Spitzer-IRS observations of water-line emission in protostars

Details Spitzer-IRS observations of water-line emission in protostars Spitzer-IRS observations of water-line emission in protostars

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sptz.prop40778w&link_type=abstract

Spitzer Proposal ID #40778

Computer Science

Scientific paper

Recently, with Spitzer-IRS, we detected a rich mid-infrared emission-line spectrum from water in the Class 0 protostar NGC 1333-IRAS4B, that we showed to originate in a very dense, warm, solar-system-size region deeply embedded in the protostar?s envelope. We have interpreted the emission to arise in a disk accretion shock, and thus to reveal for the first time a long-sought view of the process of assembly of protoplanetary disks. Here we propose to follow up this discovery with more detailed observations of IRAS4B and its companion protostar IRAS4A, to search for more examples of this phenomenon among a sample of protostars selected for face-on view, and to apply more sophisticated models to determine the details of the structure, chemistry and evolution of the youngest protoplanetary disks.

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