TY - JOUR
T1 - Further evidence of the planetary nature of HD 95086 b from Gemini/NICI H-band data
AU - Meshkat, T.
AU - Bailey, V.
AU - Rameau, J.
AU - Bonnefoy, M.
AU - Boccaletti, A.
AU - Mamajek, E. E.
AU - Kenworthy, M.
AU - Chauvin, G.
AU - Lagrange, A. M.
AU - Su, K. Y.L.
AU - Currie, T.
PY - 2013/10/1
Y1 - 2013/10/1
N2 - We present our analysis of the Gemini/NICI H-band data of HD 95086, following the discovery of the planet HD 95086 b in L′. The H-band data reach a contrast of 12.7 mag relative to the host star at 5σ levels in the location of HD 95086 b, and no point source is found. Our non-detection and H-L′ color limit rules out the possibility that the object is a foreground L/T dwarf and that, if it is bound to HD 95086, it is a genuine planetary mass object. We estimate a new pre-main-sequence isochronal age for HD 95086 of 17 ± 4 Myr, which is commensurate with previous mean age estimates for the Lower Cen-Crux subgroup. Adopting an age of 17 Myr, the color limit is inconsistent with the COND model, marginally consistent with the BT-SETTL model, and consistent with the DUSTY model.
AB - We present our analysis of the Gemini/NICI H-band data of HD 95086, following the discovery of the planet HD 95086 b in L′. The H-band data reach a contrast of 12.7 mag relative to the host star at 5σ levels in the location of HD 95086 b, and no point source is found. Our non-detection and H-L′ color limit rules out the possibility that the object is a foreground L/T dwarf and that, if it is bound to HD 95086, it is a genuine planetary mass object. We estimate a new pre-main-sequence isochronal age for HD 95086 of 17 ± 4 Myr, which is commensurate with previous mean age estimates for the Lower Cen-Crux subgroup. Adopting an age of 17 Myr, the color limit is inconsistent with the COND model, marginally consistent with the BT-SETTL model, and consistent with the DUSTY model.
KW - planets and satellites: detection
KW - stars: individual (HD 95086)
UR - http://www.scopus.com/inward/record.url?scp=84884827862&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84884827862&partnerID=8YFLogxK
U2 - 10.1088/2041-8205/775/2/L40
DO - 10.1088/2041-8205/775/2/L40
M3 - Article
AN - SCOPUS:84884827862
SN - 2041-8205
VL - 775
JO - Astrophysical Journal Letters
JF - Astrophysical Journal Letters
IS - 2
M1 - L40
ER -