HD 207331 a new $δ$ Scuti star in the Cygnus field: discovery and follow-up observations

Details HD 207331 a new $δ$ Scuti star in the Cygnus field: discovery and follow-up observations HD 207331 a new $δ$ Scuti star in the Cygnus field: discovery and follow-up observations

2010-05-25

arxiv.org/abs/1005.4705v3

Astronomische Nachrichten, 331, No.9-10 (2010)/P37

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

4 pages, 3 figures, 4 tables, Astronomische Nachrichten, Proceedings of the HELAS IV Conference: Seismological Challenges for

Scientific paper

Preliminary results on the discovery and follow-up observations of a new $\delta$ Scuti pulsator in the Cygnus field are presented. The variability of the star HD 207331 was detected while testing a Str\"omgren spectrophotometer attached to the H.L. Johnson 1.5-m telescope at the San Pedro M\'artir observatory, M\'exico. CCD photometric data acquired soon after confirmed its variability. A few hours of $uvby$ differential photoelectric photometry during three nights revealed at least two beating periods. A two-site observational campaign carried out during one week in 2009 confirms the multi-periodic nature of this new $\delta$ Scuti pulsator.

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