Molecular CO outflows in the L1641-N cluster: kneading a cloud core

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dc.creatorStanke, Thomas
dc.creatorWilliams, Jonathan P.
dc.date2006-11-02
dc.date.accessioned2026-07-07T11:20:38Z
dc.date.available2026-07-07T11:20:38Z
dc.descriptionWe present results of 1.3mm interferometric and single-dish observations of the center of the L1641-N cluster in Orion. Single-dish wide-field continuum and CO(2-1) observations reveal the presence of several molecular outflows driven by deeply embedded protostellar sources. At higher angular resolution, the dominant millimeter source in the cluster center is resolved into a pair of protostars (L1641-N-MM1 and MM3), each driving a collimated outflow, and a more extended, clumpy core. Low-velocity CO line-wing emission is widely spread over much of the cluster area. We detect and map the distribution of several other molecular transitions (13CO, C18O, 13CS, SO, CH3OH, CH3CN, and OCS). CH3CN and OCS may indicate the presence of a hot corino around L1641-N-MM1. We tentatively identify a velocity gradient over L1641-N-MM1 in CH3CN and OCS, oriented roughly perpendicular to the outflow direction, perhaps indicative of a circumstellar disk. An analysis of the energy and momentum load of the CO outflows, along with the notion that apparently a large volume fraction is affected by the multiple outflow activity, suggests that outflows from a population of low-mass stars might have a significant impact on clustered (and potentially high-mass) star formation.
dc.description16 pages plus 10 figures accepted by AJ, full resolution version available at http://www.eso.org/~tstanke/preprints.html
dc.identifierhttps://arxiv.org/abs/astro-ph/0611052
dc.identifierhttp://arxiv.org/abs/astro-ph/0611052
dc.identifierAstron.J.133:1307-1320,2007
dc.identifierdoi:10.1086/510619
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/194019
dc.subjectAstrophysics
dc.titleMolecular CO outflows in the L1641-N cluster: kneading a cloud core
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