The period-luminosity relation of Mira stars

Details The period-luminosity relation of Mira stars The period-luminosity relation of Mira stars

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984ap%26ss.102..295v&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 102, no. 2, July 1984, p. 295-300.

Astronomy and Astrophysics

Astrophysics

5

Mira Variables, Stellar Luminosity, Stellar Spectrophotometry, Variable Stars, Galactic Nuclei, Magellanic Clouds, Star Clusters, Stellar Magnitude

Scientific paper

Published photometry in Sgr I is used to derive the period-luminosity relation for Mira variables in yellow and in blue light. The observed dispersion about the adopted relation is comparable to that of RR Lyrae stars around their mean luminosity. This suggests that the Mira star period-luminosity relation has a relatively small dispersion and is, therefore, a powerful tool for astronomical distance determination. The calibration of the Mira period-luminosity relation indicates that Glass and Feast may have overestimated the absorption in the direction of Sgr I and NGC 6522.

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