NOAO >   Observing Info >   Approved Programs >   2016A-0263

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Program Information for 2016A-0263


PI: Ann Marie Cody, NASA Ames Research Center, annmarie.cody@nasa.gov
Address: MS 244-30, Moffett Field, CA, 94035 USA

CoI: Steve B Howell, NASA Ames Research Center

Title: The effect of binarity on protoplanetary disk dissipation and accretion

Abstract: During spring 2016, the K2 Mission will observe several hundred disk-bearing young stars in the Lagoon Nebula. At ~1 Myr of age, planet formation is likely underway in the disks. We will be probing the conditions underlying planet assembly by analyzing the K2 time series photometry, which can reveal orbiting asymmetries and information on accretion flow. We will correlate light curve metrics with stellar parameters-- a crucial one of which is binarity. To assess the effect of close-in companions on inner disk structure and light curve behavior, we are proposing for time on the Differential Speckle Survey Instrument (DSSI), which will be installed on Gemini South during 2016A. With its exquisite spatial resolution, DSSI will reveal companions down to 25 AU separation at the distance of the Lagoon region. We will use the resulting binary detection rates to perform a statistical analysis of disk, accretion, and multiplicity properties among a set of 110 stars over a significant mass range.

Program Type: Standard/Galactic

Scheduled Nights:
Run 1 (2016A):  GEM-S-SVC/DSSI -- 30hrs band 2 (GS-2016A-Q-64)


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2016A-0263

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