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NGTS discovery of a highly inflated Saturn-mass planet and a highly irradiated hot Jupiter. NGTS-26 b and NGTS-27 b
Bouchy, F. and Gillen, E. and Turner, O.D. and Gill, S. and Nielsen, L. D. and Lendl, M. and Vines, J. I. and Alves, D. R. and Anderson, D. R. and Armstrong, D. J. and Bayliss, D. and Jenkins, J. S. and Acton, J. S. and Belardi, C. and Bryant, E. M. and Burleigh, M. R. and Casewell, S. L. and Costes, J. C. and Chaushev, A. and Cooke, B. F. and Eigmüller, Philipp and Erikson, A. and Günther, M. N. and Goad, M. R. and Grieves, N. and McCormac, J. J. and Moyano, M. and Raynard, L. and Smith, A. M. S. and Tilbrook, R. H. and Udry, S. and Watson, C. A. and West, R. G. and Wheatley, P. J.
(2024)
NGTS discovery of a highly inflated Saturn-mass planet and a highly irradiated hot Jupiter. NGTS-26 b and NGTS-27 b.
Astronomy & Astrophysics, 684, A201.
EDP Sciences.
doi: 10.1051/0004-6361/202347162.
ISSN 0004-6361.
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Official URL: https://www.aanda.org/articles/aa/full_html/2024/04/aa47162-23/aa47162-23.html AbstractWe report the discovery of two new transiting giant exoplanets NGTS-26 b and NGTS-27 b by the Next Generation Transit Survey (NGTS). NGTS-26 b orbits around a G6-type main sequence star every 4.52 days. It has a mass of 0.29-0.06+0.07 MJup and a radius of 1.33-0.05+0.06 RJup making it a Saturn-mass planet with a highly inflated radius. NGTS-27 b orbits around a slightly evolved G3-type star every 3.37 days. It has a mass of 0.59-0.07+0.10 MJup and a radius of 1.40±0.04 RJup, making it a relatively standard hot Jupiter. The transits of these two planetary systems were re-observed and confirmed in photometry by the SAAO 1.0-m telescope, 1.2-m Euler Swiss telescope as well as the TESS spacecraft, and their masses were derived spectroscopically by the CORALIE, FEROS and HARPS spectrographs. Both giant exoplanets are highly irradiated by their host stars and present an anomalously inflated radius, especially NGTS-26 b which is one of the largest objects among peers of similar mass. | Item URL in elib: | https://elib.dlr.de/204983/ |
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| Document Type: | Article |
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| Title: | NGTS discovery of a highly inflated Saturn-mass planet and a highly irradiated hot Jupiter. NGTS-26 b and NGTS-27 b |
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| Authors: | | Authors | Institution or Email of Authors | Author's ORCID iD | ORCID Put Code |
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| Bouchy, F. | Observatoire de Genève, Université de Genève, Chemin Pegasi, 51, 1290, Versoix, Switzerland | UNSPECIFIED | UNSPECIFIED | | Gillen, E. | Astronomy Unit, Queen Mary University of London, Mile End Road, London, E1 4NS, UK; Astrophysics Group, Cavendish Laboratory, J.J. Thomson Avenue, Cambridge, CB3 0HE, UK | UNSPECIFIED | UNSPECIFIED | | Turner, O.D. | Observatoire de Genève, Université de Genève, Chemin Pegasi 51, 1290, Sauverny, Switzerland | UNSPECIFIED | UNSPECIFIED | | Gill, S. | Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK | UNSPECIFIED | UNSPECIFIED | | Nielsen, L. D. | Sub-department of Astrophysics, Department of Physics, University of Oxford, Oxford OX1 3RH, UK; Geneva Observatory, University of Geneva, Chemin Pegasi 51, CH-1290 Versoix, Switzerland | UNSPECIFIED | UNSPECIFIED | | Lendl, M. | Observatoire de Genève, Université de Genève, Chemin Pegasi, 51, 1290, Versoix, Switzerland | UNSPECIFIED | UNSPECIFIED | | Vines, J. I. | Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago, Chile | UNSPECIFIED | UNSPECIFIED | | Alves, D. R. | Departamento de Astronomia, Universidad de Chile, Casilla 36-D, Santiago, Chile | UNSPECIFIED | UNSPECIFIED | | Anderson, D. R. | Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK | UNSPECIFIED | UNSPECIFIED | | Armstrong, D. J. | Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK | UNSPECIFIED | UNSPECIFIED | | Bayliss, D. | Observatoire de l Universit e de Geneve, 51 chemin des Maillettes, 1290 Sauverny, Switzerland | UNSPECIFIED | UNSPECIFIED | | Jenkins, J. S. | Departamento de Astronomía, Universidad de Chile, Camino ElObservatorio 1515, Las Condes, Santiago, Chile; Centro de Astrofísica y Tecnologías Afines (CATA), Casilla 36-D,Santiago, Chile | UNSPECIFIED | UNSPECIFIED | | Acton, J. S. | School of Physics and Astronomy, University of Leicester, Leicester, LE1 7RH, UK | UNSPECIFIED | UNSPECIFIED | | Belardi, C. | Department of Physics and Astronomy, University of Leicester, University Road, Leicester, LE1 7RH, UK | UNSPECIFIED | UNSPECIFIED | | Bryant, E. M. | Mullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking, Surrey RH5 6NT, UK | UNSPECIFIED | UNSPECIFIED | | Burleigh, M. R. | School of Physics and Astronomy, University of Leicester, Leicester, LE1 7RH, UK | UNSPECIFIED | UNSPECIFIED | | Casewell, S. L. | School of Physics and Astronomy, University of Leicester, Leicester, LE1 7RH, UK | UNSPECIFIED | UNSPECIFIED | | Costes, J. C. | Aix Marseille Univ, CNRS, CNES, LAM, 13388, Marseille, France | UNSPECIFIED | UNSPECIFIED | | Chaushev, A. | Center for Astronomy and Astrophysics, TU Berlin, Hardenbergstr. 