Sign on

SAO/NASA ADS Astronomy Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· Full Refereed Journal Article (PDF/Postscript)
· arXiv e-print (arXiv:0812.1034)
· References in the article
· Citations to the Article (4) (Citation History)
· Refereed Citations to the Article
· SIMBAD Objects (8)
· Also-Read Articles (Reads History)
·
· Translate This Page
Title:
Eclipse Timings of the Transient Low-Mass X-ray Binary EXO 0748-676. IV. The Rossi X-ray Timing Explorer Eclipses
Authors:
Wolff, Michael T.; Ray, Paul S.; Wood, Kent S.; Hertz, Paul L.
Affiliation:
AA(Space Science Division, Naval Research Laboratory, Washington, DC 20375-5352, USA ), AB(Space Science Division, Naval Research Laboratory, Washington, DC 20375-5352, USA ), AC(Space Science Division, Naval Research Laboratory, Washington, DC 20375-5352, USA ), AD(Science Mission Directorate, NASA Headquarters, Washington, DC 20546-0001, USA )
Publication:
The Astrophysical Journal Supplement, Volume 183, Issue 1, pp. 156-170 (2009). (ApJS Homepage)
Publication Date:
07/2009
Origin:
IOP
ApJ Keywords:
binaries: eclipsing, stars: individual: EXO 0748–676, X-rays: binaries
DOI:
10.1088/0067-0049/183/1/156
Bibliographic Code:
2009ApJS..183..156W

Abstract

We report our complete database of X-ray eclipse timings of the low-mass X-ray binary EXO 0748-676 observed by the Rossi X-Ray Timing Explorer (RXTE) satellite. As of this writing we have accumulated 443 full X-ray eclipses, 392 of which have been observed with the Proportional Counter Array on RXTE. These include both observations where an eclipse was specifically targeted and those eclipses found in the RXTE data archive. Eclipse cycle count has been maintained since the discovery of the EXO 0748-676 system in 1985 February. We describe our observing and analysis techniques for each eclipse and describe improvements we have made since the last compilation by Wolff et al. The principal result of this paper is the database containing the timing results from a seven-parameter fit to the X-ray light curve for each observed eclipse along with the associated errors in the fitted parameters. Based on the standard O - C analysis, EXO 0748-676 has undergone four distinct orbital period epochs since its discovery. In addition, EXO 0748-676 shows small-scale events in the O - C curve that are likely due to short-lived changes in the secondary star.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)
   

Find Similar Abstracts:

Use: Authors
Title
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
Physics
arXiv e-prints