ELEVEN EXOPLANET HOST STAR ANGULAR DIAMETERS FROM THE CHARA ARRAY

We directly measured the angular diameters for 11 exoplanet host stars using Georgia State University's CHARA Array interferometer and calculated their linear radii and effective temperatures. The sample tends toward evolving or evolved stars and includes one dwarf, four subgiants, and six giants. We then estimated masses and ages for the stars using our effective temperatures combined with metallicity measurements from the literature.

[1]  Harold A. McAlister,et al.  ICCD Speckle Observations of Binary Stars. X. A Further Survey for Duplicity Among the Bright Stars , 1987 .

[2]  Red giant clump in the Tycho-2 catalogue , 2016, 1607.00619.

[3]  Tyler E. Nordgren,et al.  Stellar Angular Diameters of Late-Type Giants and Supergiants Measured with the Navy Prototype Optical Interferometer , 1999 .

[4]  Carlos Jaschek,et al.  The Bright Star Catalogue , 1982 .

[5]  L. Pasquini,et al.  Basic physical parameters of a selected sample of evolved stars , 2006 .

[6]  Michael W. Richmond,et al.  TASS Mark IV Photometric Survey of the Northern Sky , 2006 .

[7]  G. Torres.  The Planet Host Star γ Cephei: Physical Properties, the Binary Orbit, and the Mass of the Substellar Companion , 2006, astro-ph/0609638.

[8]  J. Valenti,et al.  Spectroscopic Properties of Cool Stars (SPOCS). I. 1040 F, G, and K Dwarfs from Keck, Lick, and AAT Planet Search Programs , 2005 .

[9]  Michael Shao,et al.  Long-Baseline Optical and Infrared Stellar Interferometry , 1992 .

[10]  K. Strassmeier,et al.  Photometric Variability in Chromospherically Active Stars. III. The Binary Stars , 1989 .

[11]  S. T. Ridgway,et al.  First Results from the CHARA Array. II. A Description of the Instrument , 2005 .

[12]  S. Udry,et al.  Local kinematics of K and M giants from CORAVEL/Hipparcos/Tycho-2 data: Revisiting the concept of superclusters , 2004, astro-ph/0409579.

[13]  E. K. Baines,et al.  First Results from the CHARA Array. I. An Interferometric and Spectroscopic Study of the Fast Rotator α Leonis (Regulus) , 2005 .

[14]  J. Percy.  THE PHOTOMETRIC VARIABILITY OF K GIANTS , 1993 .

[15]  C. G. Tinney,et al.  Catalog of nearby exoplanets , 2006 .

[16]  L. Girardi,et al.  Evolutionary tracks and isochrones for low- and intermediate-mass stars: From 0.15 to 7 , and from to 0.03 , 1999, astro-ph/9910164.

[17]  J. Munn,et al.  The USNO-B Catalog , 2002, astro-ph/0210694.

[18]  et al,et al.  The Palomar Testbed Interferometer , 1999 .

[19]  J. Valenti,et al.  The Planet-Metallicity Correlation , 2005 .

[20]  R. H. Brown,et al.  The effects of limb darkening on measurements of angular size with an intensity interferometer , 1974 .

[21]  Jason T. Wright,et al.  An Eccentric Hot Jupiter Orbiting the Subgiant HD 185269 , 2006, astro-ph/0608035.

[22]  I. Paris,et al.  Rotational velocities of A-type stars. III. Velocity distributions , 2006, astro-ph/0610785.

[23]  L. Colina,et al.  The 0.12-2.5 micron Absolute Flux Distribution of the Sun for Comparison With Solar Analog Stars , 1996 .

[24]  H. M. Dyck,et al.  Radii and Effective Temperatures for G, K, and M Giants and Supergiants , 1996 .

[25]  F. Ochsenbein,et al.  The VizieR database of astronomical catalogues , 2000, astro-ph/0002122.

[26]  John Scott Drilling,et al.  in Allen''''s Astrophysical Quantities , 2000 .

[27]  R. P. Butler,et al.  System Parameters of the Transiting Extrasolar Planet HD 209458b , 2005, astro-ph/0504579.

[28]  Brian D. Mason,et al.  The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog , 2001 .

[29]  F. V. Leeuwen,et al.  Hipparcos, the New Reduction of the Raw Data , 2007 .

[30]  S. Ridgway,et al.  ANGULAR DIAMETERS AND EFFECTIVE TEMPERATURES OF 25 K GIANT STARS FROM THE CHARA ARRAY , 2009, 0912.5491.

[31]  R. P. Butler,et al.  A Transiting “51 Peg-like” Planet , 2000, The Astrophysical journal.

[32]  S. Ridgway,et al.  CHARA Array Measurements of the Angular Diameters of Exoplanet Host Stars , 2008, 0803.1411.

[33]  S. T. Ridgway,et al.  First Results from the CHARA Array. IV. The Interferometric Radii of Low-Mass Stars , 2006, astro-ph/0602105.

[34]  J. Armstrong,et al.  The Navy Prototype Optical Interferometer , 1998 .

[35]  R. Paul Butler,et al.  Five New Multicomponent Planetary Systems , 2005 .

[36]  Kaspar von Braun,et al.  DIRECTLY DETERMINED LINEAR RADII AND EFFECTIVE TEMPERATURES OF EXOPLANET HOST STARS , 2009, 0901.1206.

[37]  Wm. A. Wheaton,et al.  Spectral Irradiance Calibration in the Infrared. XIV. The Absolute Calibration of 2MASS , 2003, astro-ph/0304350.

[38]  T. Mazeh,et al.  Four new wide binaries among exoplanet host stars , 2005, astro-ph/0507101.

[39]  Hiroyuki Mito,et al.  The IRSA 2MASS all-sky point source catalog , 2008 .