DDO spectroscopic survey of MOST variable stars
- Author(s)
- Theodor Pribulla, Slavek M. Rucinski, Rainer Kuschnig
- Abstract
A spectroscopic support survey of 103 objects observed by the Microvariability and Oscillations of STars (MOST) satellite is presented; 96 are variable stars with 83 of them being new MOST variable-star detections or stars with variability types verified and/or modified on the basis of the MOST data. The analysis of 241 medium-resolution spectra using the broadening-function formalism yielded radial velocities, projected rotational velocities (for 31 targets for which it was possible) and spectral-type estimates. Seven new spectroscopic binaries were discovered; orbital solutions are given for two of them (HD 73709 and GSC 0814-0323). The visual binary HD 46180 was found to be composed of two close binary stars (eclipsing and non-eclipsing one), very probably forming a physical quadruple system.
- Organisation(s)
- Department of Astrophysics
- External organisation(s)
- University of Toronto
- Journal
- Monthly Notices of the Royal Astronomical Society
- Volume
- 392
- Pages
- 847-854
- No. of pages
- 8
- ISSN
- 0035-8711
- Publication date
- 2009
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103003 Astronomy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/9e21bce8-8f0e-432a-8bc1-8d1764341cf8