Detection of Variable Stars in the Open Cluster M11 Using Difference Image Analysis Pipeline

Detection of Variable Stars in the Open Cluster M11 Using Difference Image Analysis Pipeline

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...

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Published in:Journal of astronomy and space sciences Vol. 27; no. 4; pp. 289 - 307
Main Authors: Lee, Chung-Uk, Koo, Jae-Rim, Kim, Seung-Lee, Lee, Jae-Woo, Park, Byeong-Gon, Han, Cheong-Ho
Format: Journal Article
Language:English
Published: 한국우주과학회 01-12-2010
The Korean Space Science Society
Subjects:
difference image analysis
M11
photometry
천문학
M11
photometry
difference image analysis
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Abstract 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.
AbstractList 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. KCI Citation Count: 1
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.
Author Lee, Jae-Woo
Han, Cheong-Ho
Lee, Chung-Uk
Koo, Jae-Rim
Kim, Seung-Lee
Park, Byeong-Gon
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10.1086/307567
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10.1086/523113
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천문학
Title Detection of Variable Stars in the Open Cluster M11 Using Difference Image Analysis Pipeline
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