Large Magellanic Cloud Near-infrared Synoptic Survey. V. PeriodLuminosity Relations of Miras
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2017. The American Astronomical Society. All rights reserved.. We study the near-infrared properties of 690 Mira candidates in the central region of the Large Magellanic Cloud, based on time-series observations at JHK s. We use densely sampled I-band observations from the OGLE project to generate template light curves in the near-infrared and derive robust mean magnitudes at those wavelengths. We obtain near-infrared Period-Luminosity relations for oxygen-rich Miras with a scatter as low as 0.12 mag at K s. We study the Period-Luminosity-Color relations and the color excesses of carbon-rich Miras, which show evidence for a substantially different reddening law.
author list (cited authors)
Yuan, W., Macri, L. M., He, S., Huang, J. Z., Kanbur, S. M., & Ngeow, C.