48 citations · 128 across the 4 of their papers we have counts for
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A Census of Blue Stragglers in Gaia DR2 Open Clusters as a Test of Population Synthesis and Mass Transfer Physics
Emily M. Leiner, Aaron Geller
We use photometry and proper motions from Gaia DR2 to determine the blue straggler star (BSS) populations of 16 old (1-10 Gyr), nearby ( pc) open clusters. We find that th…
Stellar Radial Velocities in the Old Open Cluster M67 (NGC 2682). II. The Spectroscopic Binary Population
Aaron M. Geller, Robert D. Mathieu, David W. Latham +3
We present and analyse 120 spectroscopic binary and triple cluster members of the old (4 Gyr) open cluster M67 (NGC 2682). As a cornerstone of stellar astrophysics, M67 is a key cl…
WOCS 5379: Detailed Analysis of the Evolution of a Post-Mass-Transfer Blue Straggler
Meng Sun, Robert D. Mathieu, Emily M. Leiner +1
The blue-straggler binary WOCS 5379 is a member of the old (6-7 Gyr) open cluster NGC 188. WOCS 5379 comprises a blue straggler star with a white dwarf companion in a 120-day eccen…
The K2 M67 Study: Precise Mass for a Turnoff Star in the Old Open Cluster M67
Eric L. Sandquist, David W. Latham, Robert. D. Mathieu +8
We present a study of the bright detached eclipsing main sequence binary WOCS 11028 (Sanders 617) in the open cluster M67. Although the binary has only one eclipse per orbital cycl…
WIYN Open Cluster Study. LXXVII. Radial-Velocity Measurements and Spectroscopic Binary Orbits in the Open Cluster NGC 7789
Andrew C. Nine, Katelyn E. Milliman, Robert D. Mathieu +4
We introduce the stellar sample of the WIYN Open Cluster Study radial-velocity survey for the rich open cluster NGC 7789 (1.6 Gyr, [Fe/H] = +0.02). This sample lies within an 18…
Blue Lurkers: Hidden Blue Stragglers on the M67 Main Sequence Identified from their Kepler/K2 Rotation Periods
Emily Leiner, Robert D. Mathieu, Andrew Vanderburg +2
At an age of 4 Gyr, typical solar-type stars in M67 have rotation rates of 20-30 days. Using K2 Campaign 5 and 16 light curves and the spectral archive of the WIYN Open Cluster Stu…