VLT, GROND and Danish Telescope observations of transits in the TRAPPIST-1 system
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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.
Original language | English |
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Journal | Observatory |
Volume | 142 |
Issue number | 1290 |
Number of pages | 11 |
ISSN | 0029-7704 |
Publication status | Accepted/In press - 2022 |
- HIGH-PRECISION PHOTOMETRY, EARTH-SIZED PLANETS, TERRESTRIAL PLANETS, ATMOSPHERES, PARAMETERS
Research areas
Links
- https://arxiv.org/abs/2207.05874v2
Submitted manuscript
ID: 320486022