We present preliminary results from a Chandra 30 ks observation of the atoll source 4U 1705-44. In particular we concentrate on the study of the iron K alpha line, using the HEG spectrometer. The iron K alpha line at ~ 6.6 keV is found to be intrinsically broad ( FWHM ~ 1.7 keV); its width can be explained by reflection from a cold accretion disk extending down to ~ 17 km from the neutron star center or by Compton broadening in the hotter ( ~ 3 - 4 keV) corona
The X-ray spectrum of NGC 7213 is known to present no evidence for Compton reflection, a unique resu...
We report a Chandra high-energy grating detection of a narrow, redshifted absorption line superimpos...
We report on the results from a large observational campaign on the bare Seyfert galaxy Ark 120, joi...
We present preliminary results from a Chandra 30 ks observation of the atoll source 4U 1705-44. In p...
We present the results of a Chandra 30 ks observation of the low-mass X-ray binary and atoll source ...
We present the results of a Chandra 30 ks observation of the low-mass X-ray binary and atoll source ...
We confirm the detection of the relativistically broadened iron K-alpha emission at 6.4~keV with sim...
We report the discovery of a strong iron K alpha line in the hard X-ray selected source CXOJ 123716....
Broad iron lines are expected, and observed, to be a widespread feature in bright AGN. Still unclear...
The X-ray spectrum of NGC 7213 is known to present no evidence for Compton reflection, a unique resu...
We report on a simultaneous Chandra and RossiXTE observation of the LMXB atoll bursting source 4U 17...
We report the results of a simultaneous Chandra and RossiXTE observation of the LMXB atoll bursting ...
We analysed the X-ray spectra of six observations, simultaneously taken with XMM-Newton and Rossi X-...
We report on the results of 18 observations of the core, or peak, of the Fe K emission line at $\sim...
International audienceWe report on the results from a large observational campaign on the bare Seyfe...
The X-ray spectrum of NGC 7213 is known to present no evidence for Compton reflection, a unique resu...
We report a Chandra high-energy grating detection of a narrow, redshifted absorption line superimpos...
We report on the results from a large observational campaign on the bare Seyfert galaxy Ark 120, joi...
We present preliminary results from a Chandra 30 ks observation of the atoll source 4U 1705-44. In p...
We present the results of a Chandra 30 ks observation of the low-mass X-ray binary and atoll source ...
We present the results of a Chandra 30 ks observation of the low-mass X-ray binary and atoll source ...
We confirm the detection of the relativistically broadened iron K-alpha emission at 6.4~keV with sim...
We report the discovery of a strong iron K alpha line in the hard X-ray selected source CXOJ 123716....
Broad iron lines are expected, and observed, to be a widespread feature in bright AGN. Still unclear...
The X-ray spectrum of NGC 7213 is known to present no evidence for Compton reflection, a unique resu...
We report on a simultaneous Chandra and RossiXTE observation of the LMXB atoll bursting source 4U 17...
We report the results of a simultaneous Chandra and RossiXTE observation of the LMXB atoll bursting ...
We analysed the X-ray spectra of six observations, simultaneously taken with XMM-Newton and Rossi X-...
We report on the results of 18 observations of the core, or peak, of the Fe K emission line at $\sim...
International audienceWe report on the results from a large observational campaign on the bare Seyfe...
The X-ray spectrum of NGC 7213 is known to present no evidence for Compton reflection, a unique resu...
We report a Chandra high-energy grating detection of a narrow, redshifted absorption line superimpos...
We report on the results from a large observational campaign on the bare Seyfert galaxy Ark 120, joi...