1.7k citations · 2.7k across the 14 of their papers we have counts for
15 papers
A Significant Population of Candidate New Members of the Rho Ophiuchi Cluster
Mary Barsony, Karl E. Haisch, Kenneth A. Marsh +1
We present a general method for identifying the pre-main-sequence population of any star-forming region, unbiased with respect to the presence or absence of disks, in contrast to s…
A Methane Imaging Survey for T Dwarf Candidates in Rho Ophiuchi
K. E. Haisch, M. Barsony, C. Tinney
We report the results of the first deep, wide-field, near-infrared methane imaging survey of the Rho Ophiuchi cloud core to search for T dwarfs. Among the 6587 objects detected, 22…
First Evidence of a Precessing Jet Excavating a Protostellar Envelope
Jason E. Ybarra, Mary Barsony, Karl E. Haisch +3
We present new, sensitive, near-infrared images of the Class I protostar, Elias 29, in the Ophiuchus cloud core. To explore the relationship between the infall envelope and the out…
New observational frontiers in the multiplicity of young stars
G. Duchene, E. Delgado-Donate, K. Haisch +2
It has now been known for over a decade that low-mass stars located in star-forming regions are very frequently members of binary and multiple systems, even more so than main seque…
A Near-Infrared Multiplicity Survey of Class I/Flat-Spectrum Systems in Six Nearby Molecular Clouds
Karl E. Haisch, Thomas P. Greene, Mary Barsony +1
We present new near-IR observations of 76 Class I/flat-spectrum objects in the nearby (d < 320 pc) Perseus, Taurus, Chamaeleon I and II, rho Ophiuchi, and Serpens dark clouds. Thes…
Close Companions to Nearby Young Stars from Adaptive Optics Imaging on VLT and Keck
Karl E. Haisch, Ray Jayawardhana, Alexis Brandeker +1
We report the results of VLT and Keck adaptive optics surveys of known members of the Eta Chamaeleontis, MBM 12, and TW Hydrae (TWA) associations to search for close companions. Th…