Other
Scientific paper
Apr 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006mnras.367.1603k&link_type=abstract
Monthly Notices of the Royal Astronomical Society, Volume 367, Issue 4, pp. 1603-1608.
Other
9
Stars: Individual: Ec 11583-2708, Stars: Individual: Ec 20338-1925, Stars: Individual: Ec 09582-1137, Stars: Oscillations, Stars: Variables: Other
Scientific paper
We report the discovery of very rapid pulsations in three sdB stars from the Edinburgh-Cape blue object survey. The short periods, small amplitudes and multi-periodicity clearly establish these stars as members of the EC 14026 class. EC 11583-2708 has pulsation periods near 149, 144 and 114 s, though evidence is presented that the 149-s period is resolved into two periods at 148.87 and 148.55 s by the full photoelectric data set. The amplitudes of the detected variations are in the range 0.002-0.006 mag. The light variation of EC 20338-1925 is dominated by a period near 147 s with a very large amplitude for a variable sdB star (0.025 mag), though four other frequencies are detected with periods near 168, 151, 141 and 135 s and amplitudes in the range 0.002-0.005 mag. The third star, EC 09582-1137, displays a light curve which is virtually a textbook example of frequency beating, being produced by two pulsations of almost equal amplitude (~0.008 mag) and periods near 136.0 and 151.2 s.
Hambly Nigel
Kilkenny Dave
Koen Chris
Lynas-Gray Anthony E.
MacGillivray Harvey
No associations
LandOfFree
Three new pulsating sdB stars from the Edinburgh-Cape survey 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 Three new pulsating sdB stars from the Edinburgh-Cape survey, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Three new pulsating sdB stars from the Edinburgh-Cape survey will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1502581