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A super-Earth and two sub-Neptunes transiting the nearby and quiet M dwarf TOI-270
| Indexado |
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| DOI | 10.1038/S41550-019-0845-5 | ||||
| Año | 2019 | ||||
| Tipo | artículo de investigación |
Citas Totales
Autores Afiliación Chile
Instituciones Chile
% Participación
Internacional
Autores
Afiliación Extranjera
Instituciones
Extranjeras
Abstract
One of the primary goals of exoplanetary science is to detect small, temperate planets passing (transiting) in front of bright and quiet host stars. This enables the characterization of planetary sizes, orbits, bulk compositions, atmospheres and formation histories. These studies are facilitated by small and cool M dwarf host stars. Here we report the Transiting Exoplanet Survey Satellite (TESS)(1) discovery of three small planets transiting one of the nearest and brightest M dwarf hosts observed to date, TOI-270 (TIC 259377017, with K-magnitude 8.3, and 22.5 parsecs away from Earth). The M3V-type star is transited by the super-Earth-sized planet TOI-270 b (1.247(-0.083)(+0.089) R-circle plus) and the sub-Neptune-sized planets TOI-270 c (2.42 +/- 0.13 R-circle plus) and TOI-270 d (2.13 +/- 0.12 R-circle plus). The planets orbit close to a mean-motion resonant chain, with periods (3.36 days, 5.66 days and 11.38 days, respectively) near ratios of small integers (5:3 and 2:1). TOI-270 is a prime target for future studies because (1) its near-resonance allows the detection of transit timing variations, enabling precise mass measurements and dynamical studies; (2) its brightness enables independent radial-velocity mass measurements; (3) the outer planets are ideal for atmospheric characterization via transmission spectroscopy; and (4) the quietness of the star enables future searches for habitable zone planets. Altogether, very few systems with small, temperate exoplanets are as suitable for such complementary and detailed characterization as TOI-270.
| Ord. | Autor | Género | Institución - País |
|---|---|---|---|
| 1 | Gunther, Maximilian N. | Hombre |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 2 | Pozuelos, F. | Hombre |
Univ Liege - Bélgica
Universite de Liege - Bélgica |
| 3 | Dittmann, Jason A. | Hombre |
MIT - Estados Unidos
Massachusetts Institute of Technology - Estados Unidos |
| 4 | Dragomir, D. | Mujer |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 5 | Kane, Stephen R. | Hombre |
Univ Calif Riverside - Estados Unidos
University of California, Riverside - Estados Unidos |
| 6 | Daylan, Tansu | - |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 7 | Feinstein, A. D. | Mujer |
UNIV CHICAGO - Estados Unidos
The University of Chicago - Estados Unidos |
| 8 | Huang, Chelsea X. | Mujer |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 9 | Morton, Timothy D. | Hombre |
UNIV FLORIDA - Estados Unidos
University of Florida - Estados Unidos College of Liberal Arts and Sciences - Estados Unidos |
| 10 | Bonfanti, A. | Mujer |
Univ Liege - Bélgica
Universite de Liege - Bélgica |
| 11 | Bouma, L. G. | Hombre |
Princeton Univ - Estados Unidos
Princeton University - Estados Unidos |
| 12 | Burt, Jennifer A. | Mujer |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 13 | Pearce, Logan | Hombre |
Harvard & Smithsonian - Estados Unidos
Vanderbilt Univ - Estados Unidos MIT - Estados Unidos Harvard-Smithsonian Center for Astrophysics - Estados Unidos Vanderbilt University - Estados Unidos |
| 14 | Lissauer, Jack J. | Hombre |
NASA - Estados Unidos
NASA Ames Research Center - Estados Unidos |
| 15 | Matthews, Elisabeth | Mujer |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 16 | Montet, Benjamin T. | Hombre |
UNIV CHICAGO - Estados Unidos
The University of Chicago - Estados Unidos |
