2001A&A...378..495R


Query : 2001A&A...378..495R

2001A&A...378..495R - Astronomy and Astrophysics, volume 378, 495-508 (2001/11-1)

A single distance sample of molecular outflows from high-mass young stellar objects.

RIDGE N.A. and MOORE T.J.T.

Abstract (from CDS):

We have made 12CO 2–1 and 1–0 maps of eleven molecular outflows associated with intermediate to high-mass young stellar objects (YSOs) in order to establish whether the correlations between outflow parameters and source bolometric luminosity hold in the high-mass regime. It is important to consider the effects of Malmquist-type biases when looking at high-mass YSOs, as they are generally much more distant than their low mass counterparts. We therefore chose only objects located at ~2 kpc. We find that the relations show much more scatter than is seen in similar studies of low-mass YSOs. We also find that the mass-spectrum is significantly steeper in high-mass outflows, indicating a larger mass-fraction at lower velocities, a low collimation factor (~1–2) and no Hubble-like relationship.

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Journal keyword(s):

Simbad objects: 13

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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 - 2022
#notes
1 NAME W3 IRS 5 Y*O 02 25 40.54 +62 05 51.4           B1 339 0
2 HHL 5 HII 03 07 24.2 +58 30 45           ~ 146 0
3 GAL 174.20-00.08 Cld 05 30 45.9 +33 47 56           ~ 194 2
4 NGC 1985 RNe 05 37 47.8 +31 59 24           ~ 131 2
5 [KRL2007b] 236 AGN 17 20 21.81 -35 52 48.2           ~ 103 0
6 NAME NGC 6334-I Cl* 17 20 53.35 -35 47 01.5           ~ 307 0
7 2MASS J18191220-2047297 Y*O 18 19 12.21 -20 47 29.7           B1 127 0
8 SH 2-88 B HII 19 46 47.32920 +25 12 45.6230           ~ 155 2
9 IRAS 19550+3248 HII 19 56 56.0 +32 56 34           ~ 11 0
10 LBN 077.61+01.59 HII 20 20 39.3 +39 37 52           ~ 76 0
11 RAFGL 2591 Y*O 20 29 24.86688 +40 11 19.4100           ~ 595 0
12 NAME Cyg X FIR 33 Y*O 20 38 35.9 +42 37 22           B1.5 376 1
13 GRS G081.70 +00.50 SFR 20 39 01.6 +42 19 38           O4.5 1001 0

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2022.05.20-23:49:04

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