The new helium-weak star HR 446

Details The new helium-weak star HR 446 The new helium-weak star HR 446

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ap%26ss.169..177h&link_type=abstract

(IAU, European Regional Astronomy Meeting on New Windows to the Universe, 11th, La Laguna, Spain, July 3-8, 1989) Astrophysics a

Astronomy and Astrophysics

Astrophysics

2

A Stars, Peculiar Stars, Stellar Spectra, Stellar Spectrophotometry, H Lines, Helium, Radial Velocity, Stellar Rotation, Ubv Spectra

Scientific paper

The CP star HR 446 (HD 9531, B8p V, m = 5.69) is one of the CP stars with no definitely assigned peculiarity type. It is shown by application of synthetic spectra that the star in a helium-weak type of the titanium-strontium subgroup. Photometric observations confirmed the rotational period of 0.6684 d discovered earlier. The present photometric observations do not indicate rapid variability exceeding 0.005 mag within the limits of 5-300 min.

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