Discovery of an Iron K Absorption Line in the Low-Mass X-Ray Binary GX 13+1

Details Discovery of an Iron K Absorption Line in the Low-Mass X-Ray Binary GX 13+1 Discovery of an Iron K Absorption Line in the Low-Mass X-Ray Binary GX 13+1

Aug 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001apj...556l..87u&link_type=abstract

The Astrophysical Journal, Volume 556, Issue 2, pp. L87-L90.

Astronomy and Astrophysics

Astronomy

32

Stars: Individual: Alphanumeric: Gx 13+1, X-Rays: Stars

Scientific paper

We report the discovery of an iron K absorption-line feature with ASCA in the spectra of the low-mass X-ray binary GX 13+1. The absorption line is detected at 7.0 keV with an equivalent width of 35+/-8 eV, which is attributed to resonant scattering of the Kα line from Fe XXVI ions in the line of sight whose column density is larger than ~1018 cm-2. The detection of such a spectral feature from a neutron star binary rules out the hypothesis that it is unique to the Galactic superluminal jet sources. From the similarity of the line parameters to those of the superluminal sources, we infer that we view the X-ray emission through a highly ionized plasma in outer parts of the accretion disk with a relatively high inclination angle. This picture is consistent with the universal presence of such plasmas in X-ray binaries accreting through disks.

Affiliated with

Also associated with

No associations

Rating

Discovery of an Iron K Absorption Line in the Low-Mass X-Ray Binary GX 13+1 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 Discovery of an Iron K Absorption Line in the Low-Mass X-Ray Binary GX 13+1, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Discovery of an Iron K Absorption Line in the Low-Mass X-Ray Binary GX 13+1 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-951791