Title
Detectability of micro-variables in the ASAS database : the Scorpius-Centaurus Complex Detectability of micro-variables in the ASAS database : the Scorpius-Centaurus Complex
Author
Faculty/Department
Faculty of Sciences. Mathematics and Computer Science
Publication type
article
Publication
Brussel = Bruxelles : University of Brussels ,
Subject
Computer. Automation
Source (journal)
The journal of astronomical data [CD-ROM]. - Brussel = Bruxelles : University of Brussels, 1995
Volume/pages
20(2014) :5 , p. 1-56
ISSN
1385-3945
Carrier
E
Target language
English (eng)
Affiliation
University of Antwerp
Abstract
We present a star-by-star discussion of the light variability of stars belonging to the Sco-Cen Complex, as detected in the ASAS-V database by David et al. (2013). Most of the variables (30) are young stars with irregular and/or cyclic patterns of variability, almost all with spectral types that indicate that they did not yet reach the zero-age main-sequence. The ZAMS starts at A3, F2 and F4 for the Upper-Scorpius, the Upper Centaurus-Lupus and the Lower Centaurus-Crux subgroups, respectively. A minority of stars (7), mainly of spectral type B or late-A, show strictly (multi)-periodic variability induced by rigid rotation of a spotted magnetic star, by slight deformation of the stellar shape in a binary, or by pulsation of stars situated in the instability domain of either SPB, delta Sct or gamma Dor stars. For some stars comments on yet unpublished high-resolution spectra are included.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/496fcb/098a0416.pdf
Handle