A major observational campaign on the hybrid pulsator HS0702+6043 |
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| Authors: | M Francoeur G Fontaine E M Green |
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| Institution: | 1. Département de Physique, Université de Montréal, C.P. 6128, Succ. Centre-ville, Montréal, H3C 3J7, Canada
2. Steward Observatory, University of Arizona, Tucson, AZ, 85721, USA
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| Abstract: | 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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