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An ALMA search for substructure and fragmentation in starless cores in Orion B North
Samuel Fielder, Helen Kirk, Michael Dunham +1
We present Atacama Large Millimeter/submillimeter Array (ALMA) Cycle 3 observations of 73 starless and protostellar cores in the Orion B North molecular cloud. We detect a total of…
Evolution and Kinematics of Protostellar Envelopes in the Perseus Molecular Cloud
Daniel J. Heimsoth, Ian W. Stephens, Hector G. Arce +3
We present a comprehensive analysis on the evolution of envelopes surrounding protostellar systems in the Perseus molecular cloud using data from the MASSES survey. We focus our at…
Kinematic Analysis of a Protostellar Multiple System: Measuring the Protostar Masses and Assessing Gravitational Instability in the Disks of L1448 IRS3B and L1448 IRS3A
Nickalas K. Reynolds, John J. Tobin, Patrick D. Sheehan +7
We present new Atacama Large Millimeter/submillimeter Array (ALMA) observations towards a compact (230~au separation) triple protostar system, L1448 IRS3B, at 879~\micron with \con…
Detection of a Disk Surrounding the Variably Accreting Young Star HBC722
Xi Yek, Michael M. Dunham, Héctor G. Arce +5
We present new ALMA 233 GHz continuum observations of the FU Orionis Object HBC722. With these data we detect HBC722 at millimeter wavelengths for the first time, use this detectio…
Star-Gas Surface Density Correlations in Twelve Nearby Molecular Clouds I: Data Collection and Star-Sampled Analysis
Riwaj Pokhrel, Robert A. Gutermuth, Sarah K. Betti +15
We explore the relation between the stellar mass surface density and the mass surface density of molecular hydrogen gas in twelve nearby molecular clouds that are located at 1.5…
The CARMA-NRO Orion Survey: Protostellar Outflows, Energetics, and Filamentary Alignment
Jesse R. Feddersen, Héctor G. Arce, Shuo Kong +7
We identify 45 protostellar outflows in CO maps of the Orion A giant molecular cloud from the CARMA-NRO Orion survey. Our sample includes 11 newly detected outflows. We measure the…