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TOI-1749: an M dwarf with a Trio of Planets including a Near-resonant Pair

Fukui, A. and Korth, J. and Livingston, J. and Twicken, J.D. and Zapatero Osorio, M. R. and Jenkins, J.M. and Mori, M. and Murgas, F. and Ogihara, M. and Narita, N. and Palle, E. and Stassun, Keivan G. and Nowak, G. and Ciardi, David R. and Alvarez-Hernandez, L. and Bejar, V. and Casasayas-Barris, N. and Crouzet, N. and De Leon, J. and Esparza-Borges, E. and Hidalgo, D. and Isogai, K. and Kawauchi, K. and Klagyivik, Peter and Kodama, T. and Kurita, S. and Kusakabe, N. and Luque, R. and Madrigal-Aguado, A. and Rodriguez Montanes, P. and Morello, G and Nishiumi, T. and Orrel-Miquel, J. and Oshagh, M. and Parviainen, H and Sánchez-Benavente, M. and Stangret, M. and Terada, Y. and Watanabe, N. and Chen, G. and Tamura, M. and Bosch-Cabot, P. and Bowen, M. and Eastridge, K. and Freour, L. and Gonzales, E. and Guerra, P. and Jundiyeh, Y. and Kim, T. K. and Kroer, L. V. and Levine, A. M. and Morgan, E. H. and Reefe, M. and Tronsgaard, R. and Wedderkopp, C. K. and Wittrock, J. and Collins, K. A. and Hesse, K. and Latham, D W and Ricker, G. and Seager, S. and Vanderspek, R. and Winn, J. N. and Bachelet, E. and Bowman, M. and McCully, C. and Daily, M. and Harbeck, D. and Volgenau, N. H. (2021) TOI-1749: an M dwarf with a Trio of Planets including a Near-resonant Pair. Astronomical Journal, 162 (4), p. 167. American Astronomical Society. doi: 10.3847/1538-3881. ISSN 0004-6256.

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Official URL: https://iopscience.iop.org/article/10.3847/1538-3881/ac13a5

Abstract

We report the discovery of one super-Earth- (TOI-1749b) and two sub-Neptune-sized planets (TOI-1749c and TOI-1749d) transiting an early M dwarf at a distance of 100 pc, which were first identified as planetary candidates using data from the TESS photometric survey. We have followed up this system from the ground by means of multiband transit photometry, adaptive optics imaging, and low-resolution spectroscopy, from which we have validated the planetary nature of the candidates. We find that TOI-1749b, c, and d have orbital periods of 2.39, 4.49, and 9.05 days, and radii of 1.4, 2.1, and 2.5 RE, respectively. We also place 95% confidence upper limits on the masses of 57, 14, and 15 ME for TOI-1749b, c, and d, respectively, from transit timing variations. The periods, sizes, and tentative masses of these planets are in line with a scenario in which all three planets initially had a hydrogen envelope on top of a rocky core, and only the envelope of the innermost planet has been stripped away by photoevaporation and/or core-powered mass-loss mechanisms. These planets are similar to other planetary trios found around M dwarfs, such as TOI-175b,c,d and TOI-270b,c,d, in the sense that the outer pair has a period ratio within 1% of 2. Such a characteristic orbital configuration, in which an additional planet is located interior to a near 2:1 period-ratio pair, is relatively rare around FGK dwarfs.

