Unification of VW Arietis observations obtained in multisite campaign.

Details Unification of VW Arietis observations obtained in multisite campaign. Unification of VW Arietis observations obtained in multisite campaign.

Apr 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999kfnt...15..160d&link_type=abstract

Kinematika Fiz. Nebesn. Tel, Tom 15, No. 2, p. 160 - 170

Astronomy and Astrophysics

Astronomy

Delta Scuti Stars: Binaries, Delta Scuti Stars: Surveys

Scientific paper

The two-channel photometric observations of the δ Scuti star VW Arietis (BDS 1269A) obtained at the Mt. Dushak-Erekdag Station of the Odessa Astron. Obs., Turkmenistan, were combined with the STEPHI Network four-channel photometry made at Xinglong Obs., China, and Observatorio del Teide, Spain, during the same season. The data set 164.9 hours long (16 days in October 1993) was analyzed. A five-frequency solution is proposed at the present stage of investigation. The suggestion that VW Arietis belongs to a small group of peculiar λ Bootis stars removes some contradictions in previous results, the existence of a binary system with a peculiar and a normal star finds a natural explanation. A possible pulsation mode identification is suggested.

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