The discovery of a very cool, very nearby brown dwarf in the Galactic plane

We report the discovery of a very cool, isolated brown dwarf, UGPS 0722-05, with the UKIDSS Galactic Plane Survey. The near-infrared spectrum displays deeper H2O and CH4 troughs than the coolest known T dwarfs and an unidentified absorption feature at 1.275 um. We provisionally classify the object a...

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Autores: Lucas, Philip W., Tinney, C. G., Burningham, Ben, Leggett, S. K., Pinfield, David J., Smart, Richard, Jones, Hugh R. A., Marocco, Federico, Barber, Robert J., Yurchenko, Sergei N., Tennyson, Jonathan, Ishii, Miki, Tamura, Motohide, Day-Jones, Avril C., Adamson, Andrew, Allard, France, Homeier, Derek
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2010
País:Chile
Idioma:inglés
OAI Identifier:oai:repositorio.anid.cl:10533/245885
Acceso en línea:https://hdl.handle.net/10533/245885
Access Level:acceso abierto
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spelling Homeier, DerekAllard, FranceAdamson, AndrewDay-Jones, Avril C.Tamura, MotohideIshii, MikiTennyson, JonathanYurchenko, Sergei N.Barber, Robert J.Marocco, FedericoJones, Hugh R. A.Smart, RichardPinfield, David J.Leggett, S. K.Burningham, BenTinney, C. G.Lucas, Philip W.201010.1111/j.1745-3933.2010.00927.xhttps://hdl.handle.net/10533/245885http://purl.org/coar/access_right/c_abf2The discovery of a very cool, very nearby brown dwarf in the Galactic planeLucas, Philip W.Tinney, C. G.Burningham, BenLeggett, S. K.Pinfield, David J.Smart, RichardJones, Hugh R. A.Marocco, FedericoBarber, Robert J.Yurchenko, Sergei N.Tennyson, JonathanIshii, MikiTamura, MotohideDay-Jones, Avril C.Adamson, AndrewAllard, FranceHomeier, Derek2020-08-14T20:42:49Z2022-07-08T20:15:53Z2020-08-14T20:42:49Z2022-07-08T20:15:53Z2010We report the discovery of a very cool, isolated brown dwarf, UGPS 0722-05, with the UKIDSS Galactic Plane Survey. The near-infrared spectrum displays deeper H2O and CH4 troughs than the coolest known T dwarfs and an unidentified absorption feature at 1.275 um. We provisionally classify the object as a T10 dwarf but note that it may in future come to be regarded as the first example of a new spectral type. The distance is measured by trigonometric parallax as d=4.1{-0.5}{+0.6} pc, making it the closest known isolated brown dwarf. With the aid of Spitzer/IRAC we measure H-[4.5] = 4.71. It is the coolest brown dwarf presently known -- the only known T dwarf that is redder in H-[4.5] is the peculiar T7.5 dwarf SDSS J1416+13B, which is thought to be warmer and more luminous than UGPS 0722-05. Our measurement of the luminosity, aided by Gemini/T-ReCS N band photometry, is L = 9.2 +/- 3.1x10^{-7} Lsun. Using a comparison with well studied T8.5 and T9 dwarfs we deduce Teff=520 +/- 40 K. This is supported by predictions of the Saumon & Marley models. With apparent magnitude J=16.52, UGPS 0722-05 is the brightest T dwarf discovered by UKIDSS so far. It offers opportunities for future study via high resolution near-infrared spectroscopy and spectroscopy in the thermal infrared.CENASTROFONDAPFONDAP1501000315010003virtual::25212-1WOS:000283118100064https://hdl.handle.net/10533/245885enginstname: ANIDreponame: Repositorio Digital RI2.010.1111/j.1745-3933.2010.00927.xhttps://arxiv.org/abs/1004.0317info:eu-repo/semantics/openAccessThe discovery of a very cool, very nearby brown dwarf in the Galactic planeMonthly Notices of the Royal Astronomical SocietyArticuloinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttps://hdl.handle.net/10533/245885FONDAPhttp://purl.org/coar/resource_type/c_2df8fbb1045fc0e1-ef55-4532-8afe-69fe789d964dvirtual::25212-1045fc0e1-ef55-4532-8afe-69fe789d964dvirtual::25212-110533/245885oai:repositorio.anid.cl:10533/2458852023-07-24 20:08:25.425https://repositorio.anid.clRepositorio ANIDaletelier@anid.cl
dc.title.none.fl_str_mv The discovery of a very cool, very nearby brown dwarf in the Galactic plane
dc.title.journal.none.fl_str_mv Monthly Notices of the Royal Astronomical Society
