Affordable Access

MOST detects corotating bright spots on the mid-O-type giant ξ Persei

Authors
  • Tahina, Ramiaramanantsoa
  • Anthony F J, Moffat
  • André-Nicolas, Chené
  • Noel D, Richardson
  • Huib F, Henrichs
  • Sébastien, Desforges
  • Victoria, Antoci
  • Jason Rowe
  • Jaymie M, Matthews
  • Rainer, Kuschnig
  • Werner W, Weiss
  • Dimitar, Sasselov
  • Slavek M, Rucinski
  • David B, Guenther
Type
Published Article
Journal
Monthly Notices of the Royal Astronomical Society
Publisher
Oxford University Press
Publication Date
Jun 10, 2014
Volume
441
Issue
1
Pages
910–917
Source
SETI Institute
License
Unknown

Abstract

We have used the MOST (Microvariability and Oscillations of STars) microsatellite to obtain four weeks of contiguous high-precision broad-band visual photometry of the O7. 5III (n)((f)) star ξ Persei in 2011 November. This star is well known from previous work to show prominent DACs (discrete absorption components) on time-scales of about 2 d from UV spectroscopy and non-radial pulsation with one (l= 3) p-mode oscillation with a period of 3.5 h from optical spectroscopy. Our MOST-orbit (101.4 min) binned photometry fails to ...

Report this publication

Statistics

Seen 102 times