AAS 199th meeting, Washington, DC, January 2002
Session 101. DPOSS, LONEOS, LSST and DLS: New Survey Results
Display, Wednesday, January 9, 2002, 9:20am-6:30pm, Exhibit Hall

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[101.11] LONEOS RR Lyrae Survey: Early Results

A. Miceli, A. Rest, G.A. Miknaitis, R. Covarrubias, C.W. Stubbs, S Hawley (U. of Washington (Seattle)), G Magnier (CFHT/U. of Hawaii), B Koehn, T Bowell (Lowell Obs), K Cook (IGPP/LLNL)

We have investigated 6000 sq. deg. of data from the Lowell Observatory Near Earth Object Survey (LONEOS) with more than 20 epochs down to a limiting magnitude of 19 in R (see Rest, et.al these proceedings). From this dataset, thousands of candidate RR Lyrae stars have been extracted. RR Lyrae stars are excellent standard candles for two reasons: they have characteristic lightcurves which make them easily identifiable, and they also have small scatter in their intrinsic brightness. Thus, a sufficiently large sample of Galactic RR Lyrae stars can probe the structure of the Galaxy. We present lightcurves of several newly discovered RR Lyrae. We also present follow-up photometry with the 3.5-m Apache Point Observatory (APO) and 0.76-m Manastash Ridge Observatory (MRO) to determine the degree of contamination and for the refinement of selection criteria. Finally, we present radial velocity measurements taken at APO for a small sample of RR Lyrae stars identified in LONEOS.

The author(s) of this abstract have provided an email address for comments about the abstract: amiceli@astro.washington.edu

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