Period derivative of the M15 X-ray Binary AC211/X2127+119

Details Period derivative of the M15 X-ray Binary AC211/X2127+119 Period derivative of the M15 X-ray Binary AC211/X2127+119

1998-08-28

arxiv.org/abs/astro-ph/9808323v1

Astronomy and Astrophysics

Astrophysics

11 pages, 3 figures, to be published in New Astronomy

Scientific paper

10.1016/S1384-1076(98)00026-8

We have combined Rossi X-ray Timing Explorer observations of X2127+119, the low-mass X-ray binary in the globular cluster M15, with archival X-ray lightcurves to study the stability of the 17.1 hr orbital period. We find that the data cannot be fit by the Ilovaisky (1993) ephemeris, and requires either a 7sigma change to the period or a period derivative Pdot/P~9x10e-7 per year. Given its remarkably low L_X/L_opt such a Pdot lends support to models that require super-Eddington mass transfer in a q~1 binary.

Affiliated with

Also associated with

No associations

Rating

Period derivative of the M15 X-ray Binary AC211/X2127+119 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 Period derivative of the M15 X-ray Binary AC211/X2127+119, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Period derivative of the M15 X-ray Binary AC211/X2127+119 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-348887