2006A&A...447..655W


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.17CEST16:19:35

2006A&A...447..655W - Astronomy and Astrophysics, volume 447, 655-665 (2006/2-4)

Bispectrum speckle interferometry of the massive protostellar outflow source IRAS 23151+5912.

WEIGELT G., BEUTHER H., HOFMANN K.-H., MEYER M.R., PREIBISCH T., SCHERTL D., SMITH M.D. and YOUNG E.T.

Abstract (from CDS):

We present bispectrum speckle interferometry of the massive protostellar object IRAS 23151+5912 in the near-infrared K' band. The reconstructed image shows the diffuse nebulosity north-east of two point-like sources in unprecedented detail. The comparison of our near-infrared image with mm continuum and CO molecular line maps shows that the brighter of the two point sources lies near the center of the mm peak, indicating that it is a high-mass protostar. The nebulosity coincides with the blue-shifted molecular outflow component. The most prominent feature in the nebulosity is a bow-shock-like arc. We assume that this feature is associated with a precessing jet which has created an inward-pointed cone in the swept-up material. We present numerical jet simulations that reproduce this and several other features observed in our speckle image of the nebulosity. Our data also reveal a linear structure connecting the central point source to the extended diffuse nebulosity. This feature may represent the innermost part of a jet that drives the strong molecular outflow (PA∼80°) from IRAS 23151+5912. With the aid of radiative transfer calculations, we demonstrate that, in general, the observed inner structures of the circumstellar material surrounding high-mass stars are strongly influenced by the orientation and symmetry of the bipolar cavity.

Abstract Copyright:

Journal keyword(s): techniques: interferometric - stars: formation

Nomenclature: Fig.1: [WBH2006] IRS N (Nos 1-2).

CDS comments: The extendend diffuse nebulosity in IRAS 23151+5912 = [CY2004] NIRS 19 in SIMBAD.

Simbad objects: 13

goto Full paper

goto View the reference in ADS

Number of rows : 13

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 NAME Mon R2 IRS 3 Y*O 06 07 47.8 -06 22 55           ~ 132 0
2 NAME K 3-50A HII 20 01 45.6 +33 32 42           ~ 73 0
3 RAFGL 2591 Y*O 20 29 25.2650 +40 11 26.532   18       ~ 562 5
4 NAME Cep Region reg 21 20 00.0 +72 30 00           ~ 92 0
5 NAME SH 2-140 IRS 1 Y*O 22 19 18.277 +63 18 45.82           ~ 190 0
6 NAME SH 2-140 IRS 3 IR 22 19 19.853 +63 18 48.07           ~ 46 0
7 HD 240212 PM* 23 10 42.8502107032 +59 00 01.762276578   10.13 9.16     G5 5 0
8 LBN 111.14-00.72 HII 23 16 07 +60 02.5           ~ 90 1
9 IRAS 23151+5912 HII 23 17 21.0 +59 28 49           ~ 90 0
10 2MASS J23172102+5928480 NIR 23 17 21.020 +59 28 48.01           ~ 4 1
11 2MASS J23172157+5928495 IR 23 17 21.57 +59 28 49.6           ~ 1 0
12 [WBH2006] IRS 2 NIR ~ ~           ~ 3 0
13 [WBH2006] IRS 1 NIR ~ ~           ~ 4 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2006A&A...447..655W and select 'bookmark this link' or equivalent in the popup menu


2019.10.17-16:19:35

© Université de Strasbourg/CNRS

    • Contact