A Theoretical Period-Luminosity Relation of Dwarf Cepheids
1993 ◽
Vol 138
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pp. 437-438
Keyword(s):
F Stars
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Dwarf Cepheids (large-amplitude δ Sct variables and SXPhe variables in the GCVS) are late A-type stars near light maximum and early-F stars near light minimum. In the lower part of the instability strip where these stars are found the pulsation constant Q varies only slightly. As pointed out by Andreasen, Hejlesen, and Petersen (1983) this makes it easy to transform a theoretical HR or alternatively a (logTe, logg) diagram to a theoretical logTe, logP0) diagram by the use of the relation. This follows from the equations:where P0 is the fundamental period of pulsation. The periods, of course, can be determined with very high accuracy.
1996 ◽
Vol 176
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pp. 53-60
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Keyword(s):
2014 ◽
Vol 984-985
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pp. 67-72
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Keyword(s):
Keyword(s):
2019 ◽
Vol 38
(1)
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pp. 325-347
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Keyword(s):
Keyword(s):