|
other query modes : |
Identifier query |
Coordinate query |
Criteria query |
Reference query |
Basic query |
Script submission |
TAP |
Output options |
Object types |
Help |
2010MNRAS.401.1850K - Mon. Not. R. Astron. Soc., 401, 1850-1856 (2010/January-3)
Two new variable sdB stars, HE 0218-3437 and LB 1516.
KOEN C., KILKENNY D., PRETORIUS M.L. and FREW D.J.
Abstract (from CDS):
We present photometry which shows that two known hot subdwarf stars, HE 0218-3437 and LB 1516, are variable. LB 1516 exhibits several frequencies in the range 12-25 cycles/d (periods of about 1-2 h) with amplitudes less than about 0.003 mag and appears to be a typical slowly pulsating sdB star.
Result. from a multisite campaign on HE 0218-3437 show the presence of two frequencies only, the lower amplitude variation an apparent subharmonic of the higher amplitude periodicity. It is likely that the star is in a binary system, and that the variability is due to ellipsoidal deformation of the primary star.
Result. from a multisite campaign on HE 0218-3437 show the presence of two frequencies only, the lower amplitude variation an apparent subharmonic of the higher amplitude periodicity. It is likely that the star is in a binary system, and that the variability is due to ellipsoidal deformation of the primary star.
Abstract Copyright: © 2009 The Authors. Journal compilation © 2009 RAS
Journal keyword(s): stars: individual (HE 0218-3437, LB 1516) - stars: oscillations - stars: variables: other
Simbad objects: 6
To bookmark this query, right click on this link: simbad:2010MNRAS.401.1850K and select 'bookmark this link' or equivalent in the popup menu