Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aas...20312702k&link_type=abstract
American Astronomical Society Meeting 203, #127.02; Bulletin of the American Astronomical Society, Vol. 35, p.1414
Astronomy and Astrophysics
Astronomy
Scientific paper
We present preliminary results on the RR Lyrae variable stars identified in the variability survey conducted during the first generation Robotic Optical Transient Search Experiment (ROTSE-I). The survey covers all the sky north of declination -30 degrees. Problems in the identification of RR Lyrae variables will be discussed. The RR Lyrae stars in the ROTSE-I database include RR Lyrae stars of the Galactic thick disk and halo to distances of about 7 kiloparsecs from the Sun. These RR Lyrae stars thus occupy the intermediate position between those identified in the surveys of the Galactic bulge and those found in surveys of the outer halo. Results will be presented on the periods, amplitudes, and Oosterhoff properties of the RR Lyrae stars in the ROTSE-I fields reduced to date. Implications of the ROTSE-I survey for dual component models of the Galactic halo will be discussed.
This research was funded by the National Science Foundation.
Kinemuchi Karen
ROTSE Collaboration
Smith Harold A.
Wozniak Prezemyslaw R.
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