| dc.contributor.author | Edelmann, H. | |
| dc.contributor.author | Heber, U. | |
| dc.contributor.author | Napiwotzki, R. | |
| dc.date.accessioned | 2008-01-27T15:30:30Z | |
| dc.date.available | 2008-01-27T15:30:30Z | |
| dc.date.issued | 2001 | |
| dc.identifier.citation | Edelmann , H , Heber , U & Napiwotzki , R 2001 , Spectral Monitoring of HS 0209+0832 a DAB White Dwarf in the DB Gap . in In: Procs of the 12th European Workshop on White Dwarf Stars, ASP Conference Proceedings 226 . Astronomical Society of the Pacific , pp. 143-6 . | |
| dc.identifier.isbn | 1-58381-058-7 | |
| dc.identifier.other | dspace: 2299/1424 | |
| dc.identifier.uri | http://hdl.handle.net/2299/1424 | |
| dc.description | Original paper can be found at: http://www.astrosociety.org/pubs/cs/222-252.html--Copyright Astronomical Society of the Pacific | |
| dc.description.abstract | We report results of a spectral monitoring campagne of the DAB white dwarf HS 0209+0832, for which helium line profile variations were reported earlier (Heber et al. 1997). This finding is confirmed by our discovery of a second epoch (October 1997) of unusually low helium line strength and of their subsequent recovery. The observed changes in line strength correspond to a variation of the (average) helium abundance by a factor of 2. | en |
| dc.format.extent | 287239 | |
| dc.language.iso | eng | |
| dc.publisher | Astronomical Society of the Pacific | |
| dc.relation.ispartof | In: Procs of the 12th European Workshop on White Dwarf Stars, ASP Conference Proceedings 226 | |
| dc.title | Spectral Monitoring of HS 0209+0832 a DAB White Dwarf in the DB Gap | en |
| dc.contributor.institution | School of Physics, Astronomy and Mathematics | |
| dc.contributor.institution | School of Physics, Engineering & Computer Science | |
| dc.contributor.institution | Department of Physics, Astronomy and Mathematics | |
| dc.contributor.institution | Centre for Astrophysics Research (CAR) | |
| rioxxterms.type | Other | |
| herts.preservation.rarelyaccessed | true | |
