The Delta Scuti Star 44 Tauri

Details The Delta Scuti Star 44 Tauri The Delta Scuti Star 44 Tauri

Apr 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aspc..349..181a&link_type=abstract

Astrophysics of Variable Stars, Pecs, Hungary, 5-10 September 2005, Sterken, C. and Aerts, C. (eds). ASP Conference Series, Vol.

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

The Delta Scuti star 44 Tau was the target of an observational campaign spread over three years. Data were collected at two different observatories in the Stroemgren v and y filters. We present our data analysis and show that 44 Tau oscillates with at least 13 independent frequencies. Amplitude variations were detected and a close frequency pair was found. An explanation in terms of rotational splitting is very improbable. Two oscillation modes were identified as the radial fundamental mode and the first radial overtone, respectively. In addition, we discuss the low v sin i value of 6.8 km/s.

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