A Near-Infrared Survey of Northern Galactic Cepheid Variable Stars

Details A Near-Infrared Survey of Northern Galactic Cepheid Variable Stars A Near-Infrared Survey of Northern Galactic Cepheid Variable Stars

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21343307m&link_type=abstract

American Astronomical Society, AAS Meeting #213, #433.07; Bulletin of the American Astronomical Society, Vol. 41, p.302

Astronomy and Astrophysics

Astronomy

Scientific paper

We describe a near-infrared (NIR) synoptic survey of Northern Galactic Cepheid Variable Stars undertaken at the University of Wyoming's 0.6m telescope at Red Buttes Observatory (RBO). The observations were carried out using BIRCAM (Buttes InfraRed CAMera), a NIR camera developed for use at RBO. The sample consists of 134 fundamental mode cepheids ranging in periods from 3-60 days. Each Cepheid has been observed at 15-30 epochs spanning the full phase with J, H and K photometry at each epoch. The primary purpose of this survey is to provide ground-based NIR photometry of a large sample of Galactic Cepheids, which will compliment future trigonometric parallax data from the GAIA / SIM missions to better define the NIR Cepheid Period-Luminosity Relation and improve the calibration of the Hubble Constant. Preliminary results are presented.

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