A survey of AE and A-type shell stars in the photographic region

Details A survey of AE and A-type shell stars in the photographic region A survey of AE and A-type shell stars in the photographic region

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26as...72..505j&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 72, no. 3, March 1988, p. 505-513.

Astronomy and Astrophysics

Astrophysics

28

A Stars, Astronomical Photography, Shell Stars, Stellar Spectra, Balmer Series, Classifications, Stellar Color, Stellar Rotation

Scientific paper

A total of 28 northern Ae and A-type shell stars were observed in the photographic spectral region. A regular pattern of line behavior with spectral type was found, which in part prolongs the behavior of Be stars toward cooler stars, although a discontinuity seems present around A0. A survey of other data concerning colors, rotation, variability, etc., is also presented. Photometrically the stars simulate the behavior of higher-luminosity objects. A large proportion of shells seems to be variable. The attempt to detect new shell stars among 13 stars known to be rapid rotators with normal spectra failed, however.

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