The pulsation mode and period-luminosity relationship of cool variables in globular clusters

Details The pulsation mode and period-luminosity relationship of cool variables in globular clusters The pulsation mode and period-luminosity relationship of cool variables in globular clusters

Apr 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986mnras.219..525w&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 219, April 1, 1986, p. 525-536.

Astronomy and Astrophysics

Astronomy

60

Abundance, Cool Stars, Globular Clusters, Stellar Luminosity, Variable Stars, Vibration Mode, Bolometers, Stellar Color, Stellar Magnitude, Stellar Temperature, Tables (Data)

Scientific paper

The period-luminosity-temperature relationship for globular cluster red and yellow variables is examined. The results suggest that the higher temperature, more metal-deficient cluster variables pulsate in the fundamental mode, while the lower temperature more metal-rich variables pulsate in the first overtone. On the assumption that this is correct, a relationship between fundamental period and bolometric magnitude is derived for cluster variables with observed periods of between 1 and 300 days.

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