Guillermo Torres - Storming Media

Modeling Kepler Transit Light Curves as False Positives: Rejection of Blend Scenarios for Kepler-9, and Validation of Kepler-9 d, a Super-Earth-Size Planet in a Multiple System

20 Jan 2011

20 pages

Authors: Guillermo Torres; Francois Fressin; Natalie M Batalha; William J Borucki; Timothy M Brown; Stephen T Bryson; Lars A Buchhave; David Charbonneau; David R Ciardi; Edward W Dunham; CALIFORNIA INST OF TECHNOLOGY PASADENA CA JET PROPULSION LAB

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Light curves from the Kepler Mission contain valuable information on the nature of the phenomena producing the transit-like signals. To assist in exploring the possibility that they are due to an astrophysical false positive we describe a procedure (BLENDER) to model the photometry in terms of a blend rather than a planet orbiting a star. A blend may consist of a background or foreground eclipsing binary (or star-planet pair) whose ...

The Visual Orbit of the 1.1 Day Spectroscopic Binary Sigma2 Coronae Borealis From Interferometry at the Chara Array

01 Jan 2009

14 pages

Authors: Deepak Raghavan; Harold A McAlister; Guillermo Torres; David W Latham; Brian D Mason; Tabetha S Boyajian; Ellyn K Baines; Stephen J Williams; Theo A Brummelaar; Chris D Farrington; GEORGIA STATE UNIV ATLANTA CENTER FOR HIGH ANGULAR RESOLUTION ASTRONOMY

We present an updated spectroscopic orbit and a new visual orbit for the double-lined spectroscopic binary %2 Coronae Borealis (CrB) based on radial velocity measurements at the Oak Ridge Observatory in Harvard, MA and interferometer visibility measurements at the Center for High Angular Resolution Astronomy (CHARA) Array on Mount Wilson in California. sigma2 CrB is composed of two Sun-like stars of roughly equal mass in a circularized orbit with a ...