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- Center for Astrophysics Harvard & SmithsonianUS325 papers
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25 papers · 2 filters
A High Angular Resolution Survey of Massive Stars in Cygnus OB2: Results from the Hubble Space Telescope Fine Guidance Sensors
Saida M. Caballero-Nieves, Edmund P. Nelan, Douglas R. Gies +8
We present results of a high angular resolution survey of massive OB stars in the Cygnus OB2 association that we conducted with the Fine Guidance Sensor 1R (FGS1r) on the Hubble Sp…
Stellar Diameters and Temperatures IV. Predicting Stellar Angular Diameters
Tabetha Boyajian, Gerard van Belle, Kaspar von Braun
The number of stellar angular diameter measurements has greatly increased over the past few years due to innovations and developments in the field of long baseline optical interfer…
Statistical Searches for Microlensing Events in Large, Non-Uniformly Sampled Time-Domain Surveys: A Test Using Palomar Transient Factory Data
Adrian M. Price-Whelan, Marcel A. Agüeros, Amanda P. Fournier +7
Many photometric time-domain surveys are driven by specific goals, such as searches for supernovae or transiting exoplanets, which set the cadence with which fields are re-imaged.…
Predicting Stellar Angular Sizes
Kaspar von Braun, Tabetha S. Boyajian, Gerard T. van Belle
Our survey of long-baseline infrared and optical interferometry measurements is producing considerable numbers of directly determined stellar angular sizes. We use our sample of 12…
Near-infrared Metallicities, Radial Velocities and Spectral Types for 447 Nearby M Dwarfs
Elisabeth R. Newton, David Charbonneau, Jonathan Irwin +4
We present metallicities, radial velocities and near-infrared spectral types for 447 M dwarfs determined from moderate resolution (R~2000) near-infrared (NIR) spectra obtained with…
Orbital Parameters for the Two Young Binaries VSB 111 and VSB 126
Nicole Karnath, Lisa Prato, Larry Wasserman +3
We report orbital parameters for two low-mass, pre-main sequence, double-lined spectroscopic binaries VSB 111 and VSB 126. These systems were originally identified as single-lined…