Details

Autor(en) / Beteiligte

• 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.
• Patience, 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.
• Duchêne, 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.
• Cotten, T. H.
• 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.
• Perrin, M. D.
• Poyneer, L. A.
• Rafikov, R. R.
• Rantakyrö, F. T.
• Rice, E. L.
• 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.

Titel

Discovery and spectroscopy of the young jovian planet 51 Eri b with the Gemini Planet Imager

Ist Teil von

• Science (American Association for the Advancement of Science), 2015-10, Vol.350 (6256), p.64-67

Ort / Verlag

United States: American Association for the Advancement of Science

Erscheinungsjahr

2015

Quelle

American Association for the Advancement of Science

Beschreibungen/Notizen

• Directly detecting thermal emission from young extrasolar planets allows measurement of their atmospheric compositions and luminosities, which are influenced by their formation mechanisms. Using the Gemini Planet Imager, we discovered a planet orbiting the ∼20-million-year-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 (normalized by the luminosity of the Sun) of 1.6 to 4.0 × 10–6 and an effective temperature of 600 to 750 kelvin. 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.