J/ApJ/956/50 Influence of outflow feedback in ATLASGAL clumps (Li+, 2023)
The influence of outflow feedback in clumps.
Li Q., Li M., Zhang Li, Pei S., Chang Z., Zhang Yi
<Astrophys. J., 956, 50 (2023)>
=2023ApJ...956...50L 2023ApJ...956...50L
ADC_Keywords: Star Forming Region; Interstellar medium; Radio sources;
Millimetric/submm sources
Keywords: Interstellar clouds ; Interstellar dynamics ; Jets ; Star formation
Abstract:
We analyzed the influence of outflow feedback from two perspectives:
turbulent support and potential disruptive effect, of which 694 clumps
and 188 have been identified as outflow candidates. For turbulent
support, we find the slopes of Eturb-Rclump (turbulent energy and
radius of the clump) and Pturb-Rclump (turbulent momentum and
radius of the clump) have no difference and are consistent with
expected values whether there is outflow feedback in clumps or not.
The ratios of the outflow energy and momentum to the turbulence energy
and momentum (Eflow/Eturb, Pflow/Pturb) show that the majority
of clumps have not enough energy and momentum to support turbulence.
Meanwhile, there is no correlation between the velocity dispersion and
radius. For potential disruptive effects, we conclude that it is
impossible for the outflow activities to disrupt entire clumps and as
the mass of the clumps increases, the clumps becomes harder to
destroy. Finally, we do not see evidence that the virial parameter
changes significantly whether the clumps have outflow candidates or not.
Description:
Li+ (2019, J/MNRAS/488/4638) searched for outflows toward
694 star-forming regions and identified 188 high-mass outflow
candidates. Those candidates were identified by checking the velocity
bulge of HCO+ PV diagram. The bipolar outflow candidates account for
74% of all candidates. The outflow parameters of 105 clumps with
suitable bipolar outflows and reliable distances are obtained.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 52 105 The corresponding outflow candidates' properties
table2.dat 54 694 The physical properties of the clump
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See also:
J/A+A/499/175 : 12CO(2-1) map of NGC 2264-C (Maury+, 2009)
J/MNRAS/431/1752 : ATLASGAL 6.7GHz methanol masers (Urquhart+, 2013)
J/A+A/557/A94 : SiO & HCO+ massive molecular outflows (Sanchez-Monge+, 2013)
J/A+A/549/A45 : ATLASGAL Compact Source Catalog: 330<l<21 (Contreras+, 2013)
J/A+A/568/A41 : ATLASGAL Compact Source Catalog: 280<l<60 (Urquhart+, 2014)
J/MNRAS/444/566 : Methanol maser associated outflows (de Villiers+, 2014)
J/MNRAS/450/1926 : Infall motions in massive star-forming regions (He+, 2015)
J/MNRAS/461/2288 : Infall motions in massive star-forming regions (He+, 2016)
J/other/PASA/33.30 : MALT90 Catalogue (Rathborne+, 2016)
J/MNRAS/473/1059 : Galactic clump properties (Urquhart+, 2018)
J/ApJS/235/3 : Massive outflows with ATLASGAL clump data (Yang+, 2018)
J/MNRAS/477/2220 : Larson relations in massive clumps (Traficante+, 2018)
J/ApJ/867/167 : High-mass outflows from the COHRS CO(3-2) survey (Li+, 2018)
J/MNRAS/488/4638 : Infall & outflow on massive star-forming regions (Li+, 2019)
J/ApJS/251/26 : CO outflow cand. toward W3/4/5 complex. II. (Li+, 2020)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 15 A15 --- AGAL ATLASGAL catalog identifier
17- 23 F7.1 Msun.km/s Pflow [2/54128] Outflow momentum
25- 32 F8.2 10+38J Eflow [0.08/13783] Outflow energy; 1e+45 erg
34- 37 F4.1 10+4yr Tdyn [0.9/78.5] Dynamical time
39- 44 F6.2 mMsun.km/s Fflow [0.01/695] Outflow momentum injection rate
46- 52 F7.2 Lsun Lflow [0/1463] Outflow luminosity
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 15 A15 --- AGAL ATLASGAL catalog identifier
17- 20 F4.2 pc Rc [0.07/9.7]? Clump radius
22- 25 F4.2 [Msun] logMc [0.9/5.3]? Log clump mass
27- 31 F5.3 km/s FWHM [1/8] Full-Width at Half-Maximum
33- 36 F4.2 [Msun.km/s] logPt [1/5.9]? Log turbulent momentum
38- 42 F5.2 [10-7J] logEt [44.28/49.5]? Log turbulent energy; erg
44- 48 F5.2 [10-7J] logEg [43.5/50.6]? Log gravitational binding
energy; erg
50- 54 F5.2 [-] logalpha [-1.06/1.5]? Log virial parameter
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History:
From electronic version of the journal
(End) Prepared by [AAS], Emmanuelle Perret [CDS] 08-Dec-2025