Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006pasj...58..587a&link_type=abstract
Publications of the Astronomical Society of Japan, Vol.58, No.3, pp.587-594
Astronomy and Astrophysics
Astronomy
5
Stars: Neutron, X-Rays: Individual (Exo 0748-676), X-Rays: Stars
Scientific paper
We analyzed an effect of the photo-ionization on the continuum spectra using the XMM-Newton archive data of the low-mass X-ray binary EXO 0748-676. We found that the ionization degree of the circumstellar plasma, which modifies the soft X-ray spectrum through absorption, changes largely in association with the X-ray bursts and the dips. The burst light curve below ˜1keV is found to have a major contribution from the persistent emission, which temporary increased during the burst due to a reduction of the opacity of the absorber. We utilized a correlation diagram of the count rates (0.5-1.0keV vs. 2.0-4.0keV) to study the effect of photo-ionization during the dips. We found that the correlation can be much better reproduced if we take into account the photo-ionization of the absorber. No partial covering absorption was required, except for the residual flux in the deepest dips.
Asai Kazumi
Dotani Tadayasu
No associations
LandOfFree
Soft X-Ray Absorption Due to the Photo-Ionized Plasma in the Low-Mass X-Ray Binary EXO 0748-676 Observed with XMM-Newton Observatory does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Soft X-Ray Absorption Due to the Photo-Ionized Plasma in the Low-Mass X-Ray Binary EXO 0748-676 Observed with XMM-Newton Observatory, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Soft X-Ray Absorption Due to the Photo-Ionized Plasma in the Low-Mass X-Ray Binary EXO 0748-676 Observed with XMM-Newton Observatory will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1475907