Item URL in elib:https://elib.dlr.de/146144/
Document Type:Article
Title:TOI-1749: an M dwarf with a Trio of Planets including a Near-resonant Pair
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Fukui, A.Okayama Astrophysical Observatory, National Astronomical Observatory of Japan, Asakuchi, 719-0232 Okayama,JapanUNSPECIFIED
Korth, J.Rheinisches Institut für Umweltforschung an der Universitaet zu Koeln, Aachener Strasse 209, D-50931 Koeln, GermanyUNSPECIFIED
Livingston, J.Department of Astronomy, The University of Tokyo, 7-3-1 Bunkyo-ku, Tokyo 113-0033, JapanUNSPECIFIED
Twicken, J.D.NASA Ames Research Center, Moffett Field, CA 94035, USA; SETI Institute, Mountain View, CA 94043, USAUNSPECIFIED
Zapatero Osorio, M. R.Centro de Astrobiología (CSIC-INTA), Crta. Ajalvir km 4, 28850Torrejón de Ardoz, Madrid, SpainUNSPECIFIED
Jenkins, J.M.NASA Ames Research Center, Moffett Field, CA, 94035, USAUNSPECIFIED
Mori, M.The University of Tokyo, 7-3-1 Hongo, Bunkyō, Tokyo, 113-8654, JapanUNSPECIFIED
Murgas, F.Instituto de Astrofisica de Canarias (IAC), 38205, La Laguna, Tenerife, Spain; Departamento de Astrofisica, Universidad de La Laguna, 38206, La Laguna, Tenerife, SpainUNSPECIFIED
Ogihara, M.National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, 181-8588 Tokyo, Japan; Earth-Life Science Institute, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8550, JapanUNSPECIFIED
Narita, N.Astrobiology Center and National Astronomical Observatory of Japan, NINS, 2-21-1 Osawa, Mitaka, Tokyo, 181-8588, Japan; Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8551, Japan; InstitutUNSPECIFIED
Palle, E.Instituto de Astrofisica de Canarias (IAC), 38205, La Laguna, Tenerife, Spain );; Departamento de Astrofisica, Universidad de La Laguna (ULL), 38206, La Laguna, Tenerife, SpainUNSPECIFIED
Stassun, Keivan G.Vanderbilt University, Department of Physics & Astronomy, 6301 Stevenson Center Lane, Nashville, TN 37235, US ; Fisk University, Department of Physics, 1000 17th Avenue North, Nashville, TN 37208, US 0000-0002-3481-9052UNSPECIFIED
Nowak, G.Instituto de Astrofisica de Canarias, C/ Via Lactea s/n, 38205, La Laguna, Tenerife, Spain; Departamento de Astrofisica, Universidad de La Laguna, 38206, Tenerife, SpainUNSPECIFIED
Ciardi, David R.Caltech/IPAC-NASA Exoplanet Science Institute, Pasadena, CA, USAUNSPECIFIED
Alvarez-Hernandez, L.Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, SpainUNSPECIFIED
Bejar, V.Instituto de Astrofísica de Canarias, 38205 La Laguna, Tenerife, Spain | Departamento de Astrofisica, Universidad de La Laguna, 38206 La Laguna, SpainUNSPECIFIED
Casasayas-Barris, N.Instituto de Astrofisica de Canarias (IAC), 38205, La Laguna, Tenerife, Spain );; Departamento de Astrofisica, Universidad de La Laguna (ULL), 38206, La Laguna, Tenerife, SpainUNSPECIFIED
Crouzet, N.Science Support Office, Directorate of Science, European Space Research and Technology Centre (ESA/ESTEC), Keplerlaan 1,2201 AZ Noordwijk, The NetherlandsUNSPECIFIED
De Leon, J.Department of Astronomy, Graduate School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, JapanUNSPECIFIED
Esparza-Borges, E.Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, SpainUNSPECIFIED
Hidalgo, D.Instituto de Astrofisica de Canarias (IAC), 38205, La Laguna, Tenerife, Spain; Departamento de Astrofisica, Universidad de La Laguna, 38206, La Laguna, Tenerife, SpainUNSPECIFIED
Isogai, K.Okayama Observatory, Kyoto University, 3037-5 Honjo, Kamogata-cho, Asakuchi, Okayama 719-0232, JapanUNSPECIFIED
Kawauchi, K.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku,Tokyo 113-0033, JapanUNSPECIFIED
