Dataciencia

Colección SciELO Chile

Discovery of the benchmark metal-poor T8 dwarf BD +01° 2920B

Indexado

WoS	WOS:000303858400007
Scopus	SCOPUS_ID:84860919904

DOI

10.1111/J.1365-2966.2012.20549.X

Año

2012

Tipo

revisión

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras

Abstract

We have searched the Wide-field Infrared Survey Explorer first data release for widely separated (=10 000 au) late T dwarf companions to Hipparcos and Gliese stars. We have discovered a new binary system containing a K-band suppressed T8p dwarf WISEP J142320.86+011638.1 and the mildly metal poor ([Fe/H] =-0.38 +/- 0.06) primary BD +01 degrees 2920 (HIP 70319), a G1 dwarf at a distance of 17.2 pc. This new benchmark has Teff= 680 +/- 55 K and a mass of 2050MJup. Its spectral properties are well modelled except for known discrepancies in the Y and K bands. Based on the well-determined metallicity of its companion, the properties of BD +01 degrees 2920B imply that the currently known T dwarfs are dominated by young low-mass objects. We also present an accurate proper motion for the T8.5 dwarf WISEP J075003.84+272544.8.

Revista

Revista	ISSN
Monthly Notices Of The Royal Astronomical Society	0035-8711

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Disciplinas de Investigación

WOS
Astronomy & Astrophysics

Scopus
Sin Disciplinas

SciELO
Sin Disciplinas

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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

Colaboración Institucional

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Autores - Afiliación

Ord.	Autor	Género	Institución - País
1	Pinfield, David J.	Hombre	Univ Hertfordshire - Reino Unido University of Hertfordshire - Reino Unido
2	Burningham, B.	Hombre	Univ Hertfordshire - Reino Unido University of Hertfordshire - Reino Unido
3	Lodieu, N.	Hombre	Inst Astrofis Canarias - España UNIV LA LAGUNA - España Instituto Astrofisico de Canarias - España Universidad de La Laguna - España
4	Leggett, S. K.	-	Observatorio Gemini - Estados Unidos Gemini Observatory - Estados Unidos
5	Tinney, C. G.	Hombre	Univ New S Wales - Australia University of New South Wales (UNSW) Australia - Australia UNSW Sydney - Australia
6	Van Spaandonk, Lieke	Mujer	Univ Hertfordshire - Reino Unido University of Hertfordshire - Reino Unido
7	Marocco, F.	Hombre	Univ Hertfordshire - Reino Unido University of Hertfordshire - Reino Unido
8	Smart, R. L.	Hombre	Osserv Astron Torino - Italia Osservatorio Astronomico di Torino - Italia
9	Manatakis, Dimitrios K.	Hombre	Univ Hertfordshire - Reino Unido
10	Smith, L. C.	Mujer	Univ Hertfordshire - Reino Unido University of Hertfordshire - Reino Unido
11	Lucas, Philip	Hombre	Univ Hertfordshire - Reino Unido University of Hertfordshire - Reino Unido
12	DAY-JONES, AVRIL CARA	Mujer	Universidad de Chile - Chile
13	Murray, D. N.	-	Univ Hertfordshire - Reino Unido University of Hertfordshire - Reino Unido
14	Katsiyannis, A. C.	-	Natl Observ Athens - Grecia National Observatory of Athens - Grecia
15	CATALAN-HOTT, SUSAN ROSSEMARIE	Mujer	Univ Hertfordshire - Reino Unido University of Hertfordshire - Reino Unido
16	Cardoso, Catia V.	-	Univ Hertfordshire - Reino Unido Osserv Astron Torino - Italia Univ Exeter - Reino Unido University of Hertfordshire - Reino Unido Osservatorio Astronomico di Torino - Italia University of Exeter - Reino Unido
17	Clarke, J. R. A.	Hombre	Univ Hertfordshire - Reino Unido University of Hertfordshire - Reino Unido
18	Folkes, S. L.	Hombre	Universidad de Valparaíso - Chile
19	GALVEZ-ORTIZ, MARIA CRUZ	Mujer	Ctr Astrobiol CSIC INTA - España Centro de Astrobiología (CSIC-INTA) - España
20	Homeier, D.	Hombre	Univ Lyon - Francia Ecole Normale Supérieure de Lyon - Francia
21	JENKINS, JAMES STEWART	Hombre	Universidad de Chile - Chile
22	Jones, Hugh R. A.	Hombre	Univ Hertfordshire - Reino Unido University of Hertfordshire - Reino Unido
23	Zhang, Z. H.	-	Univ Hertfordshire - Reino Unido University of Hertfordshire - Reino Unido

