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.
Originalsprog | Engelsk |
---|---|
Tidsskrift | Observatory |
Vol/bind | 142 |
Udgave nummer | 1290 |
Antal sider | 11 |
ISSN | 0029-7704 |
Status | Accepteret/In press - 2022 |
Links
- https://arxiv.org/abs/2207.05874v2
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ID: 320486022