4 papers · 1 filter
The Montreal Open Clusters and Associations (MOCA) Database: A Census of Nearby Associations, Open Clusters, and Young Substellar Objects within 500 pc of the Sun
Jonathan Gagné, Leslie Moranta, Jacqueline K. Faherty +10
We present the Montreal Open Clusters and Associations database (MOCAdb), a public MySQL database with a Python interface. MOCAdb provides a census of memberships for 10259 associa…
GALEX UV survey of magnetic chemically peculiar stars in the Kepler prime field
Emanuele Bertone, Stefan Hümmerich, Miguel Chávez +8
Magnetic chemically peculiar (mCP) stars are strongly magnetic upper main-sequence stars that exhibit light rotational variability due to an uneven surface distribution of certain…
SDSS J100711.74+193056.2: A Candidate Common Motion Substellar Companion to the Nearest B-Type Star Regulus
Eric E. Mamajek, Adam J. Burgasser
The L9 dwarf SDSS J100711.74+193056.2 is situated 7.5 north of the nearest B-type star Regulus (d = 24.3+-0.2 pc), part of a stellar quadruplet. The object is at similar…
Extending the ALMA Census of Circumstellar Disks in the Upper Scorpius OB Association
John M. Carpenter, Taran L. Esplin, Kevin L. Luhman +2
We present ALMA Band 7 continuum (340 GHz) and CO J=3-2 observations for an extended sample of disks in the Upper Scorpius OB Association (Upper Sco, age ~ 10 Myr). The targets wer…