2016MNRAS.462.1444F

Query : 2016MNRAS.462.1444F

2016MNRAS.462.1444F - Mon. Not. R. Astron. Soc., 462, 1444-1452 (2016/October-3)

YSO jets in the Galactic plane from UWISH2 - III. Jets and outflows in Cassiopeia and Auriga.

FROEBRICH D. and MAKIN S.V.

Abstract (from CDS):

We present the analysis of 35.5 deg2 of images in the 1-0 S(1) line of H2 from the UK Widefield Infrared Survey for H2 (UWISH2) towards Cassiopeia and Auriga. We have identified 98 Molecular Hydrogen emission-line Objects (MHOs) driven by Young Stellar Objects, 60 per cent of which are bipolar outflows and all are new discoveries. We estimate that the UWISH2-extended emission object catalogue contains fewer than 2 per cent false positives and is complete at the 95 per cent level for jets and outflows brighter than the UWISH2 detection limit. We identified reliable driving source candidates for three quarters of the detected outflows, 40 per cent of which are associated with groups and clusters of stars. The driving source candidates are 20 per cent protostars, the remainder are Classical T-Tauri Stars. We also identified 15 new star cluster candidates near MHOs in the survey area. We find that the typical outflow identified in the sample has the following characteristics: the position angles are randomly orientated; bipolar outflows are straight within a few degrees; the two lobes are slightly asymmetrical in length and brightness; the length and brightness of the lobes are not correlated; typical time gaps between major ejections of material are 1-3 kyr, hence FU-Ori or EX-Ori eruptions are most likely not the cause of these, but we suggest MNors as a possible source. Furthermore, we find that outflow lobe length distributions are statistically different from the widely used total length distributions. There are a larger than expected number of bright outflows indicating that the flux distribution does not follow a power law.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: formation - stars: winds, outflows - ISM: individual: Galactic plane - ISM: jets and outflows - ISM: jets and outflows

VizieR on-line data: <Available at CDS (J/MNRAS/462/1444): tablea1.dat>

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 53

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Number of rows : 53
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 MHO 2984 EmO 03 22 37.8 +55 03 37           ~ 1 0
2 IRAS 03188+5452 MIR 03 22 38.13552 +55 03 39.8592           ~ 2 0
3 MHO 2985 EmO 03 22 38.3 +55 03 41           ~ 1 0
4 IRAS 03205+5501 HII 03 24 18.32 +55 12 09.5           ~ 3 0
5 MHO 2988 EmO 03 24 23.2 +55 12 37           ~ 1 0
6 MHO 2987 EmO 03 24 26.7 +55 12 37           ~ 1 0
7 MHO 2986 EmO 03 24 27.4 +55 12 11           ~ 1 0
8 IRAS 03226+5430 IR 03 26 27.1 +54 40 50           ~ 7 0
9 MHO 2995 EmO 03 26 28.0 +54 40 56           ~ 1 0
10 NAME AFGL 490-iki * 03 27 28.3 +58 54 09           ~ 9 1
11 MHO 2982 EmO 03 27 28.3 +58 54 12           ~ 1 0
12 2MASS J03315757+5538433 LP? 03 31 57.5706185044 +55 38 43.594481553           ~ 2 0
13 MHO 2997 EmO 03 31 58.4 +55 38 45           ~ 1 0
14 IRAS 03281+5528 IR 03 31 59.7 +55 38 44           ~ 2 0
15 MHO 3701 EmO 03 33 08.2 +55 10 18           ~ 1 0
16 MHO 3702 EmO 03 33 08.4 +55 10 32           ~ 1 0
17 MSX6C G144.6678-00.7136 Y*O 03 33 09.8 +55 10 54           ~ 5 0
18 MHO 3700 EmO 03 33 10.5 +55 10 05           ~ 1 0
19 IRAS 03412+5422 FIR 03 45 07.9 +54 31 59           ~ 2 0
20 MHO 3707 EmO 03 45 10.7 +54 31 37           ~ 1 0
21 NGC 1491 HII 04 03 15.9 +51 18 54           ~ 117 0
22 MHO 1068 EmO 04 03 20.2 +51 29 08           ~ 1 0
23 MHO 1070 EmO 04 04 02.5 +51 22 42           ~ 1 0
24 2MASX J04041342+5122587 G 04 04 13.4464505640 +51 22 58.539784476           ~ 11 0
25 MHO 1073 EmO 04 04 20.1 +51 23 29           ~ 1 0
26 MHO 1074 EmO 04 04 22.4 +51 23 48           ~ 1 0
27 MHO 1092 EmO 04 05 26.7 +49 39 09           ~ 1 0
28 MHO 1093 EmO 04 05 27.0 +49 39 03           ~ 1 0
29 LEDA 2348913 G 04 05 27.1 +49 38 12           ~ 6 0
30 MHO 1094 EmO 04 05 27.3 +49 39 06           ~ 1 0
31 LEDA 14457 G 04 05 56.574 +51 27 05.25   18.5       ~ 7 0
32 MHO 1078 EmO 04 05 56.6 +51 27 05           ~ 1 0
33 MHO 1087 EmO 04 06 32.7 +50 30 27           ~ 1 0
34 MHO 1085 EmO 04 06 55.1 +50 29 47           ~ 1 0
35 IRAS 04037+5022 IR 04 07 31.3 +50 30 37           ~ 3 0
36 MHO 1081 EmO 04 07 36.5 +51 15 56           ~ 1 0
37 IRAS 04040+5107 IR 04 07 50.5 +51 15 34           ~ 2 0
38 MHO 1071 EmO 04 08 02.5 +52 22 42           ~ 1 0
39 MHO 1072 EmO 04 08 02.5 +52 22 42           ~ 1 0
40 MHO 1090 EmO 04 08 07.0 +50 31 25           ~ 1 0
41 MHO 1091 EmO 04 08 10.4 +50 31 20           ~ 1 0
42 IRAS 04045+5023 IR 04 08 15.7 +50 31 18           ~ 2 0
43 MHO 1096 EmO 04 13 21.1 +50 03 18           ~ 1 0
44 NAME Auriga reg 04 20 00.0 +38 05 00           ~ 238 0
45 MHO 1099 EmO 04 21 52.2 +50 36 23           ~ 1 0
46 IRAS 04181+5029 FIR 04 21 53 +50 36.3           ~ 2 0
47 MHO 1097 EmO 04 22 16.4 +50 34 18           ~ 1 0
48 MHO 1098 EmO 04 22 18.0 +50 34 08           ~ 1 0
49 NAME Ori A MoC 05 38 -07.1           ~ 3187 0
50 NAME Serpens Cloud SFR 18 29 49 +01 14.8           ~ 1195 1
51 NAME Aql Region reg 18 31.1 -02 10           ~ 456 0
52 NAME Cyg X Cld 20 30 04.7973633 +40 51 36.002197           ~ 962 1
53 NAME Cas Region reg ~ ~           ~ 33 0

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