NOAO >   Observing Info >   Approved Programs >   2017A-0068

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Program Information for 2017A-0068


PI: Ellyn Baines, Naval Research Laboratory, ellyn.baines@nrl.navy.mil
Address: Remote Sensing Division, 4555 Overlook Ave SW, Washington, DC 20375 USA

CoI: Pawel Zielinski, Masaryk University
CoI: Martin Vanko, SAS
CoI: Andrzej Niedzielski, Nicolaus Copernicus University
CoI: Aleksander Wolszczan, Pennsylvania State U.

Title: Measuring Candidate Exoplanet Host Star Radii

Abstract: We propose to measure the radii of exoplanet candidate host stars using the CHARA Array. The target sample consists of 15 giant and subgiant stars taken from Penn State-Torun Planet Search's spectroscopic survey for radial velocity planets. We aim to more completely characterize the stars so we can more completely characterize any planets found orbiting them. The radius of the star is a critical parameter for the calculation of stellar luminosity and mass, which are often not well known for giant stars. Therefore, this problem also influences the determination of the orbital period, mass, and the surface temperature of the planet. Interferometric observations will significantly decrease the errors in these parameters and help us describe both the parent stars and their planets, painting a more complete picture of our neighbors.

Program Type: Standard/Galactic

Scheduled Nights:
Run 2 (2017A):  CHARA/Classic -- 10hrs


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NOAO >   Observing Info >   Approved Programs >   2017A-0068

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