SunPhot: Preparations for an Upcoming Quasar Variability Survey with the International Liquid Mirror Telescope
Ethen Sun,
Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1, Canada. Corresponding author: ethensun@astro.ubc.ca
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
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
Ermanno Borra,
Department of Physics, Université Laval, 2325, rue de l’Université, Québec, G1V 0A6, Canada
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
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.
Jiuyang Fu,
Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1, Canada
Baldeep Grewal,
Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1, Canada
Paul Hickson,
Department of Physics and Astronomy, University of British Columbia, 6224 Agricultural Road, Vancouver, BC V6T 1Z1, Canada
Brajesh Kumar,
Aryabhatta Research Institute of Observational sciencES (ARIES), Manora Peak, Nainital, 263001, India.
Kuntal Misra,
Aryabhatta Research Institute of Observational sciencES (ARIES), Manora Peak, Nainital, 263001, India.
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.
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
Jean Surdej,
Institute of Astrophysics and Geophysics, University of Liège, Allée du 6 Août 19c, 4000 Liège, Belgium
Abstract
Recent research suggests a correlation between the variability and intrinsic brightness of quasars. If calibrated, this could lead to the use of quasars on the cosmic distance ladder, but this work is currently limited by lack of quasar light curve data with high cadence and precision. The Python photometric data pipeline SunPhot is being developed as part of preparations for an upcoming quasar variability survey with the International Liquid Mirror Telescope (ILMT). SunPhot uses aperture photometry to directly extract light curves for a catalogue of sources from calibrated ILMT images. SunPhot version 2.1 is operational, but the project is awaiting completion of ILMT commissioning.
Keywords : instrumentation, aperture photometry, quasars
Pour citer cet article
Ethen Sun, Bhavya Ailawadhi, Talat Akhunov, Ermanno Borra, Monalisa Dubey, Naveen Dukiya, Jiuyang Fu, Baldeep Grewal, Paul Hickson, Brajesh Kumar, Kuntal Misra, Vibhore Negi, Kumar Pranshu & Jean Surdej, «SunPhot: Preparations for an Upcoming Quasar Variability Survey with the International Liquid Mirror Telescope», 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, 910-917 URL : http://popups.ulg.be/0037-9565/index.php?id=11922.