Journal
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Volume 411, Issue 1, Pages 162-166Publisher
WILEY-BLACKWELL PUBLISHING, INC
DOI: 10.1111/j.1365-2966.2010.17665.x
Keywords
asteroseismology; techniques: photometric; stars: activity; stars: emission-line, Be; stars: individual: Achernar; stars: oscillations
Categories
Funding
- STFC
- Danish Natural Science Research Council
- Science and Technology Facilities Council [PP/E001203/1, ST/F002041/1] Funding Source: researchfish
- STFC [ST/F002041/1, PP/E001203/1] Funding Source: UKRI
Ask authors/readers for more resources
We report on finding variations in amplitude of the two main oscillation frequencies found in the Be star Achernar, over a period of 5 yr. They were uncovered by analysing photometric data of the star from the Solar Mass Ejection Imager (SMEI) instrument. The two frequencies observed, 0.775 and 0.725 d(-1), were analysed in detail and their amplitudes were found to increase and decrease significantly over the 5-yr period, with the amplitude of the 0.725 d(-1) frequency changing by up to a factor of 8. The nature of this event has yet to be properly understood, but the possibility of it being due to the effects of a stellar outburst or a stellar cycle are discussed.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available
Share Paper