Klagyivik, PeterUNSPECIFIEDhttps://orcid.org/0000-0003-0700-6176
Kodama, T.Komaba Institute for Science, The University of Tokyo, 3-8-1 Komaba, Meguro, Tokyo 153-8902, JapanUNSPECIFIED
Kurita, S.Department of Earth and Planetary Science, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, JapanUNSPECIFIED
Kusakabe, N.National Astronomical Observatory of Japan, NINS, 2-21-1 Osawa, Mitaka, Tokyo, 181-8588, Japan; Astrobiology Center, NINS, 2-21-1 Osawa, Mitaka, Tokyo, 181-8588, JapanUNSPECIFIED
Luque, R.Instituto de Astrofisica de Canarias (IAC), 38205, La Laguna, Tenerife, Spain );; Departamento de Astrofisica, Universidad de La Laguna (ULL), 38206, La Laguna, Tenerife, SpainUNSPECIFIED
Madrigal-Aguado, A.Instituto de Astrofisica de Canarias (IAC), 38205, La Laguna, Tenerife, Spain );; Departamento de Astrofisica, Universidad de La Laguna (ULL), 38206, La Laguna, Tenerife, SpainUNSPECIFIED
Rodriguez Montanes, P.Instituto de Astrofísica de Canarias, Vía Láctea s/n, E-38205 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, SpainUNSPECIFIED
Morello, GInstituto de Astrofísica de Canarias, Vía Láctea s/n, E-38205 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, SpainUNSPECIFIED
Nishiumi, T.Department of Astronomical Science, The Graduated University for Advanced Studies, SOKENDAI, 2-21-1, Osawa, Mitaka,Tokyo 181-8588 Japan; National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, JapanUNSPECIFIED
Orrel-Miquel, J.Instituto de Astrofísica de Canarias, Vía Láctea s/n, E-38205 La Laguna, Tenerife, Spain; Departamento de Astrofísica, Universidad de La Laguna, E-38206 La Laguna, Tenerife, SpainUNSPECIFIED
Oshagh, M.Instituto de Astrofisica de Canarias (IAC), 38205, La Laguna, Tenerife, Spain; Departamento de Astrofisica, Universidad de La Laguna (ULL), 38206, La Laguna, Tenerife, SpainUNSPECIFIED
Parviainen, HInstituto de Astrofísica de Canarias, La Laguna, Spain; Departamento de Astrofísica, Universidad de La Laguna, SpainUNSPECIFIED
Sánchez-Benavente, M.Instituto de Astrofisica de Canarias (IAC), 38205, La Laguna, Tenerife, Spain; Departamento de Astrofisica, Universidad de La Laguna (ULL), 38206, La Laguna, Tenerife, SpainUNSPECIFIED
Stangret, M.Instituto de Astrofisica de Canarias (IAC), 38205, La Laguna, Tenerife, Spain; Departamento de Astrofisica, Universidad de La Laguna (ULL), 38206, La Laguna, Tenerife, SpainUNSPECIFIED
Terada, Y.Institute of Astronomy and Astrophysics, Academia Sinica, P.O. Box 23-141, Taipei 10617, Taiwan, R.O.C.; Department of Astrophysics, National Taiwan University, Taipei 10617, Taiwan, R.O.C.UNSPECIFIED
Watanabe, N.Department of Astronomical Science, The Graduated University for Advanced Studies, SOKENDAI, 2-21-1, Osawa, Mitaka,Tokyo 181-8588 Japan; Astrobiology Center of NINS, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan; National Astronomical Observatory of Japan,UNSPECIFIED
Chen, G.Key Laboratory of Planetary Sciences, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, People's Republic of ChinaUNSPECIFIED
Tamura, M.Department of Astronomy, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan; Astrobiology Center, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan; National Astronomical Observatory of Japan, 2-21-1 Osawa, MitakaUNSPECIFIED
Bosch-Cabot, P.Observatori Astronòmic Albanyà, Camí de Bassegoda S/N, Albanyà E-17733, Girona, SpainUNSPECIFIED
Bowen, M.Department of Physics and Astronomy, George Mason University, Fairfax, VA, USAUNSPECIFIED
Eastridge, K.Department of Physics and Astronomy, George Mason University, Fairfax, VA, USAUNSPECIFIED
