Publication
Title
Detectability of micro-variables in the ASAS database : the Scorpius-Centaurus Complex
Author
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 For some stars comments on yet unpublished high-resolution spectra are included.
Language
English
Source (journal)
The journal of astronomical data [CD-ROM]. - Brussel = Bruxelles : University of Brussels, 1995
Publication
Brussel = Bruxelles : University of Brussels : 2014
ISSN
1385-3945
Volume/pages
20:5(2014), p. 1-56
Full text (open access)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Record
Identification
Creation 13.01.2015
Last edited 05.02.2015
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