Title: Photometry of balloon 090100001 with the Himalayan Chandra Telescope
Authors: Kasran, Ahmad ×
Jeffery, C. S
Aerts, Conny
Fontaine, G
Charpinet, S #
Issue Date: Jun-2007
Publisher: Indian inst astrophysics
Series Title: Bulletin of the astronomical society of india vol:35 issue:2 pages:67-75
Abstract: About one tenth of all hot subluminous B stars pulsate nonradially with periods of 80 - 600s; the oscillations are identified with pressure modes. At lower effective temperatures, another group pulsates non-radially with periods > 3000 s; these oscillations have been identified with gravity modes. If sufficient modes can be identified, such oscillations can provide information about the interior of a star. One pulsating sdB star - balloon 090100001 - lies at the boundary of the hot and cool groups, and shows both short and long-period oscillations. To study its interior structure in detail, we carried out a multi-site observing campaign in 2005 August in order to obtain a very precise light curve and hence to identify the modes of oscillation. This campaign involved four telescopes including the Himalayan Chandra Telescope (HCT), the William Herschel Telescope (in La Palma), the Canada France Hawaii Telescope and the Faulkes Telescope North (both in Hawaii). Here we report the HCT observations of balloon 090100001.
ISSN: 0304-9523
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Institute of Astronomy
× corresponding author
# (joint) last author

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