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A Search for Variable Stars and Planetary Occultations in NGC 2301. I. Techniques

John L. Tonry, Steve B. Howell, Mark E. Everett, Steven A. Rodney, Mark Willman and Cassandra VanOutryve
Publications of the Astronomical Society of the Pacific
Vol. 117, No. 829 (March 2005), pp. 281-289
DOI: 10.1086/428596
Stable URL: http://www.jstor.org/stable/10.1086/428596
Page Count: 9
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Abstract

ABSTRACT We observed the young open cluster NGC 2301 for 14 nights in 2004 February using the orthogonal transfer CCD camera OPTIC. We used point‐spread function shaping techniques (“square stars”) during the observations, allowing us to obtain a larger dynamic range (4.5 mag) of high photometric precision results (≤2 mmag). 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.

Notes and References

This item contains 13 references.

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