2012ApJ...745L..10T


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.16CEST14:09:31

2012ApJ...745L..10T - Astrophys. J., 745, L10 (2012/January-3)

The discovery of the youngest molecular outflow associated with an intermediate-mass protostellar core, MMS-6/OMC-3.

TAKAHASHI S. and HO P.T.P.

Abstract (from CDS):

We present subarcsecond resolution HCN (4-3) and CO (3-2) observations made with the Submillimeter Array, toward an extremely young intermediate-mass protostellar core, MMS 6-main, located in the Orion Molecular Cloud 3 region (OMC-3). We have successfully imaged a compact molecular outflow lobe (~1000 AU) associated with MMS 6-main, which is also the smallest molecular outflow ever found in the intermediate-mass protostellar cores. The dynamical timescale of this outflow is estimated to be ≤ 100 yr. The line width dramatically increases downstream at the end of the molecular outflow (Δv ∼ 25 km/s) and clearly shows the bow-shock-type velocity structure. The estimated outflow mass (~10–4 M) and outflow size are approximately two to four orders and one to three orders of magnitude smaller, respectively, while the outflow force (~10–4 M km/s/yr) is similar, compared to the other molecular outflows studied in OMC-2/3. These results show that MMS 6-main is a protostellar core at the earliest evolutionary stage, most likely shortly after the second core formation.

Abstract Copyright:

Journal keyword(s): ISM: individual: OMC3-MMS 6 - ISM: jets and outflows - ISM: molecules - stars: evolution

Simbad objects: 11

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Number of rows : 11

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 2MASS J04321606+1812464 TT* 04 32 16.0655428266 +18 12 46.383508261   19.20 17.595     M6.5 74 0
2 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 3679 0
3 M 42 HII 05 35 17.3 -05 23 28           ~ 3787 0
4 OMC 3 MoC 05 35 20.0 -05 01 00           ~ 234 1
5 [THT2009] MMS 6-main mm 05 35 23.420 -05 01 30.54           ~ 5 0
6 [TSO2008] 14 mm 05 35 23.420 -05 01 30.35           ~ 60 0
7 OMC 2 MoC 05 35 27 -05 10.1           ~ 404 1
8 [GY92] 204 TT* 16 27 06.5924723987 -24 41 48.883697790       17.57 15.43 M5 86 0
9 LDN 1157 DNe 20 39 06.4 +68 02 13           ~ 505 0
10 NAME LDN 1014 IRS Y*O 21 24 07.58 +49 59 08.9           ~ 76 0
11 3C 454.3 Bla 22 53 57.74798 +16 08 53.5611   16.57 16.10 15.22   ~ 2565 2

    Equat.    Gal    SGal    Ecl

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2021.04.16-14:09:31

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