2022
DOI: 10.48550/arxiv.2202.07667
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A 16 au Binary in the Class 0 Protostar L1157 MMS

John J. Tobin,
Erin G. Cox,
Leslie W. Looney

Abstract: We present VLA observations toward the Class 0 protostar L1157 MMS at 6.8 mm and 9 mm with a resolution of ∼0. 04 (14 au). We detect two sources within L1157 MMS and interpret these sources as a binary protostar with a separation of ∼16 au. The material directly surrounding the binary system within the inner 50 au radius of the system has an estimated mass of 0.11 M , calculated from the observed dust emission. We interpret the observed binary system in the context of previous observations of its flattened env… Show more

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