Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004rmxac..20..218d&link_type=abstract
Compact Binaries in the Galaxy and Beyond, Proceedings of the conference held 17-22 November, 2003 in La Paz, Baja California Su
Astronomy and Astrophysics
Astronomy
Accretion, Accretion Disks, Stars: Individual: 4U 1705-44, Stars: Neutron, X-Rays: Stars, X-Rays: Binaries, X-Rays: General
Scientific paper
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 α line, using the HEG spectrometer. The iron K α 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.
Burderi Luciano
di Salvo Tiziana
Iaria Rosario
Méndez Mariano
Robba Natale Renato
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