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Origen de Citas Identificadas

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Citas identificadas: Las citas provienen de documentos incluidos en la base de datos de DATACIENCIA

Citas Identificadas: 21.31 %
Citas No-identificadas: 78.69 %

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Citas identificadas: Las citas provienen de documentos incluidos en la base de datos de DATACIENCIA

Citas Identificadas: 21.31 %
Citas No-identificadas: 78.69 %

Financiamiento

Fuente
Spanish Ministry of Science and Innovation
European Commission
ESO
Science and Technology Facilities Council
National Aeronautics and Space Administration
Seventh Framework Programme
Gemini Observatory
FONDECYT Postdoctorado
European Research Council under the European Community
Comite Mixto ESO-Gobierno de Chile
Gemini-CONICYT
Centro de Astrofisica FONDAP
'Agence Nationale de la Recherche' (ANR)
RoPACS
RoPACS, a Marie Curie Initial Training Network
CNRS (INSU)

Muestra la fuente de financiamiento declarada en la publicación.

Agradecimientos

Agradecimiento
This publication makes use of data products from WISE, which is a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration. The UKIDSS project is defined in Lawrence et al. (2007). UKIDSS uses the UKIRT WFCAM (Casali et al. 2007) and a photometric system described in Hewett et al. (2006). The pipeline processing and science archive are described in Irwin et al. (2004) and Hambly et al. (2008). Based on observations obtained at the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy (AURA), Inc., under a cooperative agreement with the National Science Foundation (NSF) on behalf of the Gemini partnership: NSF (USA), the Science and Technology Facilities Council (United Kingdom), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), Ministerio da Ciencia, Tecnologia e Inovacao (Brazil) and Ministerio de Ciencia, Tecnologia e Innovacion Productiva (Argentina). This work made use of data obtained on Gemini projects GN-2011A-Q-73. Based in part on observations made for the VIKING survey, using VISTA at the ESO Paranal Observatory under programme ID 179.A-2004. The VISTA Data Flow System pipeline processing and science archive are described in Irwin et al. (2004) and Hambly et al. (2008). Based on observations made with the Italian Telescopio Nazionale Galileo (A22TAC96) operated on the island of La Palma by the Fundacion Galileo Galilei of the Istituto Nazionale di Astrofisica (INAF) at the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias. DJP, NL, PWL, MCG and ZZ have received support from RoPACS during this research and JG is supported by RoPACS, a Marie Curie Initial Training Network funded by the European Commission's Seventh Framework Programme. NL is funded by the national programme AYA2010-19136 funded by the Spanish Ministry of Science and Innovation. SKL is supported by the Gemini Observatory, which is operated by AURA, Inc., on behalf of the international Gemini partnership of Argentina, Australia, Brazil, Canada, Chile, the United Kingdom and the United States of America. AD is supported by a Fondecyt Postdoctorado under project number 3100098. JSJ is supported by a Fondecyt Postdoctorado under project number 3110004 and partial support from Centro de Astrofisica FONDAP 15010003, the GEMINI-CONICYT FUND and from the Comite Mixto ESO-GOBIERNO DE CHILE. DH has received funding from the 'Agence Nationale de la Recherche' (ANR), the 'Programme National de Physique Stellaire' (PNPS) of CNRS (INSU), and the European Research Council under the European Community's Seventh Framework Programme (FP7/2007-2013 Grant agreement no. 247060). Numerical simulations were performed at the Pole Scientifique de Modelisation Numerique (PSMN) at the Ecole normale superieure (ENS) in Lyon and at the Gesellschaft fur wissenschaftliche Datenverarbeitung Gottingen in collaboration with the lnstitut fur Astrophysik Gottingen. This research has made use of the SIMBAD data base, operated at CDS, Strasbourg, France.

