dc.contributor.author |
Vaidya, Kaushar |
|
dc.date.accessioned |
2024-02-12T07:08:27Z |
|
dc.date.available |
2024-02-12T07:08:27Z |
|
dc.date.issued |
2005-04 |
|
dc.identifier.uri |
https://www.aanda.org/articles/aa/abs/2005/29/aahc011/aahc011.html |
|
dc.identifier.uri |
http://dspace.bits-pilani.ac.in:8080/jspui/xmlui/handle/123456789/14217 |
|
dc.description.abstract |
Results of first CCD photometry during the recent deep light decline, and high-resolution spectroscopy, are presented for DY Persei. The spectra show variable blueshifted features in the sodium D lines. The C i lines are strong whereas neutron-capture elements are not enhanced. The isotopic 13CN(2, 0) lines relative to 12CN are of similar strength with those for the carbon star U Hya. All these confirm the RCB nature of DY Per and the existence of ejected clouds. At least two clouds are revealed at -197.3 and -143.0 km s-1. A star was detected about 04 to the west and 25 to the north from DY Per. This anonymous companion, with observed colour indices and , may be a foreground star.
|
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
EDP Sciences |
en_US |
dc.subject |
Physics |
en_US |
dc.subject |
Stars: carbon / stars: winds |
en_US |
dc.subject |
Outflows / stars |
en_US |
dc.subject |
Stars: circumstellar matter |
en_US |
dc.subject |
CCD photometry |
en_US |
dc.title |
The cool Galactic R Coronae Borealis variable DY Persei |
en_US |
dc.type |
Article |
en_US |