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Fundamental Properties of Low-Mass Stars and Brown Dwarfs
Michael C. Liu, Keivan G. Stassun, France Allard +7
Precise measurements of the fundamental properties of low-mass stars and brown dwarfs are key to understanding the physics underlying their formation and evolution. While there has…
Chemical Composition in the Globular Cluster M71 from Keck/HIRES Spectra of Turn-Off Stars
Ann Merchant Boesgaard, Jeremy R. King, Ann Marie Cody +2
We have made observations with the Keck I telescope and HIRES at a resolution of 45,000 of five nearly identical stars at the turn-off of the metal-rich globular cluster M 71…
Stellar Evolution with Enriched Surface Convection Zones I. General Effects of Planet Consumption
Ann Marie Cody, Dimitar Sasselov
Abundance analyses of stars with planets have revealed that their metallicities are enhanced relative to field stars. Such a trend was originally suggested to be due to accretion o…
Observations of the High-redshift Galaxy B2 0902+343 at 92cm
Ann Marie Cody, Robert Braun
We present 92cm observations of the high-redshift galaxy B2 0902+343 (z=3.40) with the Westerbork Synthesis Radio Telescope (WSRT). Twenty-one cm HI is detected in absorption, at a…
HD 209458: Physical Parameters of the Parent Star and the Transiting Planet
A. Cody, Dimitar D. Sasselov
The Sun-like star HD209458 harbors a close-in giant planet which transits across the star's disk, and thus allows an unprecedented access to the basic parameters of the planet, giv…