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Two super-Earths at...
Two super-Earths at the edge of the habitable zone of the nearby M dwarf TOI-2095
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- Murgas, F. (author)
- University of La Laguna (ULL),Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Castro-González, A. (author)
- CSIC Centro de Astrobiologia (INTA),Centro de Astrobiologia (CAB)
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- Pallé, E. (author)
- University of La Laguna (ULL),Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Pozuelos, F. J. (author)
- CSIC Instituto de Astrofísica de Andalucía (IAA),Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)
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- Millholland, S. (author)
- Massachusetts Institute of Technology,Massachusetts Institute of Technology (MIT),University of Arizona
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- Foo, O. (author)
- Massachusetts Institute of Technology,Massachusetts Institute of Technology (MIT)
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- Korth, J. (author)
- Lund University,Lunds universitet,Astrofysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Astrophysics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
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- Marfil, E. (author)
- University of Hamburg,University of La Laguna (ULL),Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna,Universität Hamburg
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- Amado, P. J. (author)
- CSIC Instituto de Astrofísica de Andalucía (IAA),Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)
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- Caballero, J. A. (author)
- CSIC Centro de Astrobiologia (INTA),Centro de Astrobiologia (CAB)
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- Christiansen, J. L. (author)
- National Aeronautics and Space Administration (NASA)
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- Ciardi, D. R. (author)
- National Aeronautics and Space Administration (NASA)
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- Collins, K. A. (author)
- Harvard–Smithsonian Center for Astrophysics,Harvard-Smithsonian Center for Astrophysics
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Di Sora, M. (author)
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- Fukui, A. (author)
- University of Tokyo, Japan,Instituto de Astrofísica de Canarias
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- Gan, T. (author)
- Tsinghua University
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- Gonzales, E. J. (author)
- University of California, Santa Cruz
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- Henning, Th (author)
- Max Planck Institute for Astronomy,Max Planck Gesellschaft zur Förderung der Wissenschaften e.V. (MPG),Max Planck Society for the Advancement of Science (MPG)
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- Herrero, E. (author)
- CSIC Institut de Ciènces de l’Espai (IEEC),Institut d'Estudis Espacials de Catalunya (IEEC),Institute of Space Studies of Catalonia (IEEC)
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Isopi, G. (author)
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- Jenkins, J. M. (author)
- NASA Ames Research Center,Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Lillo-Box, J. (author)
- CSIC Centro de Astrobiologia (INTA),Centro de Astrobiologia (CAB)
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- Lodieu, N. (author)
- Instituto de Astrofísica de Canarias,University of La Laguna (ULL),Universidad de la Laguna,University of La Laguna
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- Luque, R. (author)
- University of Chicago
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Mallia, F. (author)
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- Morales, J. C. (author)
- CSIC Institut de Ciènces de l’Espai (IEEC),CSIC Institute of Space Sciences (ICE),Institut d'Estudis Espacials de Catalunya (IEEC),Institute of Space Studies of Catalonia (IEEC),Institut de Ciències de l'Espai (ICE) - CSIC,Institute of Space Sciences (ICE) - CSIC
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- Morello, Giuseppe, 1989 (author)
- Chalmers University of Technology,Instituto de Astrofísica de Canarias,Chalmers tekniska högskola
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- Narita, N. (author)
- University of Tokyo, Japan,Instituto de Astrofísica de Canarias,National Institutes of Natural Sciences (NINS),Princeton University
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- Orell-Miquel, J. (author)
- University of La Laguna (ULL),Instituto de Astrofísica de Canarias
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- Parviainen, H. (author)
- University of La Laguna (ULL),Instituto de Astrofísica de Canarias,Universidad de la Laguna,University of La Laguna
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- Pérez-Torres, M. (author)
- CSIC Instituto de Astrofísica de Andalucía (IAA),Instituto de Astrofisica de Andalucía (IAA),Institute of Astrophysics of Andalusia (IAA)
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- Quirrenbach, A. (author)
- Heidelberg University,Ruprecht-Karls-Universität Heidelberg
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- Reiners, A. (author)
- University of Göttingen,Georg-August-Universität Göttingen
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- Ribas, I. (author)
- CSIC Institute of Space Sciences (ICE),CSIC Institut de Ciènces de l’Espai (IEEC),Institut d'Estudis Espacials de Catalunya (IEEC),Institute of Space Studies of Catalonia (IEEC),Institut de Ciències de l'Espai (ICE) - CSIC,Institute of Space Sciences (ICE) - CSIC
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- Safonov, B. S. (author)
- Lomonosov Moscow State University,M. V. Lomonosov Moscow State University,Massachusetts Institute of Technology (MIT)
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- Seager, S. (author)
- Massachusetts Institute of Technology,Katholieke Universiteit Leuven
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- Schwarz, R. P. (author)
- Harvard–Smithsonian Center for Astrophysics,Harvard-Smithsonian Center for Astrophysics
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- Schweitzer, A. (author)
- University of Hamburg,Universität Hamburg
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- Schlecker, M. (author)
- University of Arizona
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- Strakhov, I. A. (author)
- Lomonosov Moscow State University,M. V. Lomonosov Moscow State University
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- Vanaverbeke, S. (author)
- AstroLAB IRIS,Catholic University of Leuven
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- Watanabe, N. (author)
- University of Tokyo, Japan
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- Winn, J. N. (author)
- Princeton University
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- Zechmeister, M. (author)
- University of Göttingen,Georg-August-Universität Göttingen
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(creator_code:org_t)
- 2023
- 2023
- English.
