51 Eri b near-infrared spectrum

Directly detecting thermal emission from young extrasolar planets allows measurement of their atmospheric composition and luminosity, which is influenced by their formation mechanism. Using the Gemini Planet Imager, we discovered a planet orbiting the ~20Myr-old star 51 Eridani at a projected separation of 13 astronomical units. Near-infrared observations show a spectrum with strong methane and water vapor absorption. Modeling of the spectra and photometry yields a luminosity of L/LS=1.6-4.0x10^-6^ and an effective temperature of 600-750K. For this age and luminosity, "hot-start" formation models indicate a mass twice that of Jupiter. This planet also has a sufficiently low luminosity to be consistent with the "cold- start" core accretion process that may have formed Jupiter.

Identifier
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/other/Sci/350.64
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/other/Sci/350.64
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/other/Sci/350.64
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/other/Sci/350.64
Provenance
Creator Macintosh B.; Graham J.R.; Barman T.; De Rosa R.J.; Konopacky Q.,Marley M.S.; Marois C.; Nielsen E.L.; Pueyo L.; Rajan A.; Rameau J.,Saumon D.; Wang J.J.; Ammons M.; Arriaga P.; Artigau E.; Beckwith S.,Brewster J.; Bruzzone S.; Bulger J.; Burningham B.; Burrows A.S.; Chen C.,Chiang E.; Chilcote J.K.; Dawson R.I.; Dong R.; Doyon R.; Draper Z.H.,Duchene G.; Esposito T.M.; Fabrycky D.; Fitzgerald M.P.; Follette K.B.,Fortney J.J.; Gerard B.; Goodsell S.; Greenbaum A.Z.; Hibon P.,Hinkley S.; Hufford T.; Hung L.-W.; Ingraham P.; Johnson-Groh M.; Kalas P.,Lafreniere D.; Larkin J.E.; Lee J.; Line M.; Long D.; Maire J.; Marchis F.,Matthews B.C.; Max C.E.; Metchev S.; Millar-Blanchaer M.A.; Mittal T.,Morley C.V.; Morzinski K.M.; Murray-Clay R.; Oppenheimer R.; Palmer D.W.,Patel R.; Patience J.; Perrin M.D.; Poyneer L.A.; Rafikov R.R.,Rantakyro F.T.; Rice E.; Rojo P.; Rudy A.R.; Ruffio J.-B.; Ruiz M.T.,Sadakuni N.; Saddlemyer L.; Salama M.; Savransky D.; Schneider A.C.,Sivaramakrishnan A.; Song I.; Soummer R.; Thomas S.; Vasisht G.,Wallace J.K.; Ward-Duong K.; Wiktorowicz S.J.; Wolff S.G; Zuckerman B.
Publisher CDS
Publication Year 2015
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Interdisciplinary Astronomy; Natural Sciences; Observational Astronomy; Physics; Solar System Astronomy; Stellar Astronomy