NOAO >   Observing Info >   Approved Programs >   2017B-0194

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Program Information for 2017B-0194


PI: Joel Hartman, Princeton U., jhartman@astro.princeton.edu
Address: Astrophysical Sciences, 4 Ivy Lane, Princeton, NJ 08544

CoI: Gaspar Bakos, Princeton U.
CoI: Joshua Wallace, Princeton U.

Title: Follow-up Observations of HATNet Transiting Planet Candidates with WIYN/NESSI

Abstract: Transiting planets around bright stars are key objects for exploring the physical properties of planets outside the Solar System. The US- based HATNet survey is one of the leading efforts for discovering and characterizing these planets. Here we propose to use the NESSI instrument on the WIYN~3.5,m to carry out follow-up observations of 146 candidate transiting planet systems identified by HATNet. NESSI will be used to search for resolved stellar companions to these candidates in order to rule out blended stellar eclipsing binary false positives, correct the masses and radii of confirmed planets for dilution from any companions that are found, and to constrain the fraction of hot Jupiter host stars with wide binary companions. The WIYN/NESSI observations will provide sensitivity to companions with $Delta R la 3$ and separations down to $0.2arcsec$, whereas a companion proposal for WIYN/WHIRC will provide sensitivity to higher contrast targets ($Delta J la 7$), but at more distant separations (greater than $sim 1arcsec$).

Program Type: Standard/NASA WIYN

Scheduled Nights:
Run 1 (2017B):  WIYNQ/NESSI -- 40hrs


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NOAO >   Observing Info >   Approved Programs >   2017B-0194

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