Radial velocities, metallicities, and distances of Cepheids in M31 and M33

Details Radial velocities, metallicities, and distances of Cepheids in M31 and M33 Radial velocities, metallicities, and distances of Cepheids in M31 and M33

May 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aspc..310...99f&link_type=abstract

Variable Stars in the Local Group, IAU Colloquium 193, Proceedings of the conference held 6-11 July, 2003 at Christchurch, New Z

Astronomy and Astrophysics

Astronomy

1

Scientific paper

Cepheid variable stars are fundamental to the calibration of the extragalactic distance scale. We present radial velocities, preliminary metallicities, and preliminary surface brightness distances of Cepheids in Local Group galaxies M31 and M33 using data obtained with the High Resolution Spectrograph on the Hobby-Eberly Telescope at McDonald Observatory. These data are the first step toward surface brightness distance measurements and metallicity calibrations of these extragalactic Cepheids.

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