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An ultra-short-period transiting super-Earth orbiting the M3 dwarf TOI-1685

Dynamical histories of planetary systems, as well as the atmospheric evolution of highly irradiated planets, can be studied by characterizing the ultra-short-period planet population, which the TESS mission is particularly well suited to discover. Here, we report on the follow-up of a transit signal...

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Hauptverfasser: Bluhm, Paz (VerfasserIn) , Pallé, E. (VerfasserIn) , Molaverdikhani, Karan (VerfasserIn) , Kemmer, Jonas (VerfasserIn) , Hatzes, A. P. (VerfasserIn) , Kossakowski, Diana (VerfasserIn) , Stock, Stephan (VerfasserIn) , Caballero, J. A. (VerfasserIn) , Lillo-Box, J. (VerfasserIn) , Béjar, V. J. S. (VerfasserIn) , Soto, M. G. (VerfasserIn) , Amado, P. J. (VerfasserIn) , Brown, P. (VerfasserIn) , Cadieux, C. (VerfasserIn) , Cloutier, R. (VerfasserIn) , Collins, K. A. (VerfasserIn) , Collins, K. I. (VerfasserIn) , Cortés-Contreras, M. (VerfasserIn) , Doyon, R. (VerfasserIn) , Dreizler, S. (VerfasserIn) , Espinoza, N. (VerfasserIn) , Fukui, A. (VerfasserIn) , González-Álvarez, E. (VerfasserIn) , Henning, Thomas (VerfasserIn) , Horne, K. (VerfasserIn) , Jeffers, S. V. (VerfasserIn) , Jenkins, J. M. (VerfasserIn) , Jensen, E. L. N. (VerfasserIn) , Kaminski, Adrian (VerfasserIn) , Kielkopf, J. F. (VerfasserIn) , Kusakabe, N. (VerfasserIn) , Kürster, Martin (VerfasserIn) , Lafrenière, D. (VerfasserIn) , Luque, R. (VerfasserIn) , Murgas, F. (VerfasserIn) , Montes, D. (VerfasserIn) , Morales, J. C. (VerfasserIn) , Narita, N. (VerfasserIn) , Passegger, V. M. (VerfasserIn) , Quirrenbach, Andreas (VerfasserIn) , Schöfer, P. (VerfasserIn) , Reffert, S. (VerfasserIn) , Reiners, A. (VerfasserIn) , Ribas, I. (VerfasserIn) , Ricker, G. R. (VerfasserIn) , Seager, S. (VerfasserIn) , Schweitzer, A. (VerfasserIn) , Schwarz, R. P. (VerfasserIn) , Tamura, M. (VerfasserIn) , Trifonov, Trifon (VerfasserIn) , Vanderspek, R. (VerfasserIn) , Winn, J. (VerfasserIn) , Zechmeister, M. (VerfasserIn) , Osorio, M. R. Zapatero (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: 8 June 2021
In: Astronomy and astrophysics
Year: 2021, Jahrgang: 650, Pages: -17
ISSN:1432-0746
DOI:10.1051/0004-6361/202140688
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1051/0004-6361/202140688
Verlag, lizenzpflichtig, Volltext: https://www.aanda.org/articles/aa/abs/2021/06/aa40688-21/aa40688-21.html
Volltext
Verfasserangaben:P. Bluhm, E. Pallé, K. Molaverdikhani, J. Kemmer, A.P. Hatzes, D. Kossakowski, S. Stock, J.A. Caballero, J. Lillo-Box, V.J.S. Béjar, M.G. Soto, P.J. Amado, P. Brown, C. Cadieux, R. Cloutier, K.A. Collins, K.I. Collins, M. Cortés-Contreras, R. Doyon, S. Dreizler, N. Espinoza, A. Fukui, E. González-Álvarez, Th. Henning, K. Horne, S.V. Jeffers, J.M. Jenkins, E.L.N. Jensen, A. Kaminski, J.F. Kielkopf, N. Kusakabe, M. Kürster, D. Lafrenière, R. Luque, F. Murgas, D. Montes, J.C. Morales, N. Narita, V.M. Passegger, A. Quirrenbach, P. Schöfer, S. Reffert, A. Reiners, I. Ribas, G.R. Ricker, S. Seager, A. Schweitzer, R.P. Schwarz, M. Tamura, T. Trifonov, R. Vanderspek, J. Winn, M. Zechmeister, and M.R. Zapatero Osorio
Beschreibung
Zusammenfassung:Dynamical histories of planetary systems, as well as the atmospheric evolution of highly irradiated planets, can be studied by characterizing the ultra-short-period planet population, which the TESS mission is particularly well suited to discover. Here, we report on the follow-up of a transit signal detected in the TESS sector 19 photometric time series of the M3.0 V star TOI-1685 (2MASS J04342248+4302148). We confirm the planetary nature of the transit signal, which has a period of <i>P<i/><sub>b<sub/> = d, using precise radial velocity measurements taken with the CARMENES spectrograph. From the joint photometry and radial velocity analysis, we estimate the following parameters for TOI-1685 b: a mass of <i>M<i/><sub>b<sub/> = <i>M<i/><sub>⊕<sub/>, a radius of <i>R<i/><sub>b<sub/> = <i>R<i/><sub>⊕<sub/>, which together result in a bulk density of <i>ρ<i/><sub>b<sub/> = g cm<sup>−3<sup/>, and an equilibrium temperature of <i>T<i/><sub>eq<sub/> = K. TOI-1685 b is the least dense ultra-short-period planet around an M dwarf known to date. TOI-1685 b is also one of the hottest transiting super-Earth planets with accurate dynamical mass measurements, which makes it a particularly attractive target for thermal emission spectroscopy. Additionally, we report with moderate evidence an additional non-transiting planet candidate in the system, TOI-1685 [c], which has an orbital period of <i>P<i/><sub>c<sub/> = d.
Beschreibung:Gesehen am 19.07.2022
Beschreibung:Online Resource
ISSN:1432-0746
DOI:10.1051/0004-6361/202140688

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