VLT, GROND and Danish Telescope observations of transits in the TRAPPIST-1 system
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VLT, GROND and Danish Telescope observations of transits in the TRAPPIST-1 system. / Southworth, John; Mancini, L.; Dominik, M.; Jørgensen, U. G.; Bozza, V.; Burgdorf, M. J.; Jaimes, R. Figuera; Haikala, L. K.; Henning, Th; Hinse, T. C.; Hundertmark, M.; Longa-Pena, P.; Rabus, M.; Rahvar, S.; Sajadian, S.; Skottfelt, J.; Snodgrass, C.
I: Observatory, Bind 142, Nr. 1290, 2022.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning
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TY - JOUR
T1 - VLT, GROND and Danish Telescope observations of transits in the TRAPPIST-1 system
AU - Southworth, John
AU - Mancini, L.
AU - Dominik, M.
AU - Jørgensen, U. G.
AU - Bozza, V.
AU - Burgdorf, M. J.
AU - Jaimes, R. Figuera
AU - Haikala, L. K.
AU - Henning, Th
AU - Hinse, T. C.
AU - Hundertmark, M.
AU - Longa-Pena, P.
AU - Rabus, M.
AU - Rahvar, S.
AU - Sajadian, S.
AU - Skottfelt, J.
AU - Snodgrass, C.
PY - 2022
Y1 - 2022
N2 - TRAPPIST-I 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 I of the Very Large Telescope). We obtained I8 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.
AB - TRAPPIST-I 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 I of the Very Large Telescope). We obtained I8 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.
KW - HIGH-PRECISION PHOTOMETRY
KW - EARTH-SIZED PLANETS
KW - TERRESTRIAL PLANETS
KW - ATMOSPHERES
KW - PARAMETERS
M3 - Journal article
VL - 142
JO - Observatory
JF - Observatory
SN - 0029-7704
IS - 1290
ER -
ID: 320486022