Agradecimiento

This publication makes use of data products from WISE, which is a joint project of the University of California, Los Angeles, and the Jet Propulsion Laboratory/California Institute of Technology, funded by the National Aeronautics and Space Administration. The UKIDSS project is defined in Lawrence et al. (2007). UKIDSS uses the UKIRT WFCAM (Casali et al. 2007) and a photometric system described in Hewett et al. (2006). The pipeline processing and science archive are described in Irwin et al. (2004) and Hambly et al. (2008). Based on observations obtained at the Gemini Observatory, which is operated by the Association of Universities for Research in Astronomy (AURA), Inc., under a cooperative agreement with the National Science Foundation (NSF) on behalf of the Gemini partnership: NSF (USA), the Science and Technology Facilities Council (United Kingdom), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), Ministerio da Ciencia, Tecnologia e Inovacao (Brazil) and Ministerio de Ciencia, Tecnologia e Innovacion Productiva (Argentina). This work made use of data obtained on Gemini projects GN-2011A-Q-73. Based in part on observations made for the VIKING survey, using VISTA at the ESO Paranal Observatory under programme ID 179.A-2004. The VISTA Data Flow System pipeline processing and science archive are described in Irwin et al. (2004) and Hambly et al. (2008). Based on observations made with the Italian Telescopio Nazionale Galileo (A22TAC96) operated on the island of La Palma by the Fundacion Galileo Galilei of the Istituto Nazionale di Astrofisica (INAF) at the Spanish Observatorio del Roque de los Muchachos of the Instituto de Astrofisica de Canarias. DJP, NL, PWL, MCG and ZZ have received support from RoPACS during this research and JG is supported by RoPACS, a Marie Curie Initial Training Network funded by the European Commission's Seventh Framework Programme. NL is funded by the national programme AYA2010-19136 funded by the Spanish Ministry of Science and Innovation. SKL is supported by the Gemini Observatory, which is operated by AURA, Inc., on behalf of the international Gemini partnership of Argentina, Australia, Brazil, Canada, Chile, the United Kingdom and the United States of America. AD is supported by a Fondecyt Postdoctorado under project number 3100098. JSJ is supported by a Fondecyt Postdoctorado under project number 3110004 and partial support from Centro de Astrofisica FONDAP 15010003, the GEMINI-CONICYT FUND and from the Comite Mixto ESO-GOBIERNO DE CHILE. DH has received funding from the 'Agence Nationale de la Recherche' (ANR), the 'Programme National de Physique Stellaire' (PNPS) of CNRS (INSU), and the European Research Council under the European Community's Seventh Framework Programme (FP7/2007-2013 Grant agreement no. 247060). Numerical simulations were performed at the Pole Scientifique de Modelisation Numerique (PSMN) at the Ecole normale superieure (ENS) in Lyon and at the Gesellschaft fur wissenschaftliche Datenverarbeitung Gottingen in collaboration with the lnstitut fur Astrophysik Gottingen. This research has made use of the SIMBAD data base, operated at CDS, Strasbourg, France.

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Abstract

Revista

Métricas Externas

Disciplinas de Investigación

Colaboración Institucional

Autores - Afiliación

Origen de Citas Identificadas

Financiamiento

Agradecimientos

Departamento Gestión de Conocimiento, Monitoreo y Prospección