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Spectroscopic Observations of the Galex Nearby Young Star Survey Sample. 1. Nearby Moving Group Candidates
Navya Nagananda, Laura Vican, Ben Zuckerman +3
The GALEX Nearby Young Star Search (GALNYSS) yielded the identification of more than 2000 late-type stars that, based on their ultraviolet and infrared colors and pre-Gaia proper m…
SONS: The JCMT legacy survey of debris discs in the submillimetre
Wayne S. Holland, Brenda C. Matthews, Grant M. Kennedy +32
Debris discs are evidence of the ongoing destructive collisions between planetesimals, and their presence around stars also suggests that planets exist in these systems. In this pa…
Constraining X-ray-Induced Photoevaporation of Protoplanetary Disks Orbiting Low-Mass Stars
Kristina M. Punzi, Joel H. Kastner, David Rodriguez +2
Low-mass, pre-main sequence stars possess intense high-energy radiation fields as a result of their strong stellar magnetic activity. This stellar UV and X-ray radiation may have a…
Accretion and OH Photodissociation at a Nearby T Tauri System in the beta Pictoris Moving Group
B. Zuckerman, Laura Vican, David R. Rodriguez
We present spectra of an M-type, binary star system (LDS 5606) that belongs to the nearby ~20 Myr old beta Pictoris moving group. Both stars are very dusty; the dustier member disp…
A Dusty M5 Binary in the beta Pictoris Moving Group
David R. Rodriguez, B. Zuckerman, Jacqueline K. Faherty +1
We report the identification of a new wide separation binary (LDS 5606) in the ~20 Myr-old beta Pic moving group. This M5+M5 pair has a projected separation of 26'', or ~1700 AU at…
The Evolution of Dusty Debris Disks Around Solar Type Stars
Laura Vican, Adam Schneider
We used chromospheric activity to determine the ages of 2,820 field stars.. We searched these stars for excess emission at 22 um with the Wide-Field Infrared Survey Explorer. Such…
Alignment in star-debris disc systems seen by Herschel
J. S. Greaves, G. M. Kennedy, N. Thureau +28
Many nearby main-sequence stars have been searched for debris using the far-infrared Herschel satellite, within the DEBRIS, DUNES and Guaranteed-Time Key Projects. We discuss here…
Young Stars Near Earth: The Octans-Near Association and Castor Moving Group
Ben Zuckerman, Laura Vican, Inseok Song +1
All cataloged stellar moving groups and associations with ages <100 Myr and within 100 pc of Earth have Galactic space motions (UVW) situated in a "good box" with dimensions ~20 km…
The GALEX Nearby Young-Star Survey
David R. Rodriguez, B. Zuckerman, Joel H. Kastner +3
We describe a method that exploits data from the GALEX ultraviolet and WISE and 2MASS infrared source catalogs, combined with proper motions and empirical pre-main sequence isochro…
Age Determination for 346 Nearby Stars in the Herschel DEBRIS Survey
Laura Vican
DEBRIS is a flux-limited survey of nearby stars (spectral types A-M) for evidence of debris disks with the Herschel Space Observatory. One goal of the survey is to determine disk i…
Rapid Oscillations in Cataclysmic Variables. XVII. 1RXS J070407+262501
J. Patterson, J. R. Thorstensen, H. A. Sheets +10
We present a study of the recently discovered intermediate polar 1RXS J070407+262501, distinctive for its large-amplitude pulsed signal at P = 480 s. Radial velocities indicate an…