2012A&A...540L..13X


C.D.S. - SIMBAD4 rel 1.7 - 2020.04.08CEST13:14:08

2012A&A...540L..13X - Astronomy and Astrophysics, volume 540, L13-13 (2012/4-1)

Outflow and accretion detections in the young stellar object IRAS 04579+4703.

XU J.-L., WANG J.-J. and QIN S.-L.

Abstract (from CDS):

We present Submillimeter Array observations of the young stellar object IRAS 04579+4703 in the 1.3mm continuum and in the 12CO (2-1), 13CO(2-1), and C18O(2-1) lines. The 1.3mm continuum image reveals a flattened structure with a mass of 13M. The 12CO (2-1) line map and position-velocity diagram, together with the broad wing (full width = 30km/s) of the 12CO (2-1) line, clearly show that there is an outflow motion, which originates from an embedded massive YSO in this region. The lengths of the blue-shifted and red-shifted lobes are 0.14pc and 0.13pc, respectively. The total gas mass, average dynamical timescale, and mass entrainment rate of the outflow are 1.8M, 1.7x104yr and 1.1x10–4M/yr, respectively. The flattened morphology of the continuum source perpendicular to the outflow direction, and the velocity gradient seen in the spectra of C18O (2-1) taken from different locations along the major axis of the continuum source, suggest that there is an accretion disk in this region.

Abstract Copyright:

Journal keyword(s): ISM: individual objects: IRAS 04579+4703 - ISM: kinematics and dynamics - ISM: molecules - stars: formation

Status at CDS:  

Simbad objects: 4

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Number of rows : 4

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 4C 50.11 QSO 03 59 29.74726473 +50 57 50.1615765           ~ 393 1
2 IRAS 04579+4703 Y*O 05 01 39.661 +47 07 21.92           ~ 42 0
3 6C 052928+482031 QSO 05 33 15.86578266 +48 22 52.8076620     19.90     ~ 93 1
4 3C 279 QSO 12 56 11.1664521013 -05 47 21.531840471   18.01 17.75 15.87   ~ 2670 2

    Equat.    Gal    SGal    Ecl

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2020.04.08-13:14:08

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