36, 10623, Berlin, Germany; Department of Physics and Astronomy, University of California, Irvine, 4129 Frederick Reines Hall, Irvine, CA, 92697, USA | UNSPECIFIED | UNSPECIFIED | | Cooke, B. F. | Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK | UNSPECIFIED | UNSPECIFIED | | Eigmüller, Philipp | UNSPECIFIED | https://orcid.org/0000-0003-4096-0594 | UNSPECIFIED | | Erikson, A. | UNSPECIFIED | UNSPECIFIED | UNSPECIFIED | | Günther, M. N. | European Space Agency (ESA), European Space Research and Technology Centre (ESTEC), Keplerlaan 1, 2201 AZ, Noordwijk, The Netherlands | UNSPECIFIED | UNSPECIFIED | | Goad, M. R. | School of Physics and Astronomy, University of Leicester, Leicester, LE1 7RH, UK | UNSPECIFIED | UNSPECIFIED | | Grieves, N. | Observatoire de Genève, Université de Genève, Chemin Pegasi, 51, 1290, Versoix, Switzerland | UNSPECIFIED | UNSPECIFIED | | McCormac, J. J. | Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; Las Cumbres Observatory, 6740 Cortona Drive, Suite 102, Goleta, CA 93117, USA | UNSPECIFIED | UNSPECIFIED | | Moyano, M. | Instituto de Astronomía, Universidad Católica del Norte, Angamos 0610, 1270709, Antofagasta, Chile | UNSPECIFIED | UNSPECIFIED | | Raynard, L. | Department of Physics and Astronomy, University of Leicester, University Road, Leicester, LE1 7RH, UK | UNSPECIFIED | UNSPECIFIED | | Smith, A. M. S. | UNSPECIFIED | https://orcid.org/0000-0002-2386-4341 | UNSPECIFIED | | Tilbrook, R. H. | Department of Physics and Astronomy, University of Leicester, University Road, Leicester, LE1 7RH, UK | UNSPECIFIED | UNSPECIFIED | | Udry, S. | Observatoire de Genève, Sauverny, Switzerland | UNSPECIFIED | UNSPECIFIED | | Watson, C. A. | Astrophysics Research Centre, Queen's University Belfast, Belfast BT7 1NN, UK | UNSPECIFIED | UNSPECIFIED | | West, R. G. | Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL | UNSPECIFIED | UNSPECIFIED | | Wheatley, P. J. | Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; Las Cumbres Observatory, 6740 Cortona Drive, Suite 102, Goleta, CA 93117, USA 0000-0003-1452-2240 | UNSPECIFIED | UNSPECIFIED |
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| Date: | 2024 |
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| Journal or Publication Title: | Astronomy & Astrophysics |
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| Refereed publication: | Yes |
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| Open Access: | Yes |
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| Gold Open Access: | No |
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| In SCOPUS: | Yes |
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| In ISI Web of Science: | Yes |
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| Volume: | 684 |
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| DOI: | 10.1051/0004-6361/202347162 |
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| Page Range: | A201 |
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| Publisher: | EDP Sciences |
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| ISSN: | 0004-6361 |
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| Status: | Published |
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| Keywords: | techniques: photometric, planets and satellites: detection, planets and satellites: individual: NGTS-26 b, planets and satellites: individual: NGTS-27 b, planetary systems |
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| HGF - Research field: | Aeronautics, Space and Transport |
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| HGF - Program: | Space |
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| HGF - Program Themes: | Space Exploration |
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| DLR - Research area: | Raumfahrt |
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| DLR - Program: | R EW - Space Exploration |
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| DLR - Research theme (Project): | R - Project PLATO - PMC and Science, R - CHEOPS Science |
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Location: |
Berlin-Adlershof
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| Institutes and Institutions: | Institute of Planetary Research > Extrasolar Planets and Atmospheres |
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| Deposited By: |
Smith, Dr Alexis M S
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| Deposited On: | 26 Jun 2024 13:50 |
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| Last Modified: | 01 Jul 2024 12:21 |
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