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In: Astronomy and Astrophysics. - 0004-6361 .- 1432-0746. ; 677
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Abstract
Subject headings
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- The main scientific goal of TESS is to find planets smaller than Neptune around stars that are bright enough to allow for further characterization studies. Given our current instrumentation and detection biases, M dwarfs are prime targets in the search for small planets that are in (or near) the habitable zone of their host star. In this work, we use photometric observations and CARMENES radial velocity (RV) measurements to validate a pair of transiting planet candidates found by TESS. The data were fitted simultaneously, using a Bayesian Markov chain Monte Carlo (MCMC) procedure and taking into account the stellar variability present in the photometric and spectroscopic time series. We confirm the planetary origin of the two transiting candidates orbiting around TOI-2095 (LSPM J1902+7525). The star is a nearby M dwarf (d = 41.90 ± 0.03 pc, Teff = 3759 ± 87 K, V = 12.6 mag), with a stellar mass and radius of M∗ = 0.44 ± 0.02 M· and R∗ = 0.44 ± 0.02 R·, respectively. The planetary system is composed of two transiting planets: TOI-2095b, with an orbital period of Pb = 17.66484 ± (7 A - 10- 5) days, and TOI-2095c, with Pc = 28.17232 ± (14 A - 10- 5) days. Both planets have similar sizes with Rb = 1.25 ± 0.07 R· and Rc = 1.33 ± 0.08 R· for planet b and planet c, respectively. Although we did not detect the induced RV variations of any planet with significance, our CARMENES data allow us to set stringent upper limits on the masses of these objects. We find Mb < 4.1 M· for the inner and Mc < 7.4 M· for the outer planet (95% confidence level). These two planets present equilibrium temperatures in the range of 300 350 K and are close to the inner edge of the habitable zone of their star.
Subject headings
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- Planets and satellites: detection
- Techniques: photometric
- Techniques: radial velocities
- Techniques: photometric
Publication and Content Type
- art (subject category)
- ref (subject category)
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To the university's database
- By the author/editor
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Murgas, F.
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Castro-González, ...
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Pallé, E.
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Pozuelos, F. J.
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Millholland, S.
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Foo, O.
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show more...
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Korth, J.
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Marfil, E.
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Amado, P. J.
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Caballero, J. A.
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Christiansen, J. ...
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Ciardi, D. R.
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Collins, K. A.
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Di Sora, M.
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Fukui, A.
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Gan, T.
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Gonzales, E. J.
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Henning, Th
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Herrero, E.
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Isopi, G.
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Jenkins, J. M.
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Lillo-Box, J.
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Lodieu, N.
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Luque, R.
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Mallia, F.
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Morales, J. C.
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Morello, Giusepp ...
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Narita, N.
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Orell-Miquel, J.
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Parviainen, H.
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Pérez-Torres, M.
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Quirrenbach, A.
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Reiners, A.
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Ribas, I.
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Safonov, B. S.
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Seager, S.
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Schwarz, R. P.
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Schweitzer, A.
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Schlecker, M.
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Strakhov, I. A.
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Vanaverbeke, S.
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Watanabe, N.
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Winn, J. N.
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Zechmeister, M.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Astronomy Astrop ...
- Articles in the publication
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Astronomy and As ...
- By the university
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Lund University
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Chalmers University of Technology