Astronomy and Astrophysics – Astrophysics
Scientific paper
2003-05-18
Phys.Rev.Lett. 91 (2003) 071103
Astronomy and Astrophysics
Astrophysics
5 pages, submitted to Phys. Rev. Lett
Scientific paper
10.1103/PhysRevLett.91.071103
Gravitationally redshifted absorption lines of Fe XXVI, Fe XXV, and O VIII were inferred recently in the X-ray spectrum of the bursting neutron star EXO 0748-676. We place an upper limit on the stellar magnetic field based on the iron lines. The oxygen absorption feature shows a multiple component profile that is consistent with Zeeman splitting in a magnetic field of ~(1-2)x10^9 gauss, and for which the corresponding Zeeman components of the iron lines are expected to be blended together. In other systems, a field strength >5x10^{10} gauss could induce a blueshift of the line centroids that would counteract gravitational redshift and complicate the derivation of constraints on the equation of state of the neutron star.
No associations
LandOfFree
Spectroscopic Constraints on the Surface Magnetic Field of the Accreting Neutron Star EXO 0748-676 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 Spectroscopic Constraints on the Surface Magnetic Field of the Accreting Neutron Star EXO 0748-676, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spectroscopic Constraints on the Surface Magnetic Field of the Accreting Neutron Star EXO 0748-676 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-604016