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VLT, GROND, AND DANISH TELESCOPE OBSERVATIONS OF TRANSITS IN THE TRAPPIST-I SYSTEM

Southworth, J.; Mancini, L.; Dominik, M.; Jørgensen, U.G.; Bozza, V.; Burgdorf, M.J.; Figuera Jaimes, R.; Haikala, L.K.; Henning, Th.; Hinse, T.C.; Hundertmark, M.; Longa-Pe˜na, P.; Rabus, M.; Rahvar, S.; Sajadian, S.; Skottfelt, J.; Snodgrass, C.

VLT, GROND, AND DANISH TELESCOPE OBSERVATIONS OF TRANSITS IN THE TRAPPIST-I SYSTEM Thumbnail


Authors

L. Mancini

M. Dominik

U.G. Jørgensen

V. Bozza

M.J. Burgdorf

R. Figuera Jaimes

L.K. Haikala

Th. Henning

T.C. Hinse

M. Hundertmark

P. Longa-Pe˜na

M. Rabus

S. Rahvar

S. Sajadian

J. Skottfelt

C. Snodgrass



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.

Citation

Southworth, J., Mancini, L., Dominik, M., Jørgensen, U., Bozza, V., Burgdorf, M., …Snodgrass, C. (2022). VLT, GROND, AND DANISH TELESCOPE OBSERVATIONS OF TRANSITS IN THE TRAPPIST-I SYSTEM. Observatory, 142, 220 - 229

Acceptance Date Oct 1, 2022
Publication Date Oct 31, 2022
Publicly Available Date Nov 1, 2023
Journal OBSERVATORY
Print ISSN 0029-7704
Peer Reviewed Peer Reviewed
Volume 142
Pages 220 - 229

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