A Preliminary Survey of Short Time-Scale Optical Variables with ROTSE

Details A Preliminary Survey of Short Time-Scale Optical Variables with ROTSE A Preliminary Survey of Short Time-Scale Optical Variables with ROTSE

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...197.4621m&link_type=abstract

American Astronomical Society, 197th AAS Meeting, #46.21; Bulletin of the American Astronomical Society, Vol. 32, p.1480

Astronomy and Astrophysics

Astronomy

Scientific paper

We have performed a preliminary optical survey of short timescale variability with the ROTSE-I telephoto array. The data sample is divided into two parts. The first is a survey of 256 square degrees ( 120k sources) imaged every 80 s for a cumulative 20 hrs to a sensitivity of approximately magnitude 15.5. The second is a similarly sensitive survey of 512 square degrees ( 250k sources) imaged every 80 s (with 7 minute gaps) for a total of approximately 60 hrs. A further 0.4 mag. increase in sensitivity is obtained by co-adding these frames in pairs. We have identified a variety of new variable stars in this sample, including many Delta Scuti stars and contact binaries. Preliminary characterization of these sources will be presented.

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