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NGTS-28Ab: A short period transiting brown dwarf

dc.contributorSchool of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UK
dc.contributorEuropean Space Agency (ESA), European Space Research and Technology Centre (ESTEC), Keplerlaan 1, 2201 AZ Noordwijk, The Netherlands
dc.contributorEuropean Southern Observatory, Karl-Schwarzschildstr. 2, D-85748 Garching bei München, Germany
dc.contributorDépartement d'astronomie, Université de Genéve, 51 chemin Pegasi, 1290 Sauverny, Switzerland
dc.contributorNASA Ames Research Center, Moffett Field, CA 94035, USA
dc.contributorJet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 USA; NASA Exoplanet Science Institute, IPAC, California Institute of Technology, Pasadena, CA 91125 USA
dc.contributorNASA Ames Research Center, Moffett Field, CA 94035, USA; Bay Area Environmental Research Institute, Moffett Field, CA 94035, USA
dc.contributorAstrobiology Research Unit, Université de Liège, Allée du 6 Août 19C, B-4000 Liège, Belgium; Department of Earth, Atmospheric and Planetary Science, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, MA 02139, USA; Instituto de Astrofísica de Canarias (IAC), Calle Vía Láctea s/n, 38200, La Laguna, Tenerife, Spain
dc.contributorDepartamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago, Chile; Centro de Astrofísica y Tecnologías Afines (CATA), Casilla 36-D, Santiago, Chile
dc.contributorCentre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK; Dept. of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
dc.contributorMullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking, Surrey, RH5 6NT, UK
dc.contributorSchool of Physics & Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
dc.contributorParis Region Fellow, Marie Sklodowska-Curie Action; AIM, CEA, CNRS, Université Paris-Saclay, Université de Paris, F-91191 Gif-sur-Yvette, France
dc.contributorInstitute of Planetary Research, German Aerospace Center, Rutherfordstrasse 2, 12489 Berlin, Germany
dc.contributorAstronomy 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
dc.contributorAstrobiology Research Unit, Université de Liège, Allée du 6 Août 19C, B-4000 Liège, Belgium
dc.contributorCavendish Laboratory, JJ Thomson Avenue, Cambridge CB3 0HE, UK
dc.contributorSchool of Earth and Space Exploration, Arizona State University, Tempe, AZ, 85287, USA; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK; Dept. of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK
dc.contributorSTAR Institute, University of Liége, Allée du 6 Août 19c, 4000 Liége, Belgium
dc.contributorNúcleo de Astronomía, Facultad de Ingeniería y Ciencias, Universidad Diego Portales, Av. Ejército 441, Santiago, Chile; Centro de Astrofísica y Tecnologías Afines (CATA), Casilla 36-D, Santiago, Chile
dc.contributorInstituto de Astronomía, Universidad Católica del Norte, Angamos 0610, 1270709, Antofagasta, Chile
dc.contributorDepartment of Physics, ETH Zurich, Wolfgang-Pauli-Strasse 2, CH-8093 Zurich, Switzerland; Cavendish Laboratory, JJ Thomson Avenue, Cambridge CB3 0HE, UK
dc.contributorInstituto de Astrofísica de Andalucía (IAA-CSIC), Glorieta de la Astronomía s/n, 18008 Granada, Spain
dc.contributorArmagh Observatory & Planetarium, College Hill, Armagh, BT61 9DG, UK
dc.contributorSouth African Astronomical Observatory, P.O Box 9, Observatory 7935, Cape Town, South Africa
dc.contributorAstrophysics Research Centre, School of Mathematics and Physics, Queen's University Belfast, BT7 1NN Belfast, UK
dc.contributor.authorHenderson, Beth A.
dc.contributor.authorCasewell, Sarah L.
dc.contributor.authorGoad, Michael R.
dc.contributor.authorActon, Jack S.
dc.contributor.authorGünther, Maximilian N.
dc.contributor.authorNielsen, Louise D.
dc.contributor.authorBurleigh, Matthew R.
dc.contributor.authorBelardi, Claudia
dc.contributor.authorTilbrook, Rosanna H.
dc.contributor.authorTurner, Oliver
dc.contributor.authorHowell, Steve B.
dc.contributor.authorClark, Catherine A.
dc.contributor.authorLittlefield, Colin
dc.contributor.authorBarkaoui, Khalid
dc.contributor.authorAlves, Douglas R.
