Neutron Star Mass-Radius Relation Determination from RXTE X-ray burst data

Details Neutron Star Mass-Radius Relation Determination from RXTE X-ray burst data Neutron Star Mass-Radius Relation Determination from RXTE X-ray burst data

Jul 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aipc..714..261s&link_type=abstract

X-RAY TIMING 2003: Rossie and Beyond. AIP Conference Proceedings, Volume 714, pp. 261-265 (2004).

Statistics

X-Ray Sources, X-Ray Bursts, Neutron Stars, X-Ray

Scientific paper

We present the results of analysis of dynamic X-ray burst spectra from a set of LMXBs sources observed with RXTE. The application of theory of spectral formation during decay stage of X-ray burst allows to determine the fundamental parameters of a bursting compact star. The method implies the fitting of bolometric flux - color temperature dependence of burst radiation with the theoretical model which includes neutron star (NS) mass, radius, atmospheric chemical composition and the source distance as parameters. So far the technique was applied to Cyg X-2, 4U 1728-34, 4U 1820-30. Our results generally support that burst atmosphere is usually helium-dominated and neutron stars are more compact than standard NS. Superior statistics of the data for 4U 1728-34 also allowed to detect the effect of a geometry evolution during X-ray burst with radial expansion which is due to strong interaction of a burst with accretion disk. The effect is even more apparent for strange radial expansion burst from 4U 1820-30. The application of new results for the nuclear matter equation of state to the compactness of a star in 4U 1728-34 indicate that core of the star may contain quark condensate.

Affiliated with

Also associated with

No associations

Rating

Neutron Star Mass-Radius Relation Determination from RXTE X-ray burst data 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 Neutron Star Mass-Radius Relation Determination from RXTE X-ray burst data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Neutron Star Mass-Radius Relation Determination from RXTE X-ray burst data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1075292