Spectroscopic signatures of infall in young protostellar systems

Christopher K Walker, Gopal Narayanan, Alan P. Boss

Research output: Contribution to journalArticle

67 Citations (Scopus)

Abstract

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.

Original languageEnglish (US)
Pages (from-to)767-782
Number of pages16
JournalAstrophysical Journal
Volume431
Issue number2
StatePublished - Aug 20 1994

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signatures
angular resolution
centroids
radiative transfer
dust
gases
gas
young
detection
calculation

Keywords

  • Binaries: general
  • Dust, extinction
  • Radiative transfer
  • Stars: formation
  • Stars: pre-main-sequence

ASJC Scopus subject areas

  • Space and Planetary Science

Cite this

Spectroscopic signatures of infall in young protostellar systems. / Walker, Christopher K; Narayanan, Gopal; Boss, Alan P.

In: Astrophysical Journal, Vol. 431, No. 2, 20.08.1994, p. 767-782.

Research output: Contribution to journalArticle

Walker, CK, Narayanan, G & Boss, AP 1994, 'Spectroscopic signatures of infall in young protostellar systems', Astrophysical Journal, vol. 431, no. 2, pp. 767-782.
Walker, Christopher K ; Narayanan, Gopal ; Boss, Alan P. / Spectroscopic signatures of infall in young protostellar systems. In: Astrophysical Journal. 1994 ; Vol. 431, No. 2. pp. 767-782.
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