Spectroscopic signatures of infall in young protostellar systems

Details Spectroscopic signatures of infall in young protostellar systems Spectroscopic signatures of infall in young protostellar systems

Aug 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...431..767w&link_type=abstract

The Astrophysical Journal, vol. 431, no. 2, pt. 1, p. 767-782

Astronomy and Astrophysics

Astrophysics

60

Emission Spectra, Gravitational Collapse, Line Spectra, Molecular Spectra, Pre-Main Sequence Stars, Radiative Transfer, Spectral Signatures, Star Formation, Abundance, Angular Resolution, Cosmic Dust, Cosmology, Spectrum Analysis, Stellar Evolution, Velocity Distribution

Scientific paper

We present the first radiative transfer calculations of millimeter and submillimeter molecular line emission from 'self-consistent' models of nonspherical, collapsing, rotating protostellar systems. We find that: (1) the morphology of the gas and dust emission is a strong function of collapse time and angular resolution, (2) centroid velocity maps can provide a distinct infall signature, and (3) the unambiguous detection of infall toward binary systems becomes more difficult with increasing binary separation.

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