Published April 3, 2001
| Published + Submitted
Journal Article
Open
CCD-based observations of PG 0856+121 and a theoretical analysis of its oscillation modes
Abstract
BVRI CCD-based and near-IR (J) imaging, together with unfiltered photometry of the hot subdwarf B star PG 0856+121, are reported. Two close, faint, red, point-like sources are resolved. They account for the previously reported IR excess observed in this hot subdwarf. In addition, the new unfiltered differential photometry of PG 0856+121 confirms its previously reported pulsational nature. A comparison with the oscillation modes of stellar models suggests the presence of g modes.
Additional Information
© 2001 ESO. Received: 5 July 2000. Accepted: 29 January 2001 The authors are grateful to V.J.S. Béjar for his assistance in obtaining the J images at the CST on November 25, 2000. Ana Ulla acknowledges support from the Spanish MEC DGESIC under contract PB97-1435-C02-02 and from the Spanish MCT DGI under contract AYA2000-1691. This research made use of the SIMBAD database, operated at CDS, Strasbourg, France and of the NASA Astrophysics Data System (ADS).Attached Files
Published - aa10085.pdf
Submitted - 0102142.pdf
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Additional details
- Eprint ID
- 85151
- Resolver ID
- CaltechAUTHORS:20180307-064844266
- PB97-1435-C02-02
- Departmento Governmental de Investigaciónes Cientificas y Técnológicas (DGICYT)
- AYA2000-1691
- Departmento Governmental de Investigaciónes Cientificas y Técnológicas (DGICYT)
- Created
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2018-03-07Created from EPrint's datestamp field
- Updated
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2021-11-15Created from EPrint's last_modified field