Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005a%26a...437l..51a&link_type=abstract
Astronomy and Astrophysics, Volume 437, Issue 3, July III 2005, pp.L51-L54
Astronomy and Astrophysics
Astrophysics
22
Stars: Chemically Peculiar, Stars: Early-Type, Subdwarfs, Stars: Individual: Ls Iv-14.°116, Stars: Oscillations
Scientific paper
Helium-rich subdwarf B (He-sdB) stars form a very small inhomogeneous group of subluminous stars showing varying degrees of helium enrichment. They have been found in the field of our galaxy as well as in globular clusters. Here we report the first discovery of pulsation in a He-sdB star - LS IV-14°116. Two pulsation periods can be clearly identified (1950 and 2900 s) and are more likely to be due to high-order non-radial g-mode oscillations than to radial or non-radial p-modes.
Ahmad Ayesha
Jeffery Simon C.
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