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Southworth, J, Mancini, L, Dominik, M, Jorgensen, UG, Bozza, V, Burgdorf, MJ, Jaimes, RF, Haikala, LK, Henning, T, Hinse, TC, Hundertmark, M, Longa-Pena, P, Rabus, M, Rahvar, S, Sajadian, S, Skottfelt, J and Snodgrass, C (2022) VLT, GROND, AND DANISH TELESCOPE OBSERVATIONS OF TRANSITS IN THE TRAPPIST-I SYSTEM. OBSERVATORY, 142 (1290). 220 - 229. ISSN 0029-7704

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Abstract

TRAPPIST-1 is an ultra-cool dwarf that hosts seven known transiting planets. We present photometry of the system obtained using three telescopes at ESO La Silla (the Danish 1.54 m telescope and the 2.2 m MPI telescope) and Paranal (Unit Telescope 1 of the Very Large Telescope). We obtained 18 light curves from the Danish telescope, eight from the 2.2 m and four from the VLT. From these we measure 25 times of mid-transit for four of the planets (b, c, f, g). These light curves and times of mid-transit will be useful in determining the masses and radii of the planets, which show variations in their transit times due to gravitational interactions.

Item Type: Article
Additional Information: The final version of this article and all relevant information related to it, including copyrights, can be found on the publisher website.
Subjects: Q Science > Q Science (General)
Q Science > QB Astronomy
Q Science > QB Astronomy > QB460 Astrophysics
Divisions: Faculty of Natural Sciences > School of Chemical and Physical Sciences
Related URLs:
Depositing User: Symplectic
Date Deposited: 04 Oct 2022 09:50
Last Modified: 04 Oct 2022 09:50
URI: https://eprints.keele.ac.uk/id/eprint/11497

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