| 17 | Vanderburg, Andrew | Hombre |
Univ Texas Austin - Estados Unidos
The University of Texas at Austin - Estados Unidos |
| 18 | Wang, Songhu | - |
YALE UNIV - Estados Unidos
|
| 19 | Winters, Jennifer G. | Mujer |
Harvard & Smithsonian - Estados Unidos
Harvard-Smithsonian Center for Astrophysics - Estados Unidos |
| 20 | Ricker, George R. | Hombre |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 21 | Vanderspek, R. | Hombre |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 22 | Latham, David W. | Hombre |
Harvard & Smithsonian - Estados Unidos
Harvard-Smithsonian Center for Astrophysics - Estados Unidos |
| 23 | Stalport, M. | Hombre |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 24 | Hart, R. | Hombre |
Princeton Univ - Estados Unidos
Princeton University - Estados Unidos |
| 25 | JENKINS, JAMES STEWART | Hombre |
NASA - Estados Unidos
NASA Ames Research Center - Estados Unidos |
| 26 | Armstrong, James | Hombre |
Univ Hawaii - Estados Unidos
University of Hawaii Institute for Astronomy - Estados Unidos University of Hawaiʻi System - Estados Unidos University Hawaii Institute for Astronomy - Estados Unidos |
| 27 | Barkaoui, K. | Hombre |
Univ Liege - Bélgica
Cadi Ayyad Univ - Marruecos Universite de Liege - Bélgica Universite Cadi Ayyad - Marruecos |
| 28 | Batalha, Natalie E. | Mujer |
Univ Calif Santa Cruz - Estados Unidos
University of California, Santa Cruz - Estados Unidos |
| 29 | Bean, Jacob L. | Hombre |
UNIV CHICAGO - Estados Unidos
The University of Chicago - Estados Unidos |
| 30 | Caldwell, Douglas A. | Hombre |
CALTECH - Estados Unidos
National Aeronautics and Space Administration - Estados Unidos |
| 31 | Ciardi, David R. | Hombre |
CALTECH - Estados Unidos
National Aeronautics and Space Administration - Estados Unidos |
| 32 | Pearce, Logan | Hombre |
Harvard & Smithsonian - Estados Unidos
Vanderbilt Univ - Estados Unidos MIT - Estados Unidos Harvard-Smithsonian Center for Astrophysics - Estados Unidos Vanderbilt University - Estados Unidos |
| 33 | Pearce, Logan | Hombre |
Harvard & Smithsonian - Estados Unidos
Vanderbilt Univ - Estados Unidos MIT - Estados Unidos Harvard-Smithsonian Center for Astrophysics - Estados Unidos Vanderbilt University - Estados Unidos |
| 34 | Fausnaugh, M. M. | Hombre |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 35 | Furesz, Gabor | - |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 36 | Gan, Tianjun | - |
Tsinghua Univ - China
Tsinghua University - China |
| 37 | Gillon, Michael | Hombre |
Univ Liege - Bélgica
Universite de Liege - Bélgica |
| 38 | Guerrero, Natalia | Mujer |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 39 | Horne, Keith | Hombre |
Univ St Andrews - Reino Unido
University of St Andrews - Reino Unido |
| 40 | Howell, S. | Hombre |
NASA - Estados Unidos
NASA Ames Research Center - Estados Unidos |
| 41 | Ireland, Michael J. | Hombre |
Australian Natl Univ - Australia
Australian National University - Australia The Australian National University - Australia |
| 42 | Isopi, G. | Hombre |
Campo Catino Astron Observ - Italia
Campo Catino Astronomical Observatory - Italia |
| 43 | Jehin, Emmanuel | Hombre |
Univ Liege - Bélgica
Universite de Liege - Bélgica |
| 44 | Kielkopf, J. | Hombre |
UNIV LOUISVILLE - Estados Unidos
University of Louisville - Estados Unidos |
| 45 | Lepine, Sebastien | Hombre |
Georgia State Univ - Estados Unidos
Georgia State University - Estados Unidos |
| 46 | Mallia, Franco | Hombre |
Campo Catino Astron Observ - Italia
Campo Catino Astronomical Observatory - Italia |
| 47 | Matson, Rachel A. | Mujer |
NASA - Estados Unidos
NASA Ames Research Center - Estados Unidos |
| 48 | Myers, Gordon | Hombre |
AAVSO - Estados Unidos
American Association of Variable Star Observers (AAVSO) - Estados Unidos American Association of Variable Star Observers - Estados Unidos |
