2010A&A...523A..29D


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.21CEST08:45:20

2010A&A...523A..29D - Astronomy and Astrophysics, volume 523, A29-29 (2010/11-2)

Wide field CO J = 3 -> 2 mapping of the Serpens cloud core.

DIONATOS O., NISINI B., CODELLA C. and GIANNINI T.

Abstract (from CDS):

Outflows provide indirect means to gain insight into diverse star formation-associated phenomena. At the level of individual protostellar cores, both outflows and the intrinsic core properties can be used to study the mass accretion/ejection process of heavily embedded protostellar sources. The main objective of the paper is to study the overall outflow distribution and its association with the young population of the Serpens Core cluster. In addition, the paper addresses the correlation of the outflow momentum flux with the bolometric luminosity of their driving sources using this homogeneous dataset for a single star-forming site. An area comprising 460''x230'' of the Serpens cloud core was mapped in 12CO J=3->2 with the HARP-B heterodyne array at the James Clerk Maxwell Telescope; J=3->2 observations are more sensitive tracers of hot outflow gas than lower J CO transitions; combined with the high sensitivity of the HARP-B receptors outflows are sharply outlined, enabling their association with individual protostellar cores. Most of ∼20 observed outflows are found to be associated with known protostellar sources in bipolar or unipolar configurations. All but two outflow/core pairs in our sample tend to have a projected orientation spanning roughly NW-SE. The overall momentum driven by outflows in Serpens lies between 3.2 and 5.1x10–1Mkm/s, the kinetic energy from 4.3 to 6.7x1043erg, and momentum flux is between 2.8 and 4.4x10–4Mkm/s/yr. Bolometric luminosities of protostellar cores based on Spitzer photometry are found up to an order of magnitude lower than previous estimations derived with IRAS/ISO data. We confirm the validity of the existing correlations between the momentum flux and bolometric luminosity of Class I sources for the homogenous sample of Serpens, though we suggest that they should be revised by a shift to lower luminosities. All protostars classified as Class 0 sources stand well above the known Class I correlations, indicating a decline in momentum flux between the two classes.

Abstract Copyright:

Journal keyword(s): stars: formation - ISM: jets and outflows - ISM: molecules - submillimeter: ISM

CDS comments: Table 2 outflows not in SIMBAD.

Simbad objects: 29

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Number of rows : 29

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 LDN 1448NA smm 03 25 36.49 +30 45 22.2           ~ 170 1
2 SSTc2d J032536.4+304522 Y*O 03 25 36.49 +30 45 22.2           ~ 184 1
3 NAME LDN 1448-mm Y*O 03 25 38.83 +30 44 06.2           ~ 293 0
4 [SDA2014] West4 Y*O 03 25 38.83 +30 44 06.2           ~ 241 1
5 NAME Perseus Cloud SFR 03 35.0 +31 13           ~ 1007 0
6 VSSG 30 Y*O 16 26 44.19504 -24 34 48.3492           ~ 123 0
7 YLW 45 Y*O 16 27 39.82824 -24 43 15.0672           ~ 102 0
8 [JJK2008] SMM J162740-24431 smm 16 27 39.90 -24 43 13.2           ~ 74 0
9 NAME Ophiuchus Molecular Cloud SFR 16 28 06 -24 32.5           ~ 2929 0
10 SH 2-68 N Y*O 18 29 48.09 +01 16 45.0           ~ 96 1
11 NAME Serpens Cloud SFR 18 29 49 +01 14.8           ~ 882 2
12 NAME SH 2-68 FIR 1 cor 18 29 49.63 +01 15 21.9           ~ 230 2
13 SSTc2d J182949.6+011456 Y*O 18 29 49.70 +01 14 56.7           ~ 14 0
14 V* V371 Ser Y*O 18 29 51.212 +01 16 39.49           ~ 88 1
15 NAME Serpens SMM 10 IR Y*O 18 29 52.20 +01 15 47.6           ~ 40 1
16 NAME Ser Nebula RNe 18 29 56 +01 14.8           ~ 29 1
17 HBC 672 Em* 18 29 56.8828626544 +01 14 46.339137067   17.6       K8.0 98 0
18 NAME Serpens SMM 4 cor 18 29 57.1 +01 13 15           ~ 119 0
19 2MASS J18295773+0114056 Y*O 18 29 57.737 +01 14 05.69           M4: 123 2
20 2MASS J18295876+0114257 Y*O 18 29 58.765 +01 14 25.78           ~ 24 1
21 GCNM 115 Y*O 18 29 59.02 +01 12 24.9           ~ 13 0
22 [GFM2007] 61 Y*O 18 29 59.61 +01 14 12.3           ~ 5 0
23 NAME SERPENS SMM 3 smm 18 29 59.7 +01 14 00           ~ 82 1
24 SSTc2d J182959.9+011311 Y*O 18 29 59.92 +01 13 11.6           ~ 15 1
25 [CED93] 2 Y*O 18 30 00.4 +01 12 50           ~ 48 0
26 [ACA2003] Ser A 7 cor 18 30 00.68 +01 13 01.2           ~ 16 1
27 [CED93] 8 smm 18 30 01.8 +01 15 07           ~ 16 0
28 2MASS J18300274+0112280 Y*O 18 30 02.747 +01 12 28.06           ~ 27 2
29 NAME Gould Belt PoG ~ ~           ~ 684 1

    Equat.    Gal    SGal    Ecl

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2019.10.21-08:45:20

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