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Dust Polarization Toward Embedded Protostars in Ophiuchus with ALMA. II. IRAS 16293-2422
Sarah I. Sadavoy, Philip C. Myers, Ian W. Stephens +6
We present high-resolution (~ 35 au) ALMA Band 6 1.3 mm dust polarization observations of IRAS 16293. These observations spatially resolve the dust polarization across the two prot…
Gaia-DR2 confirms VLBA parallaxes in Ophiuchus, Serpens and Aquila
Gisela N. Ortiz-León, Laurent Loinard, Sergio A. Dzib +9
We present Gaia-DR2 astrometry of a sample of YSO candidates in Ophiuchus, Serpens Main and Serpens South/W40 in the Aquila Rift, which had been mainly identified by their infrared…
The Formation Conditions of the Wide Binary Class 0 Protostars within BHR 71
John Tobin, Tyler Bourke, Stacy Mader +7
We present a characterization of the binary protostar system that is forming within a dense core in the isolated dark cloud BHR71. The pair of protostars, IRS1 and IRS2, are both i…
Science with an ngVLA: Exploring Protostellar Disk Formation with the ngVLA
John Tobin, Patrick Sheehan, Doug Johnstone +1
The formation and evolution of disks early in the protostellar phase is an area of study in which the ngVLA is poised to make significant breakthroughs. The high-sensitivity and re…
Science with an ngVLA: New Frontiers in Protostellar Multiplicity with the ngVLA
John Tobin, Patrick Sheehan, Doug Johnstone
The ngVLA will enable significant advances in our understanding of the formation and evolution of multiple star systems in the protostellar phase, building upon the breakthroughs e…
The VLA/ALMA Nascent Disk and Multiplicity (VANDAM) Survey of Perseus Protostars. VI. Characterizing the Formation Mechanism for Close Multiple Systems
John J. Tobin, Leslie W. Looney, Zhi-Yun Li +8
We present Atacama Large Millimeter/submillimeter Array (ALMA) observations of multiple protostar systems in the Perseus molecular cloud previously detected by the Karl G. Jansky V…