Photometric evidence for the appearance of the lambda 5200 flux depression in helium-weak stars

Details Photometric evidence for the appearance of the lambda 5200 flux depression in helium-weak stars Photometric evidence for the appearance of the lambda 5200 flux depression in helium-weak stars

Mar 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981a%26a....95..213m&link_type=abstract

Astronomy and Astrophysics, vol. 95, no. 2, Mar. 1981, p. 213, 214.

Astronomy and Astrophysics

Astrophysics

15

Abundance, Helium, Line Spectra, Radiant Flux Density, Stellar Spectrophotometry, Visual Photometry, A Stars, B Stars, Hot Stars, Magnetic Stars

Scientific paper

Photoelectric photometry in the system defined by Maitzen (1976) was carried out for a sample of 20 population I He-weak and He-strong stars in order to look for the presence of the 5200 A flux depression feature which is typical for cooler magnetic Ap-stars. The majority of the He-weak stars show a modest, but definite enhancement of the photoelectric depression parameter, while the He-rich stars are obviously too hot for exhibiting this feature.

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