| 49 | Palle, Enric | Hombre |
IAC - España
ULL - España Instituto Astrofisico de Canarias - España Universidad de La Laguna - España |
| 50 | Quinn, Samuel N. | Hombre |
Harvard & Smithsonian - Estados Unidos
Harvard-Smithsonian Center for Astrophysics - Estados Unidos |
| 51 | Relles, Howard M. | Hombre |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 52 | Rojas-Ayala, B. | Mujer |
Universidad Nacional Andrés Bello - Chile
|
| 53 | De Leon, Jerome P. | Hombre |
NASA - Estados Unidos
NASA Goddard Space Flight Center - Estados Unidos |
| 54 | Baran, Andrzej S. | Hombre |
South African Astron Observ - República de Sudáfrica
South African Astronomical Observatory - República de Sudáfrica |
| 55 | Shporer, Avi | - |
MIT - Estados Unidos
MIT Kavli Institute for Astrophysics and Space Research - Estados Unidos Massachusetts Institute of Technology - Estados Unidos |
| 56 | Suarez, Juan C. | Hombre |
UNIV GRANADA - España
CSIC - España Universidad de Granada - España Instituto de Astrofísica de Andalucía - CSIC - España CSIC - Instituto de Astrofísica de Andalucía (IAA) - España |
| 57 | Tan, T. -G. | - |
Perth Exoplanet Survey Telescope - Australia
|
| 58 | Ting, Eric B. | Hombre |
NASA - Estados Unidos
NASA Ames Research Center - Estados Unidos |
| 59 | Twicken, Joseph D. | Hombre |
NASA - Estados Unidos
NASA Ames Research Center - Estados Unidos |
| 60 | Waite, Ian | Hombre |
Univ Southern Queensland - Australia
University of Southern Queensland - Australia |
| Fuente |
|---|
| FONDECYT |
| National Science Foundation |
| Ministerio de Ciencia e Innovación |
| Spanish Ministry of Science and Education |
| Ministerio de Ciencia e Innovación |
| STFC |
| Science and Technology Facilities Council |
| National Aeronautics and Space Administration |
| Fondo Nacional de Desarrollo Científico, Tecnológico y de Innovación Tecnológica |
| John Templeton Foundation |
| Spanish Public Funds for Research |
| Heising-Simons Foundation |
| Space Telescope Science Institute |
| European Space Agency |
| Fondo Nacional de Desarrollo CientÃfico, Tecnológico y de Innovación Tecnológica |
| ARC grant for Concerted Research Actions - Wallonia-Brussels Federation |
| National Aeronautics and Space Administration under the Exoplanet Exploration Program |
| Conicyt Pai/Concurso Nacional Insercion En La Academia, Convocatoria |
| Jet Propulsion Laboratory (JPL) - NASA through the Sagan Fellowship Program |
| NASA's Science Mission directorate |
| Belgian Fund for Scientific Research (Fond National de la Recherche Scientifique, FNRS) |
| MIT's Kavli Institute |
| NASA through Hubble Fellowship |
| University of Massachusetts |
| California Institute of Technology |
| Institute of Technology |
| Fond National de la Recherche Scientifique |
| J.C.S. |
| Association of Canadian Universities for Research in Astronomy |
| NASA Exoplanet Archive |
| Wallonia-Brussels Federation |
| NASA Exoplanet Science Institute |
| Applied Scientific Research Fund |
| Conicyt Pai/Concurso Nacional Inserción En La Academia |
| Jet Propulsion Laboratory |
| MIT’s Kavli Institute |
| ARC grant for Concerted Research Actions |
| Spanish public funds |
| Fonds De La Recherche Scientifique - FNRS |
| Association pour la recherche sur le cancer |
| Institut national de la recherche scientifique |
| NASA’s Science Mission |
| Appalachian Regional Commission |
| MIT’s Kavli Institute as Torres |
| Agradecimiento |
|---|
| acknowledges funding support from Conicyt Pai/Concurso Nacional Insercion En La Academia, Convocatoria 2015 79150050 and Fondecyt through grant 11181295. J.C.S. acknowledges funding support from Spanish public funds for research under projects ESP2017-87676-2-2 and RYC-2012-09913 (Ramon y Cajal programme) of the Spanish Ministry of Science and Education. J.A.D. is a 51 Pegasi b Postdoctoral Fellow. |
