A Search for Variable Stars and Planetary Occultations in NGC2301 I: Techniques

Details A Search for Variable Stars and Planetary Occultations in NGC2301 I: Techniques A Search for Variable Stars and Planetary Occultations in NGC2301 I: Techniques

2005-01-04

arxiv.org/abs/astro-ph/0501052v1

Astronomy and Astrophysics

Astrophysics

Scientific paper

10.1086/428596

We observed the young open cluster NGC 2301 for 14 nights in Feb. 2004 using the orthogonal transfer CCD camera (OPTIC). We used PSF shaping techniques ("square stars") during the observations allowing a larger dynamic range (4.5 magnitudes) of high photometric precision results ($\le$2 mmag) to be obtained. These results are better than similar observing campaigns using standard CCD imagers. This paper discusses our observational techniques and presents initial results for the variability statistics found in NGC 2301. Details of the variability statistics as functions of color, variability type, stellar type, and cluster location will appear in paper II.

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