Christopher J. Dolan
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View article: WIYN OPEN CLUSTER STUDY. XXXVIII. STELLAR RADIAL VELOCITIES IN THE YOUNG OPEN CLUSTER M35 (NGC 2168)
WIYN OPEN CLUSTER STUDY. XXXVIII. STELLAR RADIAL VELOCITIES IN THE YOUNG OPEN CLUSTER M35 (NGC 2168) Open
We present 5201 radial-velocity measurements of 1144 stars, as part of an ongoing study of the young (150 Myr) open cluster M35 (NGC 2168). We have observed M35 since 1997, using the Hydra Multi-Object Spectrograph on the WIYN 3.5m telesco…
View article: WIYN Open Cluster Study. XVIII. The Tidal Circularization Cutoff Period of the Old Open Cluster NGC 188
WIYN Open Cluster Study. XVIII. The Tidal Circularization Cutoff Period of the Old Open Cluster NGC 188 Open
Based on a sample of 45 main-sequence solar-type spectroscopic binaries we find the tidal circularization cutoff in the open cluster NGC 188 (age 7 Gyr) to be well-defined at a period of 15.0 days. When compared to shorter tidal circulariz…
View article: A Photometric Study of the Young Stellar Population throughout the λ Orionis Star-Forming Region
A Photometric Study of the Young Stellar Population throughout the λ Orionis Star-Forming Region Open
We present VRI photometry of 320,917 stars with 11 < R < 18 throughout the lambda Orionis star-forming region. We statistically remove the field stars and identify a representative PMS population throughout the interior of the molecular ri…