Spectroscopic signatures of infall in young protostellar systems

Christopher K. Walker; Gopal Narayanan; Alan P. Boss

doi:10.1086/174528

Spectroscopic signatures of infall in young protostellar systems

Christopher K. Walker, Gopal Narayanan, Alan P. Boss

Research output: Contribution to journal › Article › peer-review

69 Scopus citations

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 language	English (US)
Pages (from-to)	767-782
Number of pages	16
Journal	Astrophysical Journal
Volume	431
Issue number	2
DOIs	https://doi.org/10.1086/174528
State	Published - Aug 20 1994

Keywords

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

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/174528

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keywords = "Binaries: general, Dust, extinction, Radiative transfer, Stars: formation, Stars: pre-main-sequence",

author = "Walker, {Christopher K.} and Gopal Narayanan and Boss, {Alan P.}",

year = "1994",

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T1 - Spectroscopic signatures of infall in young protostellar systems

AU - Walker, Christopher K.

AU - Narayanan, Gopal

AU - Boss, Alan P.

PY - 1994/8/20

Y1 - 1994/8/20

N2 - 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.

AB - 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.

KW - Binaries: general

KW - Dust, extinction

KW - Radiative transfer

KW - Stars: formation

KW - Stars: pre-main-sequence

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SP - 767

EP - 782

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

ER -

Spectroscopic signatures of infall in young protostellar systems

Abstract

Keywords

ASJC Scopus subject areas

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