Delta-a photometry of Be/shell stars

Details Delta-a photometry of Be/shell stars Delta-a photometry of Be/shell stars

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26as...77..351p&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 77, no. 3, March 1989, p. 351-356.

Astronomy and Astrophysics

Astrophysics

7

B Stars, Shell Stars, Stellar Spectrophotometry, Peculiar Stars, Stellar Spectra, Stellar Temperature

Scientific paper

Existing spectrophotometry of Be/stars is used to synthesize the index Delta-a, which is commonly used to identify CP2 stars (Ap stars). Together with direct measurements of Delta-a, it is shown that the photometric behavior of the Be star Pleione during its recent shell episode, mimicking a CP2-star by its Delta-a, is not a common phenomenon among Be stars. The possible contamination of photometrically detected CP2 stars is therefore negligible.

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