Spectroscopy of Overluminous Cepheids in the Magellanic Clouds
1984 ◽
Vol 108
◽
pp. 223-224
Keyword(s):
Rr Lyrae
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The Small Magellanic Cloud is known to contain types of short period Cepheid variable stars not yet discovered in either the Large Magellanic Cloud or, with the exception of a single star, in the Galaxy. These variables can be divided into two categories: anomalous Cepheids and Wesselink-Shuttleworth (WS) stars. The former, which have also been found in dwarf spheroidal systems and in the globular cluster NGC 5466, have periods of 0.4–3 days, but average 0.7–1.0 mag. brighter than RR Lyrae and BL Her stars of equal period. The stars we call WS stars have periods less than about 1.1 day and, at MV = −1 to −2, are brighter than anomalous Cepheids of equal period.
1991 ◽
Vol 148
◽
pp. 161-164
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Keyword(s):
1982 ◽
Vol 99
◽
pp. 469-472
2016 ◽
Vol 12
(S323)
◽
pp. 384-385
1991 ◽
Vol 148
◽
pp. 438-439
Keyword(s):
1991 ◽
Vol 148
◽
pp. 15-23
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1998 ◽
Vol 15
(1)
◽
pp. 128-131
◽
Keyword(s):
1991 ◽
Vol 148
◽
pp. 401-406
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