Near-infrared Period-Luminosity relations of Large Magellanic Cloud Cepheids

Details Near-infrared Period-Luminosity relations of Large Magellanic Cloud Cepheids Near-infrared Period-Luminosity relations of Large Magellanic Cloud Cepheids

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21934814s&link_type=abstract

American Astronomical Society, AAS Meeting #219, #348.14

Astronomy and Astrophysics

Astronomy

Scientific paper

We present near-infrared time-series PSF photometry of over 1,600 LMC Cepheids previously discovered by the OGLE III survey. The goal of this work is to improve the near-infrared Cepheid P-L relation in the LMC, often used as an anchor of the Extragalactic Distance Scale. We also wish to determine the presence of non-linearities in the slopes of these relations.
Observations were obtained using CPAPIR at the CTIO 1.5m telescope as part of the NOAO/SMARTS program. We present details of our analysis, including photometric calibration using 2MASS, preliminary light curves, and Period-Luminosity relations.

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