Infrared Photometry of Mira Variables in the Large Magellanic Cloud and the Pulsational Properties of Miras

Details Infrared Photometry of Mira Variables in the Large Magellanic Cloud and the Pulsational Properties of Miras Infrared Photometry of Mira Variables in the Large Magellanic Cloud and the Pulsational Properties of Miras

Apr 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982mnras.199..245g&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Vol. 199, P. 245, 1982

Astronomy and Astrophysics

Astronomy

48

Scientific paper

Infrared J, H, K observations are presented for eleven Mira variables in the Large Magellanic Cloud. Except for a known carbon variable and an object with poor colours, the variables lie in the region of the (J-H)--(H-K) diagram populated by galactic Me Miras. They also fit galactic (J-K)-logP and log TBB-log P relations. Period-luminosity relations in MJ, MH, MK and Mbol are all well defined. A log TBB-logP relation is derived for galactic Me Miras. Combining this with the period-luminosity relation leads to the conclusion that the stars are pulsating in the r t overtone with masses ranging from ˜0.8Msun at a period of 150 day to ˜1.5Msun at 500 day.

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