VLT, GROND and Danish Telescope observations of transits in the TRAPPIST-1 system

John Southworth; 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-Peña; M. Rabus; S. Rahvar; S. Sajadian; J. Skottfelt; C. Snodgrass

doi:10.48550/arXiv.2207.05874

VLT, GROND and Danish Telescope observations of transits in the TRAPPIST-1 system

John Southworth^*, 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-Peña, M. Rabus, S. Rahvar, S. Sajadian, J. Skottfelt, C. Snodgrass

^*Corresponding author for this work

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Pages (from-to)	220-229
Number of pages	10
Journal	Observatory
Volume	142
DOIs	https://doi.org/10.48550/arXiv.2207.05874
Publication status	Published - 1 Oct 2022

Keywords / Materials (for Non-textual outputs)

Astrophysics - Earth and Planetary Astrophysics

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Southworth, J., Mancini, L., Dominik, M., Jørgensen, U. G., Bozza, V., Burgdorf, M. J., Jaimes, R. F., Haikala, L. K., Henning, T., Hinse, T. C., Hundertmark, M., Longa-Peña, P., Rabus, M., Rahvar, S., Sajadian, S., Skottfelt, J., & Snodgrass, C. (2022). VLT, GROND and Danish Telescope observations of transits in the TRAPPIST-1 system. Observatory, 142, 220-229. https://doi.org/10.48550/arXiv.2207.05874

@article{03648c0c81514ab4bc1c9975809c4c1c,

title = "VLT, GROND and Danish Telescope observations of transits in the TRAPPIST-1 system",

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. ",

keywords = "Astrophysics - Earth and Planetary Astrophysics",

author = "John Southworth and L. Mancini and M. Dominik and J{\o}rgensen, {U. G.} and V. Bozza and Burgdorf, {M. J.} and Jaimes, {R. Figuera} and Haikala, {L. K.} and Th Henning and Hinse, {T. C.} and M. Hundertmark and P. Longa-Pe{\~n}a and M. Rabus and S. Rahvar and S. Sajadian and J. Skottfelt and C. Snodgrass",

note = "Accepted for publication in The Observatory Magazine. 11 pages, 3 tables, 3 figures",

year = "2022",

month = oct,

day = "1",

doi = "10.48550/arXiv.2207.05874",

language = "English",

volume = "142",

pages = "220--229",

journal = "Observatory",

issn = "0029-7704",

publisher = "Rutherford Appleton Laboratory",

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Southworth, J, Mancini, L, Dominik, M, Jørgensen, UG, Bozza, V, Burgdorf, MJ, Jaimes, RF, Haikala, LK, Henning, T, Hinse, TC, Hundertmark, M, Longa-Peña, P, Rabus, M, Rahvar, S, Sajadian, S, Skottfelt, J & Snodgrass, C 2022, 'VLT, GROND and Danish Telescope observations of transits in the TRAPPIST-1 system', Observatory, vol. 142, pp. 220-229. https://doi.org/10.48550/arXiv.2207.05874

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-Peña, P.

AU - Rabus, M.

AU - Rahvar, S.

AU - Sajadian, S.

AU - Skottfelt, J.

AU - Snodgrass, C.

N1 - Accepted for publication in The Observatory Magazine. 11 pages, 3 tables, 3 figures

PY - 2022/10/1

Y1 - 2022/10/1

N2 - 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.

AB - 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.

KW - Astrophysics - Earth and Planetary Astrophysics

U2 - 10.48550/arXiv.2207.05874

DO - 10.48550/arXiv.2207.05874

M3 - Article

SN - 0029-7704

VL - 142

SP - 220

EP - 229

JO - Observatory

JF - Observatory

ER -

VLT, GROND and Danish Telescope observations of transits in the TRAPPIST-1 system

Abstract

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