spectral states and variability of the INTEGRAL Black Hole binary IGR J17464-3213 (2004)
Capitanio, F., Ubertini, P., Bazzano, A., Kretschmar, P., Zdziarski, A. A., Joinet, A., ...
On March 2003, IBIS, the gamma-ray imager on board the INTEGRAL satellite, detected an outburst from a new source, IGR J17464-3213, that turned out to be a HEAO-1 transient, H1743-322. In this paper...
Integral observation of Cyg X-1 in an intermediate state (2004)
Malzac, J., Petrucci, P. O., Jourdain, E., Sizun, P., Cadolle, M., Pooley, G., ...
We present preliminary results of an observation of Cygnus X-1 with INTEGRAL performed on June 7-11 2003. Both spectral and variability properties of the source indicate that Cygnus X-1 was in an...
The SPI/INTEGRAL survey of the Galactic Plane after one year (2004)
Bouchet, L., Jourdain, E., Roques, J. P., Mandrou, P., Jean, P., Skinner, G., ...
SPI/INTEGRAL observation of the Cygnus region (2003)
Bouchet, L., Jourdain, E., Mandrou, P., Von Ballmoos, P., Boggs, S., ...
We present the analysis of the first observations of the Cygnus region by the SPI spectrometer onboard the Integral Gamma Ray Observatory, encompassing ${\sim}$ 600 ks of data. Three sources namely...
SPI/INTEGRAL observation of the Cygnus region (2003)
Bouchet, L., Jourdain, E., Mandrou, P., Von Ballmoos, P., Boggs, S., ...
We present the analysis of the first observations of the Cygnus region by the SPI spectrometer onboard the Integral Gamma Ray Observatory, encompassing ${\\sim}$ 600 ks of data. Three sources namely...
SPI/INTEGRAL observation of the Cygnus region (2003)
Bouchet, L., Jourdain, E., Mandrou, P., Von Ballmoos, P., Boggs, S., ...
We present the analysis of the first observations of the Cygnus region by the SPI spectrometer onboard the Integral Gamma Ray Observatory, encompassing ${\\sim}$ 600 ks of data. Three sources namely...
SPI/INTEGRAL observation of the Cygnus region (2003)
Bouchet, L., Jourdain, E., Roques, J. P., Mandrou, P., Ballmoos, P. Von, Boggs, S., ...
SIGMA Observations of the Bursting Pulsar GRO J1744-28 (2001)
Mejia, J., Villela, T., Goldoni, P., Lebrun, F., Bouchet, L., Jourdain, E., ...
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. 2 by CGRO/BATSE....
The European Photon Imaging Camera on XMM-Newton: the MOS cameras (2001)
Turner, Martin J.L., Abbey, A.F., Arnaud, M., Balasini, M., Barbera, M., Belsole, E., ...
The definitive version of this paper is available from www.aanda.org.
Astronomy Astrophysics The European Photon Imaging Camera on XMM-Newton: The MOS cameras (2000)
A. Abbey, M. Arnaud, M. Balasini, M. Barbera, E. Belsole, ...
Abstract. The EPIC focal plane imaging spectrometers on XMM-Newton use CCDs to record the images and spectra of celestial X-ray sources focused by the three X-ray mirrors. There is one camera at the...
Long-Term Variability of the Hard X-ray Source GRS 1758-258: GRANAT/SIGMA Observations (1999)
Kuznetsov, S. I., Gilfanov, M. R., Churazov, E. M., Sunyaev, R. A., Dyachkov, A. V., Khavenson, N. G., ...
The results of GRANAT/SIGMA hard X-ray observations of GRS 1758-258 in 1990-1998 are presented. The source lies at ~5\arcdeg from the Galactic Center and was within the SIGMA field of view during the...
GRANAT/SIGMA Observation of the Early Afterglow from GRB 920723 in Soft Gamma-Rays (1999)
Burenin, R. A., Vikhlinin, A. A., Gilfanov, M. R., Terekhov, O. V., Tkachenko, A. Yu., Sazonov, S. Yu., ...
We present a GRANAT/SIGMA observation of the soft gamma-ray afterglow immediately after GRB 920723. The main burst is very bright. After ~6 s, the burst light curve makes a smooth transition into an...
Deep SIGMA observations of the central square degree of the Galaxy (1999)
Goldoni, P., Goldwurm, A., Lebrun, F., Paul, J., Jourdain, E., ...
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 unsolved in the...
The quantum efficiency of the XMM pn-CCD camera (1999)
Hartmann, R., Hartner, G., Briel, U. G., Dennerl, K., Haberl, F., Strüder, L., ...
SIGMA and XTE observations of the soft X-ray transient XTEJ1755-324 (1998)
Goldoni, P., Vargas, M., Goldwurm, A., Paul, J., Borrel, V., Jourdain, E., ...
We present observations of the X-ray transient XTEJ1755-324 performed during summer 1997 with the XTE satellite and with the SIGMA hard X-ray telescope onboard the GRANAT observatory. The source was...
Malzac, J., Jourdain, E., Petrucci, P. O., Henri, G.
We calculate the reflection component predicted by the anisotropic illumination model of Henri & Petrucci 1997. This component appears to be more important than for isotropic models. The overall...
SIGMA observations of X-ray Nova Velorum 1993 (GRS 1009-45) (1997)
Goldoni, P., Vargas, M., Goldwurm, A., Laurent, P., Jourdain, E., ...
We report on hard X-ray observations of X-ray Nova Velorum 1993 (GRS 1009-45) performed with the SIGMA coded mask X-ray telescope in January 1994. The source was clearly detected with a flux of about...
Kuznetsov, S., Gilfanov, M., Churazov, E., Sunyaev, R., Korel, I., Khavenson, N., ...
The entire dataset of the GRANAT/SIGMA observations of Cyg X-1 and 1E1740.7-2942 in 1990-1994 was analyzed in order to search for correlations between primary observational characteristics of the...
An Anisotropic Illumination Model of Seyfert I Galaxies (1997)
Petrucci, P. O., Henri, G., Malzac, J., Jourdain, E.
We develop a self-consistent model of Seyfert galaxies continuum emission. High energy emission is produced by Inverse Compton process on soft photons emitted as thermal radiation by the accretion...
Observational constraints on annihilation sites in 1E 1740.7-2942 and Nova Muscae (1997)
Moskalenko, I. V., Jourdain, E.
The region of the Galactic center contains several sources which demonstrate their activity at various wavelengths and particularly above several hundred keV. Escape of positrons from such a source...
Kuznetsov, S., Gilfanov, M., Churazov, E., Sunyaev, R., Korel, I., Khavenson, N., ...
The entire dataset of the GRANAT/SIGMA observations of Cyg X-1 and 1E1740.7-2942 in 1990-1994 was analyzed in order to search for correlations between primary observational characteristics of the...
Moskalenko, I. V., Jourdain, E.
By solving the Fokker-Planck equation directly we examine effects of annihilation, particle escape and injection on the form of a steady-state positron distribution in thermal hydrogen plasmas with...
Two Distinct Modes In The Low (Hard) State Of Cyg X-1 And 1E1740-294 (1996)
Kuznetsov, S., Gilfanov, M., Churazov, E., Sunyaev, R., Vikhlinin, A., Khavenson, N., ...
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 characteristics of the hard...
First observations of Cygnus X-1 with SPI/INTEGRAL
Jourdain, E., Roques, J. P., Bouchet, L., Mandrou, P., Vedrenne, G., Schönfelder, V., ...