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Investigating Extra-solar Planetary System Qatar-1 through Transit Observations

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dc.contributor.author Thakur, P
dc.contributor.author Mannaday, V. K
dc.contributor.author Jiang, I
dc.contributor.author Sahu, D. K
dc.contributor.author Chand, S
dc.date.accessioned 2020-11-11T01:14:27Z
dc.date.available 2020-11-11T01:14:27Z
dc.date.issued 2018-04
dc.identifier.citation Bulletin de la Société Royale des Sciences de Liège, Vol. 87, Actes de colloques, 2018, p. 132 - 136 en_US
dc.identifier.issn 0037-9565
dc.identifier.uri http://prints.iiap.res.in/handle/2248/6834
dc.description Open Access © Bulletin de la Societe Royale des Sciences de Liege; https://popups.uliege.be/0037-9565/index.php?id=7577 en_US
dc.description.abstract We report the results of the transit timing variation (TTV) analysis of the extra-solar planet Qatar1b using thirty eight light curves. Our analysis combines thirty five previously available transit light curves with three new transits observed by us between June 2016 and September 2016 using the 2-m Himalayan Chandra Telescope (HCT) at the Indian Astronomical Observatory (Hanle, India). From these transit data, the physical and orbital parameters of the Qatar-1 system are determined. In addition to this, the ephemeris for the orbital period and mid-transit time are refined to investigate the possible TTV. We find that the null-TTV model provides the better fit to the (O-C) data. This indicates that there is no evidence for TTVs to confirm the presence of additional planets in the Qatar-1 system. The use of the 3.6-m Devasthal Optical Telescope (DOT) operated by the Aryabhatta Research Institute of Observational Sciences (ARIES, Nainital, India) could improve the photometric precision to examine the signature of TTVs in this system with a greater accuracy than in the present work. en_US
dc.language.iso en en_US
dc.publisher Societe Royale des Sciences de Liege en_US
dc.subject Astronomy en_US
dc.subject Astrophysics en_US
dc.subject Exoplanets en_US
dc.subject Transits en_US
dc.title Investigating Extra-solar Planetary System Qatar-1 through Transit Observations en_US
dc.type Article en_US


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