A major observational campaign on the hybrid pulsator HS0702+6043

Details A major observational campaign on the hybrid pulsator HS0702+6043 A major observational campaign on the hybrid pulsator HS0702+6043

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010ap%26ss.329..189f&link_type=abstract

Astrophysics and Space Science, Volume 329, Issue 1-2, pp. 189-192

Astronomy and Astrophysics

Astrophysics

1

Stars: Subdwarf, Stars: Individual: Hs0702+6043, Asteroseismology

Scientific paper

HS0702+6043 (DW Lyn) is one of the very few known sdB pulsators which exhibit both pressure- and gravity-mode oscillations. Given its high potential for asteroseismology, we carried out an extensive campaign in integrated light photometry at the Steward Observatory 1.6 m Kuiper Telescope using the new CCD camera Mont4K, a joint venture between the Université de Montréal and the University of Arizona. Over a period starting November 1st 2007 up to March 14th 2008, we were able to gather some 424.5 hours of useful data. To our knowledge, never before a pulsating sdB star has been observed at such high frequency resolution and sensitivity. We present the results of a preliminary analysis of this unique data set.

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