Constraints on the mass and radius of the accreting neutron star in the Rapid Burster

Details Constraints on the mass and radius of the accreting neutron star in the Rapid Burster Constraints on the mass and radius of the accreting neutron star in the Rapid Burster

2012-04-16

arxiv.org/abs/1204.3627v1

Astronomy and Astrophysics

Astrophysics

High Energy Astrophysical Phenomena

7 pages, 8 figures, Accepted for publication in The Astrophysical Journal

Scientific paper

The Rapid Burster (MXB 1730-335) is a unique object, showing both type I and type II X-ray bursts. A type I burst of the Rapid Burster was observed with Swift/XRT on 2009 March 5, showing photospheric radius expansion for the first time in this source. We report here on the mass and radius determination from this photospheric radius expansion burst using a Bayesian approach. After marginalization over the likely distance of the system (5.8-10 kpc) we obtain M=1.1+/-0.3 M_sun and R=9.6+/-1.5 km (1-sigma uncertainties) for the compact object, ruling out the stiffest equations of state for the neutron star. We study the sensitivity of the results to the distance, the color correction factor, and the hydrogen mass fraction in the envelope. We find that only the distance plays a crucial role.

Affiliated with

Also associated with

No associations

Rating

Constraints on the mass and radius of the accreting neutron star in the Rapid Burster 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 Constraints on the mass and radius of the accreting neutron star in the Rapid Burster, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constraints on the mass and radius of the accreting neutron star in the Rapid Burster will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-288262