Volume 398, Number 1, January IV 2003
|Page(s)||283 - 285|
|Section||Stellar structure and evolution|
|Published online||14 January 2003|
PG 1613+426: A new sdB pulsator*
INAF - Osservatorio Astrofisico di Catania, Città Universitaria, 95123 Catania, Italy
2 Dipartimento di Fisica e Astronomia dell'Università, Sezione Astrofisica, Città Universitaria, 95123 Catania, Italy
Corresponding author: A. Bonanno, firstname.lastname@example.org
Accepted: 12 November 2002
We report the detection of short period oscillations in the hot subdwarf B (sdB) star PG 1613+426 from time-series photometry carried out with the 91-cm Cassegrain telescope of the Catania Astrophysical Observatory. This star, which is brighter than the average of the presently known sdB pulsators, with mag, has and , its position is near the hot end of the sdB instability strip, and it is a pulsator with a well observed peak in the power spectrum at . This star seems to be well suited for high precision measurements, which could detect a possible multi-mode pulsation behaviour.
Key words: stars: subdwarfs / stars: oscillations / stars: individual: PG 1613+426
© ESO, 2003
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.