(Proposal ID) S13B-085

(PI) Crossfield, Ian

(Proposal Title)
Carbon Abundances and Bolometric Luminosities of Hot Jupiters

(Abstract)
Infrared photometry of large, short-period transiting planets (hot Jupiters) 
has begun to provide a rough outline of their composition and atmospheric 
structure. However, significant degeneracies remain: in molecular abundances, 
the overall atmospheric temperature/pressure structure, and the planetsf
global energy budgets. Spectroscopy, properly calibrated, can best improve our 
understanding of these planets. We have recently demonstrated that MOIRCS can 
attain the precision necessary for such observations. We propose to observe 
NIR emission of two hot Jupiters with MOIRCS via R1300 multi-object 
spectroscopy. Our observations will improve estimates of carbon abundances and 
the structure of these planetsfdayside atmospheres.