Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aas...193.4307s&link_type=abstract
American Astronomical Society, 193rd AAS Meeting, #43.07; Bulletin of the American Astronomical Society, Vol. 30, p.1314
Astronomy and Astrophysics
Astronomy
Scientific paper
Despite being one of the seven brightest persistent X-ray sources in the Galactic bulge, little is definitively known about GX13+1. Although classified as an atoll source, GX13+1 shows many characteristics common to Z-sources (excursions in HID/CD, radio emission, a candidate orbital periodicity implying a giant donor star, etc). In addition, a candidate superorbital periodicity of 50 dy has been observed in RXTE ASM data. We have therefore undertaken extensive RXTE observations of this enigmatic source totalling 340 ksec, including a monitoring program between 1998 May-Oct, and an intensive observing block simultaneous with a week-long study of the IR counterpart at CTIO in 1998 June. Here we will present the first results of this investigation, to include: (a) a discussion of the secular changes seen in the color-color diagram of GX13+1 throughout the observing interval; (b) X-ray timing studies, from searches for kHz- and Hz-range QPO to possible orbital (hr-day) and superorbital (wk/mo) variability; (c) X-ray spectral studies; (d) a comparison of the X-ray and IR data.
Corbet Robin H. D.
Peele Andrew G.
Smale Alan P.
Wachter Stefanie
No associations
LandOfFree
Variability in the Bright Bulge Source GX13+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 Variability in the Bright Bulge Source GX13+1, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Variability in the Bright Bulge Source GX13+1 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-994355