The discovery of the T8.5 dwarf UGPS J0521+3640
Identifieur interne : 006307 ( Main/Exploration ); précédent : 006306; suivant : 006308The discovery of the T8.5 dwarf UGPS J0521+3640
Auteurs : Ben Burningham [Royaume-Uni] ; P. W. Lucas ; S. K. Leggett [États-Unis] ; R. Smart [Italie] ; D. Baker ; D. J. Pinfield ; C. G. Tinney [Australie] ; D. Homeier [Allemagne] ; F. Allard [France] ; Z. H. Zhang ; J. Gomes ; A. C. Day-Jones [Chili] ; H. R. A. Jones ; G. Kovács ; N. Lodieu [Espagne] ; F. Marocco ; D. N. Murray ; B. Sip CzSource :
- Monthly Notices of the Royal Astronomical Society: Letters [ 1745-3925 ] ; 2011-06-11.
English descriptors
- KwdEn :
- Burningham, Cool companions, Data release, Dwarf ugps, Galactic plane, Gemini observatory, Ideal candidate, Istituto nazionale, Lucas, Mnras, Model grid, Monthly notices, Photometry, Project number, Proper motion, Proper motions, Settl model grid, Solar metallicity, Spectral type, Spectral type plots, Spectral typing index ratios, Spie conf, Total integration time, Ugps, Ugps ugps, Ukidss, Visual inspection.
- Teeft :
- Burningham, Cool companions, Data release, Dwarf ugps, Galactic plane, Gemini observatory, Ideal candidate, Istituto nazionale, Lucas, Mnras, Model grid, Monthly notices, Photometry, Project number, Proper motion, Proper motions, Settl model grid, Solar metallicity, Spectral type, Spectral type plots, Spectral typing index ratios, Spie conf, Total integration time, Ugps, Ugps ugps, Ukidss, Visual inspection.
Abstract
We have carried out a search for late‐type T dwarfs in the UKIRT Infrared Deep Sky Survey Galactic Plane Survey 6th Data Release. The search yielded two persuasive candidates, both of which have been confirmed as T dwarfs. The brightest, UGPS J0521+3640, has been assigned the spectral type T8.5 and appears to lie at a distance of 7–9 pc. The fainter of the two, UGPS J0652+0324, is classified as a T5.5 dwarf and lies at an estimated distance of 28–37 pc. Warm‐Spitzer observations in IRAC channels 1 and 2, taken as part of the GLIMPSE360 Legacy Survey, are available for UGPS J0521+3640 and we used these data with the near‐infrared spectroscopy to estimate its properties. We find best‐fitting solar metallicity BT‐Settl models for Teff= 600 and 650 K and log g= 4.5 and 5.0. These parameters suggest a mass between 14 and 32MJ for an age between 1 and 5 Gyr. The proximity of this very cool T dwarf, and its location in the Galactic plane, makes it an ideal candidate for high‐resolution adaptive optics imaging to search for cool companions.
Url:
DOI: 10.1111/j.1745-3933.2011.01062.x
Affiliations:
- Allemagne, Australie, Chili, Espagne, France, Italie, Royaume-Uni, États-Unis
- Basse-Saxe, Hawaï, Nouvelle-Galles du Sud
- Göttingen, Sydney
Links toward previous steps (curation, corpus...)
