Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010jass...27..289l&link_type=abstract
Journal of Astronomy and Space Sciences. Vol. 27, no. 4, 289-307
Astronomy and Astrophysics
Astronomy
M11, Photometry, Difference Image Analysis
Scientific paper
We developed a photometric pipeline to be used for a wide field survey. This pipeline employs the difference image analysis (DIA) method appropriate for the photometry of star dense field such as the Galactic bulge. To verify the performance of pipeline, the observed dataset of the open cluster M11 was re-processed. One hundred seventy eight variable stars were newly discovered by analyzing the light curves of which photometric accuracy was improved through the DIA. The total number of variable stars in the M11 observation region is 335, including 157 variable stars discovered by previous studies. We present the catalogue and light curves for the 178 variable stars. This study shows that the photometric pipeline using the DIA is very useful in the detection of variable stars in a cluster.
Han Cheongho
Kim Seung-Lee
Koo Jae-Rim
Lee Chung Uk
Lee Jae Woo
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