dc.contributor.authorAnderson, David R.
dc.contributor.authorBayliss, Daniel
dc.contributor.authorBouchy, Francois
dc.contributor.authorBryant, Edward M.
dc.contributor.authorDransfield, George
dc.contributor.authorDucrot, Elsa
dc.contributor.authorEigmüller, Philipp
dc.contributor.authorGill, Samuel
dc.contributor.authorGillen, Edward
dc.contributor.authorGillon, Michaël
dc.contributor.authorHawthorn, Faith
dc.contributor.authorHooton, Matthew J.
dc.contributor.authorJackman, James A. G.
dc.contributor.authorJehin, Emmanuel
dc.contributor.authorJenkins, James S.
dc.contributor.authorKendall, Alicia
dc.contributor.authorLendl, Monika
dc.contributor.authorMcCormac, James
dc.contributor.authorMoyano, Maximiliano
dc.contributor.authorPedersen, Peter Pihlmann
dc.contributor.authorPozuelos, Francisco J.
dc.contributor.authorRamsay, Gavin
dc.contributor.authorSefako, Ramotholo R.
dc.contributor.authorTimmermans, Mathilde
dc.contributor.authorTriaud, Amaury H. M. J.
dc.contributor.authorUdry, Stephane
dc.contributor.authorVines, Jose I.
dc.contributor.authorWatson, Christopher A.
dc.contributor.authorWest, Richard G.
dc.contributor.authorWheatley, Peter J.
dc.contributor.authorZúñiga-Fernández, Sebastián
dc.date.accessioned2024-03-06T14:09:31Z
dc.date.available2024-03-06T14:09:31Z
dc.date.issued2024-02-01T00:00:00Z
dc.identifier.doi10.1093/mnras/stae508
dc.identifier.doi10.48550/arXiv.2402.09943
dc.identifier.other2024arXiv240209943H
dc.identifier.otherastro-ph.EP
dc.identifier.otherastro-ph.SR
dc.identifier.other10.1093/mnras/stae508
dc.identifier.other10.48550/arXiv.2402.09943
dc.identifier.otherarXiv:2402.09943
dc.identifier.other2024MNRAS.tmp..603H
dc.identifier.other2024arXiv240209943H
dc.identifier.other0000-0002-2813-3994
dc.identifier.other-
dc.identifier.other0000-0002-1860-7842
dc.identifier.other0000-0002-8216-2796
dc.identifier.other0000-0003-1464-9276
dc.identifier.other0000-0002-5619-2502
dc.identifier.other0000-0001-7416-7522
dc.identifier.other0000-0001-6023-1335
dc.identifier.other0000-0001-7904-4441
dc.identifier.other0000-0003-2851-3070
dc.identifier.other0000-0003-1462-7739
dc.identifier.other0000-0003-0711-7992
dc.identifier.other0000-0001-9699-1459
dc.identifier.other0000-0001-8722-9710
dc.identifier.other0000-0002-5510-8751
dc.identifier.other0000-0001-6604-5533
dc.identifier.other0000-0003-1452-2240
dc.identifier.urihttp://hdl.handle.net/20.500.14302/2010
dc.description.abstractWe report the discovery of a brown dwarf orbiting a M1 host star. We first identified the brown dwarf within the Next Generation Transit Survey data, with supporting observations found in TESS sectors 11 and 38. We confirmed the discovery with follow-up photometry from the South African Astronomical Observatory, SPECULOOS-S, and TRAPPIST-S, and radial velocity measurements from HARPS, which allowed us to characterise the system. We find an orbital period of ~1.25 d, a mass of $69.0^{+5.3}_{-4.8}$ M<SUB>J</SUB>, close to the Hydrogen burning limit, and a radius of 0.95 ± 0.05 R<SUB>J</SUB>. We determine the age to be &gt;0.5 Gyr, using model isochrones, which is found to be in agreement with SED fitting within errors. NGTS-28Ab is one of the shortest period systems found within the brown dwarf desert, as well as one of the highest mass brown dwarfs that transits an M dwarf. This makes NGTS-28Ab another important discovery within this scarcely populated region.
dc.publisherMonthly Notices of the Royal Astronomical Society
dc.titleNGTS-28Ab: A short period transiting brown dwarf
dc.typearticle
dc.source.journalMNRAS
dc.source.journalMNRAS.tmp
dc.identifier.bibcode2024MNRAS.tmp..603H


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