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- to stream Istex, to step Curation: 001251
- to stream Istex, to step Checkpoint: 000726
- to stream Main, to step Merge: 006683
- to stream Main, to step Curation: 006307
Le document en format XML
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Zhang</name><affiliation><wicri:noCountry code="subField">9AB</wicri:noCountry></affiliation></author><author><name sortKey="Gomes, J" sort="Gomes, J" uniqKey="Gomes J" first="J." last="Gomes">J. Gomes</name><affiliation><wicri:noCountry code="subField">9AB</wicri:noCountry></affiliation></author><author><name sortKey="Day Ones, A C" sort="Day Ones, A C" uniqKey="Day Ones A" first="A. C." last="Day-Jones">A. C. Day-Jones</name><affiliation wicri:level="1"><country xml:lang="fr">Chili</country><wicri:regionArea>Camino el Observatorio # 1515, Universidad de Chile, Santiago, Casilla 36‐D</wicri:regionArea><wicri:noRegion>Casilla 36‐D</wicri:noRegion></affiliation></author><author><name sortKey="Jones, H R A" sort="Jones, H R A" uniqKey="Jones H" first="H. R. A." last="Jones">H. R. A. Jones</name><affiliation><wicri:noCountry code="subField">9AB</wicri:noCountry></affiliation></author><author><name sortKey="Kovacs, G" sort="Kovacs, G" uniqKey="Kovacs G" first="G." last="Kovács">G. Kovács</name><affiliation><wicri:noCountry code="subField">0HA</wicri:noCountry></affiliation></author><author><name sortKey="Lodieu, N" sort="Lodieu, N" uniqKey="Lodieu N" first="N." last="Lodieu">N. Lodieu</name><affiliation wicri:level="1"><country xml:lang="fr">Espagne</country><wicri:regionArea>Instituto de Astrofísica de Canarias (IAC), Calle Vía Láctea s/n, E‐38200 La Laguna, Tenerife</wicri:regionArea><wicri:noRegion>Tenerife</wicri:noRegion></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Espagne</country><wicri:regionArea>Departamento de Astrofísica, Universidad de La Laguna (ULL), E‐38205 La Laguna, Tenerife</wicri:regionArea><wicri:noRegion>Tenerife</wicri:noRegion></affiliation></author><author><name sortKey="Marocco, F" sort="Marocco, F" uniqKey="Marocco F" first="F." last="Marocco">F. Marocco</name><affiliation><wicri:noCountry code="subField">9AB</wicri:noCountry></affiliation></author><author><name sortKey="Murray, D N" sort="Murray, D N" uniqKey="Murray D" first="D. N." last="Murray">D. N. Murray</name><affiliation><wicri:noCountry code="subField">9AB</wicri:noCountry></affiliation></author><author><name sortKey="Sip Cz, B" sort="Sip Cz, B" uniqKey="Sip Cz B" first="B." last="Sip Cz">B. Sip Cz</name><affiliation><wicri:noCountry code="subField">9AB</wicri:noCountry></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Monthly Notices of the Royal Astronomical Society: Letters</title><title level="j" type="alt">MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY LETTERS</title><idno type="ISSN">1745-3925</idno><idno type="eISSN">1745-3933</idno><imprint><biblScope unit="vol">414</biblScope><biblScope unit="issue">1</biblScope><biblScope unit="page" from="L90">L90</biblScope><biblScope unit="page" to="L94">L94</biblScope><biblScope unit="page-count">5</biblScope><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2011-06-11">2011-06-11</date></imprint><idno type="ISSN">1745-3925</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">1745-3925</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Burningham</term><term>Cool companions</term><term>Data release</term><term>Dwarf ugps</term><term>Galactic plane</term><term>Gemini observatory</term><term>Ideal candidate</term><term>Istituto nazionale</term><term>Lucas</term><term>Mnras</term><term>Model grid</term><term>Monthly notices</term><term>Photometry</term><term>Project number</term><term>Proper motion</term><term>Proper motions</term><term>Settl model grid</term><term>Solar metallicity</term><term>Spectral type</term><term>Spectral type plots</term><term>Spectral typing index ratios</term><term>Spie conf</term><term>Total integration time</term><term>Ugps</term><term>Ugps ugps</term><term>Ukidss</term><term>Visual inspection</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Burningham</term><term>Cool companions</term><term>Data release</term><term>Dwarf ugps</term><term>Galactic plane</term><term>Gemini observatory</term><term>Ideal candidate</term><term>Istituto nazionale</term><term>Lucas</term><term>Mnras</term><term>Model grid</term><term>Monthly notices</term><term>Photometry</term><term>Project number</term><term>Proper