Freour, L.DTU Space, National Space Institute, Technical University of Denmark, Elektrovej 328, DK-2800 Kgs. Lyngby, DenmarkUNSPECIFIED
Gonzales, E.National Science Foundation Graduate Research Fellow.; University of California, Santa Cruz, 1156 High Street, Santa Cruz, CA 95064, USAUNSPECIFIED
Guerra, P.Observatori Astronòmic Albanyà, Camí de Bassegoda S/N, Albanyà E-17733, Girona, SpainUNSPECIFIED
Jundiyeh, Y.DTU Space, National Space Institute, Technical University of Denmark, Elektrovej 328, DK-2800 Kgs. Lyngby, DenmarkUNSPECIFIED
Kim, T. K.Department of Physics and Astronomy, George Mason University, Fairfax, VA, USA; Thomas Jefferson High School for Science and Technology, 6560 Braddock Road, Alexandria, VA 22312, USAUNSPECIFIED
Kroer, L. V.DTU Space, National Space Institute, Technical University of Denmark, Elektrovej 328, DK-2800 Kgs. Lyngby, DenmarkUNSPECIFIED
Levine, A. M.Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USAUNSPECIFIED
Morgan, E. H.Department of Physics and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USAUNSPECIFIED
Reefe, M.Department of Physics and Astronomy, George Mason University, Fairfax, VA, USAUNSPECIFIED
Tronsgaard, R.DTU Space, National Space Institute, Technical University of Denmark, Elektrovej 328, DK-2800 Kgs. Lyngby, DenmarkUNSPECIFIED
Wedderkopp, C. K.DTU Space, National Space Institute, Technical University of Denmark, Elektrovej 328, DK-2800 Kgs. Lyngby, DenmarkUNSPECIFIED
Wittrock, J.Department of Physics and Astronomy, George Mason University, Fairfax, VA, USAUNSPECIFIED
Collins, K. A.Center for Astrophysics | Harvard & Smithsonian, 60 Garden Street, Cambridge, MA 02138, USAUNSPECIFIED
Hesse, K.Department of Astronomy, Wesleyan University, Middletown, CT 06459, USAUNSPECIFIED
Latham, D WHarvard-Smithonian Center for Astrophysics, CambridgeUNSPECIFIED
Ricker, G.Department of Physics and Kavli Institute for Astrophysics and Space Research, MIT, Cambridge, MA, 02139, USAUNSPECIFIED
Seager, S.NSF Graduate Research Fellow, Steward Observatory, University of Arizona, Tucson, AZ, 85721, USA; Department of Earth, Atmospheric and Planetary Sciences, MIT, Cambridge, MA, 02139, USA; Department of Aeronautics and Astronautics, MIT, Cambridge, MA, 0213UNSPECIFIED
Vanderspek, R.Department of Physics and Kavli Institute for Astrophysics and Space Research, MIT, Cambridge, MA, 02139, USAUNSPECIFIED
Winn, J. N.Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ, 08544, USAUNSPECIFIED
Bachelet, E.Las Cumbres Observatory, 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USAUNSPECIFIED
Bowman, M.Las Cumbres Observatory, 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USAUNSPECIFIED
McCully, C.Las Cumbres Observatory, 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USAUNSPECIFIED
Daily, M.Las Cumbres Observatory, 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USAUNSPECIFIED
Harbeck, D.Las Cumbres Observatory, 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USAUNSPECIFIED
Volgenau, N. H.Las Cumbres Observatory, 6740 Cortona Drive, Suite 102, Goleta, CA 93117-5575, USAUNSPECIFIED
Date:2021
Journal or Publication Title:Astronomical Journal
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:162
DOI:10.3847/1538-3881
Page Range:p. 167
Publisher:American Astronomical Society
ISSN:0004-6256
Status:Published
Keywords:exoplanets, TESS
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - QS-Project_04 Big-Data-Plattform
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Extrasolar Planets and Atmospheres
Deposited By: Cabrera Perez, Juan
Deposited On:24 Nov 2021 14:22
Last Modified:24 Nov 2021 14:22

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