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Bhavya Ailawadhi, Talat Akhunov, Ermanno Borra, Monalisa Dubey, Naveen Dukiya, Jiuyang Fu, Baldeep Grewal, Paul Hickson, Brajesh Kumar, Kuntal Misra, Vibhore Negi, Kumar Pranshu, Ethen Sun & Jean Surdej

An Automated Photometric Pipeline for the ILMT data

(Volume 93 - Année 2024 — No 2 - Proceeedings of the 3rd BINA Workshop on the Scientific Potential of the Indo-Belgian Cooperation)
DOI: 10.25518/0037-9565.11892
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Open Access

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Abstract

The International Liquid Mirror Telescope (ILMT) is a 4-meter survey telescope continuously observing towards the zenith in the SDSS g’, r’, and i’ bands. This survey telescope is designed to detect various astrophysical transients (for example, supernovae) and very faint objects like multiply-imaged quasars and low surface brightness galaxies. A single scan of a 22′ strip of sky contains a large amount of photometric information. To process this type of data, it becomes critical to have tools or pipelines that can handle it efficiently and accurately with minimal human biases. We offer a fully automated pipeline generated in Python to perform aperture photometry over the ILMT data acquired with the CCD in Time Delayed Integration (TDI) mode. The instrumental magnitudes are calibrated with respect to the Pan-STARRS-1 catalogue. The light curves generated from the calibrated magnitudes will allows us to characterize the objects as variable stars or rapidly decaying transients.

Keywords : Liquid Mirror Telescope, Crossmatching, Photometry

To cite this article

Bhavya Ailawadhi, Talat Akhunov, Ermanno Borra, Monalisa Dubey, Naveen Dukiya, Jiuyang Fu, Baldeep Grewal, Paul Hickson, Brajesh Kumar, Kuntal Misra, Vibhore Negi, Kumar Pranshu, Ethen Sun & Jean Surdej, «An Automated Photometric Pipeline for the ILMT data», Bulletin de la Société Royale des Sciences de Liège [En ligne], Volume 93 - Année 2024, No 2 - Proceeedings of the 3rd BINA Workshop on the Scientific Potential of the Indo-Belgian Cooperation, 820-827 URL : https://popups.uliege.be/0037-9565/index.php?id=11892.

About: Bhavya Ailawadhi

Aryabhatta Research Institute of Observational sciencES (ARIES), Manora Peak, Nainital, 263001, India and Department of Physics, Deen Dayal Upadhyaya Gorakhpur University, Gorakhpur, 273009, India. Corresponding author: bhavya@aries.res.in

About: Talat Akhunov

National University of Uzbekistan, Department of Astronomy and Astrophysics, 100174 Tashkent, Uzbekistan and Ulugh Beg Astronomical Institute of the Uzbek Academy of Sciences, Astronomicheskaya 33, 100052 Tashkent, Uzbekistan

About: Ermanno Borra

Department of Physics, Université Laval, 2325, rue de l’Université, Québec, G1V 0A6, Canada

About: Monalisa Dubey

Aryabhatta Research Institute of Observational sciencES (ARIES), Manora Peak, Nainital, 263001, India and Department of Applied Physics, Mahatma Jyotiba Phule Rohilkhand University, Bareilly, 243006, India

About: Naveen Dukiya

Aryabhatta Research Institute of Observational sciencES (ARIES), Manora Peak, Nainital, 263001, India and Department of Applied Physics, Mahatma Jyotiba Phule Rohilkhand University, Bareilly, 243006, India

About: Jiuyang Fu

Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1, Canada

About: Baldeep Grewal

Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1, Canada

About: Paul Hickson

Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1, Canada

About: Brajesh Kumar

Aryabhatta Research Institute of Observational sciencES (ARIES), Manora Peak, Nainital, 263001, India

About: Kuntal Misra

Aryabhatta Research Institute of Observational sciencES (ARIES), Manora Peak, Nainital, 263001, India

About: Vibhore Negi

Aryabhatta Research Institute of Observational sciencES (ARIES), Manora Peak, Nainital, 263001, India and Department of Physics, Deen Dayal Upadhyaya Gorakhpur University, Gorakhpur, 273009, India

About: Kumar Pranshu

Aryabhatta Research Institute of Observational sciencES (ARIES), Manora Peak, Nainital, 263001, India and Department of Applied Optics and Photonics, University of Calcutta, Kolkata, 700106, India

About: Ethen Sun

Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1, Canada

About: Jean Surdej

Institute of Astrophysics and Geophysics, University of Liège, Allée du 6 Août 19c, 4000 Liège, Belgium