motion</term><term>Proper motions</term><term>Settl model grid</term><term>Solar metallicity</term><term>Spectral type</term><term>Spectral type plots</term><term>Spectral typing index ratios</term><term>Spie conf</term><term>Total integration time</term><term>Ugps</term><term>Ugps ugps</term><term>Ukidss</term><term>Visual inspection</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We have carried out a search for late‐type T dwarfs in the UKIRT Infrared Deep Sky Survey Galactic Plane Survey 6th Data Release. The search yielded two persuasive candidates, both of which have been confirmed as T dwarfs. The brightest, UGPS J0521+3640, has been assigned the spectral type T8.5 and appears to lie at a distance of 7–9 pc. The fainter of the two, UGPS J0652+0324, is classified as a T5.5 dwarf and lies at an estimated distance of 28–37 pc. Warm‐Spitzer observations in IRAC channels 1 and 2, taken as part of the GLIMPSE360 Legacy Survey, are available for UGPS J0521+3640 and we used these data with the near‐infrared spectroscopy to estimate its properties. We find best‐fitting solar metallicity BT‐Settl models for Teff= 600 and 650 K and log g= 4.5 and 5.0. These parameters suggest a mass between 14 and 32MJ for an age between 1 and 5 Gyr. The proximity of this very cool T dwarf, and its location in the Galactic plane, makes it an ideal candidate for high‐resolution adaptive optics imaging to search for cool companions.</div></front></TEI><affiliations><list><country><li>Allemagne</li><li>Australie</li><li>Chili</li><li>Espagne</li><li>France</li><li>Italie</li><li>Royaume-Uni</li><li>États-Unis</li></country><region><li>Basse-Saxe</li><li>Hawaï</li><li>Nouvelle-Galles du Sud</li></region><settlement><li>Göttingen</li><li>Sydney</li></settlement></list><tree><noCountry><name sortKey="Baker, D" sort="Baker, D" uniqKey="Baker D" first="D." last="Baker">D. Baker</name><name sortKey="Gomes, J" sort="Gomes, J" uniqKey="Gomes J" first="J." last="Gomes">J. Gomes</name><name sortKey="Jones, H R A" sort="Jones, H R A" uniqKey="Jones H" first="H. R. A." last="Jones">H. R. A. Jones</name><name sortKey="Kovacs, G" sort="Kovacs, G" uniqKey="Kovacs G" first="G." last="Kovács">G. Kovács</name><name sortKey="Lucas, P W" sort="Lucas, P W" uniqKey="Lucas P" first="P. W." last="Lucas">P. W. Lucas</name><name sortKey="Marocco, F" sort="Marocco, F" uniqKey="Marocco F" first="F." last="Marocco">F. Marocco</name><name sortKey="Murray, D N" sort="Murray, D N" uniqKey="Murray D" first="D. N." last="Murray">D. N. Murray</name><name sortKey="Pinfield, D J" sort="Pinfield, D J" uniqKey="Pinfield D" first="D. J." last="Pinfield">D. J. Pinfield</name><name sortKey="Sip Cz, B" sort="Sip Cz, B" uniqKey="Sip Cz B" first="B." last="Sip Cz">B. Sip Cz</name><name sortKey="Zhang, Z H" sort="Zhang, Z H" uniqKey="Zhang Z" first="Z. H." last="Zhang">Z. H. Zhang</name></noCountry><country name="Royaume-Uni"><noRegion><name sortKey="Burningham, Ben" sort="Burningham, Ben" uniqKey="Burningham B" first="Ben" last="Burningham">Ben Burningham</name></noRegion></country><country name="États-Unis"><region name="Hawaï"><name sortKey="Leggett, S K" sort="Leggett, S K" uniqKey="Leggett S" first="S. K." last="Leggett">S. K. Leggett</name></region></country><country name="Italie"><noRegion><name sortKey="Smart, R" sort="Smart, R" uniqKey="Smart R" first="R." last="Smart">R. Smart</name></noRegion></country><country name="Australie"><region name="Nouvelle-Galles du Sud"><name sortKey="Tinney, C G" sort="Tinney, C G" uniqKey="Tinney C" first="C. G." last="Tinney">C. G. Tinney</name></region></country><country name="Allemagne"><region name="Basse-Saxe"><name sortKey="Homeier, D" sort="Homeier, D" uniqKey="Homeier D" first="D." last="Homeier">D. Homeier</name></region></country><country name="France"><noRegion><name sortKey="Allard, F" sort="Allard, F" uniqKey="Allard F" first="F." last="Allard">F. Allard</name></noRegion></country><country name="Chili"><noRegion><name sortKey="Day Ones, A C" sort="Day Ones, A C" uniqKey="Day Ones A" first="A. C." last="Day-Jones">A. C. Day-Jones</name></noRegion></country><country name="Espagne"><noRegion><name sortKey="Lodieu, N" sort="Lodieu, N" uniqKey="Lodieu N" first="N." last="Lodieu">N. Lodieu</name></noRegion><name sortKey="Lodieu, N" sort="Lodieu, N" uniqKey="Lodieu N" first="N." last="Lodieu">N. Lodieu</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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