Two new variable sdB stars, HE 0218−3437 and LB 1516

Simple item page
dc.contributor.authorKoen, Chris
dc.contributor.authorKilkenny, David
dc.contributor.authorPretorius, M.L.
dc.contributor.authorFrew, D.J.
dc.date.accessioned2013-11-13T08:26:03Z
dc.date.available2013-11-13T08:26:03Z
dc.date.issued2010
dc.description.abstractWe present photometry which shows that two known hot subdwarf stars, HE 0218−3437 and LB 1516, are variable. LB 1516 exhibits several frequencies in the range 12–25 cycles d−1 (periods of about 1–2 h) with amplitudes less than about 0.003 mag and appears to be a typical slowly pulsating sdB star. Results from a multisite campaign on HE 0218−3437 show the presence of two frequencies only, the lower amplitude variation an apparent subharmonic of the higher amplitude periodicity. It is likely that the star is in a binary system, and that the variability is due to ellipsoidal deformation of the primary star.en_US
dc.description.accreditationWeb of Scienceen_US
dc.identifier.citationKoen, C. et al. (2010). Two new variable sdB stars, HE 0218−3437 and LB 1516. 401: 1850–1856. Monthly Notices of the Royal Astronomical Society, 401(3): 1850-1856en_US
dc.identifier.issn0035-8711
dc.identifier.urihttp://hdl.handle.net/10566/803
dc.language.isoenen_US
dc.privacy.showsubmitterfalse
dc.publisherOxford University Pressen_US
dc.rights© 2010 Copyright Oxford University Press. This file may be freely used for educational purposes, as long as it is not altered in any way. Acknowledgement of the authors and the source is required.
dc.source.urihttp://dx.doi.org/10.1111/j.1365-2966.2009.15761.x
dc.status.ispeerreviewedTrue
dc.subjectStars: individual: HE 0218−3437en_US
dc.subjectStars: oscillationsen_US
dc.subjectStars: variables: otheren_US
dc.subjectStars: individual: LB 1516
dc.titleTwo new variable sdB stars, HE 0218−3437 and LB 1516en_US
dc.typeArticleen_US

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
KoenSubdwarfStars2010.pdf
Size:
902.67 KB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.55 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Research Articles (Statistics & Population Studies)
Prof. Chris Koen