SIMBAD references

2015ApJ...798L...3C - Astrophys. J., 798, L3 (2015/January-1)

The first H-band spectrum of the giant planet β Pictoris b.

CHILCOTE J., BARMAN T., FITZGERALD M.P., GRAHAM J.R., LARKIN J.E., MACINTOSH B., BAUMAN B., BURROWS A.S., CARDWELL A., DE ROSA R.J., DILLON D., DOYON R., DUNN J., ERIKSON D., GAVEL D., GOODSELL S.J., HARTUNG M., HIBON P., INGRAHAM P., KALAS P., KONOPACKY Q., MAIRE J., MARCHIS F., MARLEY M.S., MAROIS C., MILLAR-BLANCHAER M., MORZINSKI K., NORTON A., OPPENHEIMER R., PALMER D., PATIENCE J., PERRIN M., POYNEER L., PUEYO L., RANTAKYRO F.T., SADAKUNI N., SADDLEMYER L., SAVRANSKY D., SERIO A., SIVARAMAKRISHNAN A., SONG I., SOUMMER R., THOMAS S., WALLACE J.K., WIKTOROWICZ S. and WOLFF S.

Abstract (from CDS):

Using the recently installed Gemini Planet Imager (GPI), we have obtained the first H-band spectrum of the planetary companion to the nearby young star β Pictoris. GPI is designed to image and provide low-resolution spectra of Jupiter-sized, self-luminous planetary companions around young nearby stars. These observations were taken covering the H band (1.65 µm). The spectrum has a resolving power of ∼45 and demonstrates the distinctive triangular shape of a cool substellar object with low surface gravity. Using atmospheric models, we find an effective temperature of 1600-1700 K and a surface gravity of log (g) = 3.5-4.5 (cgs units). These values agree well with "hot-start" predictions from planetary evolution models for a gas giant with mass between 10 and 12 M_Jup and age between 10 and 20 Myr.

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Journal keyword(s): infrared: general - instrumentation: adaptive optics - planetary systems - stars: individual: a Pictoris - techniques: spectroscopic

Simbad objects: 15

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