| We thank B. J. Fulton and E. Petigura for providing their data to recreate the radius gap histogram in Fig. 2. Funding for the TESS mission is provided by NASA’s Science Mission directorate. We acknowledge the use of public TESS Alert data from pipelines at the TESS Science Office and at the TESS Science Processing Operations Center. This research has made use of the Exoplanet Follow-up Observation Program website, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. This paper includes data collected by the TESS mission, which are publicly available from the Mikulski Archive for Space Telescopes (MAST). Resources supporting this work were provided by the NASA High-End Computing (HEC) Program through the NASA Advanced Supercomputing (NAS) Division at Ames Research Center for the production of the SPOC data products. TRAPPIST is funded by the Belgian Fund for Scientific Research (Fond National de la Recherche Scientifique, FNRS) under the grant FRFC 2.5.594.09.F, with the participation of the Swiss National Science Fundation (SNF). The research leading to these results has received funding from the ARC grant for Concerted Research Actions, financed by the Wallonia-Brussels Federation. This work uses observations collected at the European Organisation for Astronomical Research in the Southern Hemisphere under ESO programme 102.C-0503(A). This work makes use of results from the European Space Agency (ESA) space mission Gaia. Gaia data are being processed by the Gaia Data Processing and Analysis Consortium (DPAC). Funding for the DPAC is provided by national institutions, in particular the institutions participating in the Gaia MultiLateral Agreement (MLA). This publication makes use of data products from the Two Micron All Sky Survey, which is a joint project of the University of Massachusetts and the Infrared Processing and Analysis Center/California Institute of Technology, funded by the National Aeronautics and Space Administration and the National Science Foundation. This research has made use of NASA’s Astrophysics Data System Bibliographic Services. This research has made use of the NASA Exoplanet Archive, which is operated by the California Institute of Technology, under contract with the National Aeronautics and Space Administration under the Exoplanet Exploration Program. M.N.G., C.X.H. and J.B. acknowledge support from MIT’s Kavli Institute as Torres postdoctoral fellows. D.D. acknowledges support for this work provided by NASA through Hubble Fellowship grant HST-HF2-51372.001-A, awarded by the Space Telescope Science Institute, which is operated by the Association of Universities for Research in Astronomy for NASA, under contract NAS5-26555. T.D. acknowledges support from MIT’s Kavli Institute as a Kavli postdoctoral fellow. Work by B.T.M. was performed under contract with the Jet Propulsion Laboratory (JPL) funded by NASA through the Sagan Fellowship Program executed by the NASA Exoplanet Science Institute. J.G.W. is supported by a grant from the John Templeton Foundation. The opinions expressed in this publication are those of the authors and do not necessarily reflect the views of the John Templeton Foundation. S.W. thanks the Heising-Simons Foundation for their generous support. M.G. and E.J. are FNRS Senior Research Associates. K.H. acknowledges support from STFC grant ST/R000824/1. B.R.-A. acknowledges funding support from Conicyt Pai/Concurso Nacional Inserción En La Academia, Convocatoria 2015 79150050 and Fondecyt through grant 11181295. J.C.S. acknowledges funding support from Spanish public funds for research under projects ESP2017-87676-2-2 and RYC-2012-09913 (Ramón y Cajal programme) of the Spanish Ministry of Science and Education. J.A.D. is a 51 Pegasi b Postdoctoral Fellow. |
