Poster Open Access

Protostellar outflows mapped with ALMA and techniques to include short spacings

Plunkett, Adele


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    <subfield code="a">Protostellar outflows are early signs of star formation, yet in cluster environments -- common sites of star formation -- their role and interaction with surrounding gas are complicated.  Protostellar outflows are interesting and complex because they connect protostars (scales 10s au) to the surrounding gas environment (few pc), and their morphology constrains launching and/or accretion modes. A complete outflow study must use observing methods that recover several orders of magnitude of spatial scales, ideally with sub-arcsecond resolution and mapping over a few parsecs.  ALMA provides high-resolution observations of outflows, and in some cases outflows have been mapped in clusters.  Combining with observations using the Total Power array is possible, but challenging, and a large single dish telescope providing more overlap in uv space is advantageous.  In this presentation I show protostellar outflows observed with ALMA using 12m, 7m, and To  tal Power arrays.  With a new CASA tool TP2VIS we create total power ``visibility'' data and perform joint imaging and deconvolution of interferometry and single dish data.  TP2VIS will ultimately provide synergy between ALMA and AtLAST data.</subfield>
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