Optical Variability of X-Ray Bright Southern Symbiotic Stars

Details Optical Variability of X-Ray Bright Southern Symbiotic Stars Optical Variability of X-Ray Bright Southern Symbiotic Stars

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...20510706h&link_type=abstract

American Astronomical Society Meeting 205, #107.06; Bulletin of the American Astronomical Society, Vol. 36, p.1525

Other

1

Scientific paper

We performed weekly B- and V-band observations of four X-ray bright southern symbiotic binary stars -- CD-43 14304, Hen 3-1591, LMC S63, and SMC LN 358 -- using the 1.3-m telescope at Cerro Tololo Inter-American Observatory (CTIO). We began optical monitoring in August 2003 for two of the objects (LMC S63 and SMC LN 358) and in January 2004 for the other two objects (CD-43 14304 and Hen 3-1591). None of the four survey objects experienced a major outburst during the monitoring period. We did, however, detect small-amplitude ( 0.1 mag) optical variability on a time scale of tens of days, for the first time, in each of the four systems. Both the structure and amplitude of the variations are roughly the same in the B band and V band in all of the symbiotics in our sample except one (LMC S63), and is most consistent with the idea that the week-time-scale variability originates with the hot component (most likely an accreting white dwarf) rather than the red giant. We compare the variability properties of our small sample of X-ray-bright symbiotic stars to those of samples of both X-ray-bright and X-ray-dim symbiotic stars from the database of the American Association of Variable Star Observers (AAVSO).

Affiliated with

Also associated with

No associations

Rating

Optical Variability of X-Ray Bright Southern Symbiotic Stars 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 Optical Variability of X-Ray Bright Southern Symbiotic Stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical Variability of X-Ray Bright Southern Symbiotic Stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1642304