Other
Scientific paper
Aug 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007mnras.379.1123r&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 379, Issue 3, pp. 1123-1132.
Other
10
Stars: Oscillations, Stars: Variables: Other
Scientific paper
O-type hot subdwarf (sdO) stars are evolved objects linking the asymptotic giant branch and extended horizontal branch phases with the dying low-mass white dwarfs. However, their exact evolutionary state and inner structure has not yet been constrained. Our aim was to discover possible sdO pulsators, so that asteroseismologic techniques could be used to unveil their inner structure and evolutionary state. We performed fast CCD photometry in search of pulsators within a sample of 56 sdOs in the Northern and Southern hemispheres during the period 2003-2006. We obtained two very promising sdO pulsator candidates that remain to be confirmed due to the low amplitude of their oscillations.
Based on observations made with the Nordic Optical Telescope, operated on the island of La Palma jointly by Denmark, Finland, Iceland, Norway and Sweden, in the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofísica de Canarias. Also based on observations collected at the Centro Astronómico Hispano Alemán (CAHA) at Calar Alto, operated jointly by the Max-Planck-Institut für Astronomie and the Instituto de Astrofísica de Andalucía (CSIC). This paper also uses observations made at the South African Astronomical Observatory and the Spanish Observatorio de Sierra Nevada.
E-mail: cristina@iaa.es
Garrido Rafa
Rodríguez-López Cristina
Ulla Ana
No associations
LandOfFree
The first extensive search for sdO pulsators 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 The first extensive search for sdO pulsators, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The first extensive search for sdO pulsators will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1787398