title The discovery of a very cool, very nearby brown dwarf in the Galactic plane
spellingShingle The discovery of a very cool, very nearby brown dwarf in the Galactic plane
Lucas, Philip W.
title_short The discovery of a very cool, very nearby brown dwarf in the Galactic plane
title_full The discovery of a very cool, very nearby brown dwarf in the Galactic plane
title_fullStr The discovery of a very cool, very nearby brown dwarf in the Galactic plane
title_full_unstemmed The discovery of a very cool, very nearby brown dwarf in the Galactic plane
title_sort The discovery of a very cool, very nearby brown dwarf in the Galactic plane
dc.creator.none.fl_str_mv Lucas, Philip W.
Tinney, C. G.
Burningham, Ben
Leggett, S. K.
Pinfield, David J.
Smart, Richard
Jones, Hugh R. A.
Marocco, Federico
Barber, Robert J.
Yurchenko, Sergei N.
Tennyson, Jonathan
Ishii, Miki
Tamura, Motohide
Day-Jones, Avril C.
Adamson, Andrew
Allard, France
Homeier, Derek
author Lucas, Philip W.
author_facet Lucas, Philip W.
Tinney, C. G.
Burningham, Ben
Leggett, S. K.
Pinfield, David J.
Smart, Richard
Jones, Hugh R. A.
Marocco, Federico
Barber, Robert J.
Yurchenko, Sergei N.
Tennyson, Jonathan
Ishii, Miki
Tamura, Motohide
Day-Jones, Avril C.
Adamson, Andrew
Allard, France
Homeier, Derek
author_role author
author2 Tinney, C. G.
Burningham, Ben
Leggett, S. K.
Pinfield, David J.
Smart, Richard
Jones, Hugh R. A.
Marocco, Federico
Barber, Robert J.
Yurchenko, Sergei N.
Tennyson, Jonathan
Ishii, Miki
Tamura, Motohide
Day-Jones, Avril C.
Adamson, Andrew
Allard, France
Homeier, Derek
author2_role author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
author
description We report the discovery of a very cool, isolated brown dwarf, UGPS 0722-05, with the UKIDSS Galactic Plane Survey. The near-infrared spectrum displays deeper H2O and CH4 troughs than the coolest known T dwarfs and an unidentified absorption feature at 1.275 um. We provisionally classify the object as a T10 dwarf but note that it may in future come to be regarded as the first example of a new spectral type. The distance is measured by trigonometric parallax as d=4.1{-0.5}{+0.6} pc, making it the closest known isolated brown dwarf. With the aid of Spitzer/IRAC we measure H-[4.5] = 4.71. It is the coolest brown dwarf presently known -- the only known T dwarf that is redder in H-[4.5] is the peculiar T7.5 dwarf SDSS J1416+13B, which is thought to be warmer and more luminous than UGPS 0722-05. Our measurement of the luminosity, aided by Gemini/T-ReCS N band photometry, is L = 9.2 +/- 3.1x10^{-7} Lsun. Using a comparison with well studied T8.5 and T9 dwarfs we deduce Teff=520 +/- 40 K. This is supported by predictions of the Saumon & Marley models. With apparent magnitude J=16.52, UGPS 0722-05 is the brightest T dwarf discovered by UKIDSS so far. It offers opportunities for future study via high resolution near-infrared spectroscopy and spectroscopy in the thermal infrared.
publishDate 2010
dc.date.issued.none.fl_str_mv 2010
dc.date.accessioned.none.fl_str_mv 2020-08-14T20:42:49Z
2022-07-08T20:15:53Z
dc.date.available.none.fl_str_mv 2020-08-14T20:42:49Z
2022-07-08T20:15:53Z
dc.type.none.fl_str_mv Articulo
dc.type.driver.none.fl_str_mv info:eu-repo/semantics/article
dc.type.openaire.none.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.folio.none.fl_str_mv 15010003
15010003
dc.identifier.idwos.none.fl_str_mv WOS:000283118100064
dc.identifier.uri.none.fl_str_mv https://hdl.handle.net/10533/245885
identifier_str_mv 15010003
WOS:000283118100064
url https://hdl.handle.net/10533/245885
dc.language.iso.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv instname: ANID
reponame: Repositorio Digital RI2.0
dc.relation.doi.none.fl_str_mv 10.1111/j.1745-3933.2010.00927.x
dc.relation.uri.none.fl_str_mv https://arxiv.org/abs/1004.0317
dc.rights.driver.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
repository.name.fl_str_mv Repositorio ANID
repository.mail.fl_str_mv aletelier@anid.cl
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score 15,812429

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