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VLA and CARMA Observations of Protostars in the Cepheus Clouds: Sub-arcsecond Proto-Binaries Formed via Disk Fragmentation
John J. Tobin, Claire J. Chandler, David J. Wilner +8
We present observations of three Class 0/I protostars (L1157-mm, CB230 IRS1, and L1165-SMM1) using the Karl G. Jansky Very Large Array (VLA) and observations of two (L1165-SMM1 and…
Earliest Stages of Protocluster Formation: Substructure and Kinematics of Starless Cores in Orion
Katherine I. Lee, Leslie W. Looney, Scott Schnee +1
We study the structure and kinematics of nine 0.1 pc-scale cores in Orion with the IRAM 30-m telescope and at higher resolution eight of the cores with CARMA, using CS(2-1) as the…
Modeling the Resolved Disk Around the Class 0 Protostar L1527
John J. Tobin, Lee Hartmann, Hsin-Fang Chiang +5
We present high-resolution sub/millimeter interferometric imaging of the Class 0 protostar L1527 IRS (IRAS 04368+2557) at 870 micron and 3.4 mm from the Submillimeter Array (SMA) a…
Alignment Between Flattened Protostellar Infall Envelopes and Ambient Magnetic Fields
Nicholas L. Chapman, Jacqueline A. Davidson, Paul F. Goldsmith +10
We present 350 micron polarization observations of four low-mass cores containing Class 0 protostars: L483, L1157, L1448-IRS2, and Serp-FIR1. This is the second paper in a larger s…
Resolved Depletion Zones and Spatial Differentiation of N2H+ and N2D+
John J. Tobin, Edwin A. Bergin, Lee Hartmann +6
We present a study on the spatial distribution of N2D+ and N2H+ in thirteen protostellar systems. Eight of thirteen objects observed with the IRAM 30m telescope show relative offse…