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

Published online by Cambridge University Press:  12 April 2016

Amy D. Forestell ,
Thomas G. Barnes III ,
Christopher Sneden  and
Thomas J. Moffett
Amy D. Forestell
Affiliation:
The University of Texas at Austin, Department of Astronomy, 1 University Station, C1400, Austin, TX 78712-0259, USA
Thomas G. Barnes III
Affiliation:
The University of Texas at Austin, Department of Astronomy, 1 University Station, C1400, Austin, TX 78712-0259, USA
Christopher Sneden
Affiliation:
The University of Texas at Austin, Department of Astronomy, 1 University Station, C1400, Austin, TX 78712-0259, USA
Thomas J. Moffett
Affiliation:
Purdue University, Physics Department, 1396 Physics Bldg., West Lafayette, IN 47907-1396, USA

Abstract

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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.

Type
Part 2. What variable stars tell us about the Local Group, including the distance scale
Information
International Astronomical Union Colloquium , Volume 193: Variable Stars in the Local Group , 2004 , pp. 99 - 102
Copyright
Copyright © Astronomical Society of the Pacific 2004

References

Alibert, Y., Baraffe, I., Hauschildt, P., Allard, F. 1999 A&A, 344, 551 Google Scholar
Barnes, T.G., Dominy, J.F., Evans, D.S., Kelton, P.W., Parsons, S.B., Stover, R.J. 1977 MNRAS, 178, 661 Google Scholar
Barnes, T.G., Jefferys, W.H., Berger, J.O., Mueller, P.J., Orr, K., Rodriguez, R. 2003 ApJ, 592, 539 Google Scholar
Bono, G., Caputo, F., Cassisi, S., Marconi, M., Piersanti, L., Tornambè, A. 2000 ApJ, 543, 955 Google Scholar
Cousins, A.W.J. 1981 Mon. Not. Astr. Soc. South Africa, 40, 37 Google Scholar
Fiorentino, G., Caputo, F., Marconi, M., Musella, I. 2002 ApJ, 576, 402 Google Scholar
Freedman, W.L., et al. 2001 ApJ, 553, 47 Google Scholar
Kaluzny, J., Stanek, K.Z., Krockenberger, M., Sasselov, D.D., Tonry, J.L., Mateo, M. 1998 AJ, 115, 1016 Google Scholar
Luck, R.E., Moffett, T.J., Barnes, T.G., Gieren, W.P. 1998 AJ, 115, 605 Google Scholar
Nordgren, T.E., Lane, B.F., Hindsley, R.B., Kervella, P. 2002 AJ, 123, 3380 Google Scholar
Sneden, C. 1973 ApJ, 184, 839 Google Scholar
Tonry, J., Davis, M. 1979 AJ, 84, 1511 Google Scholar