NOAO >   Observing Info >   Approved Programs >   2016B-0304

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Program Information for 2016B-0304


PI: Alan Hulsebus, Iowa State U., hulsebus@iastate.edu
Address: Department of Physics and Astronomy, Ames, IA, 50011-3160 USA

CoI: Massimo Marengo, Iowa State U.
CoI: Joseph Carson, College of Charleston

Title: Follow-up Spectroscopy for Common-Proper-Motion T-Dwarf Companion Candidate

Abstract: We propose to obtain GNIRS spectroscopy of a T-Dwarf candidate companion of the planet-host star HD 23596. Confirming this to be a physical companion of the star would help explain the high eccentricity of the known RV planet HD 23596b (e=0.3). We have previously observed this object with Spitzer/IRAC in two epochs and determined it to have Near-IR colors consistent with a T3.5 dwarf and similar proper motion to HD 23596. The candidate is separated from the primary star by 1.9' and its expected J-band magnitude is ~21. We request 3 hours total exposure time to have sufficient S/N to characterize the spectral type of the source and confirm its brown dwarf nature.

Program Type: Standard/Galactic

Scheduled Nights:
Run 1 (2016B):  GEM-NQ/GNIRS -- 3.8hrs band 2 (GN-2016B-Q-42)


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NOAO >   Observing Info >   Approved Programs >   2016B-0304

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