J/ApJ/642/1140 Disk mass loss in the Orion Nebula Cluster (Olczak+, 2006)
Encounter-triggered disk mass loss in the Orion Nebula Cluster.
Olczak C., Pfalzner S., Spurzem R.
<Astrophys. J., 642, 1140-1151 (2006)>
=2006ApJ...642.1140O 2006ApJ...642.1140O
ADC_Keywords: Clusters, open ; Mass loss ; Accretion ; Interstellar medium
Keywords: accretion, accretion disks - circumstellar matter -
open clusters and associations: individual (ONC)
Abstract:
The relevance of encounters on the destruction of protoplanetary disks
in the Orion Nebula cluster (ONC) is investigated by combining two
different types of numerical simulation. First, star-cluster
simulations are performed to model the stellar dynamics of the ONC,
the results of which are used to investigate the frequency of
encounters, the mass ratio and separation of the stars involved, and
the eccentricity of the encounter orbits.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 88 45 Table of relative disk mass losses ΔMd/Md
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See also:
J/AJ/113/1733 : Orion Nebula Cluster population (Hillenbrand 1997)
J/AJ/119/3026 : Circumstellar disk candidates in Orion (Rebull+, 2000)
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 4 F4.1 --- rp/rd Ratio of the periastron distance rp to the
disk radius rd.
6- 10 F5.3 --- M500 ?=0.0 Relative disk mass loss for M2/M1=500 (1)
12- 16 F5.3 --- M90 ?=0.0 Relative disk mass loss for M2/M1=90 (1)
18- 22 F5.3 --- M50 ?=0.0 Relative disk mass loss for M2/M1=50 (1)
24- 28 F5.3 --- M20 ?=0.0 Relative disk mass loss for M2/M1=20 (1)
30- 34 F5.3 --- M9 ?=0.0 Relative disk mass loss for M2/M1=9 (1)
36- 40 F5.3 --- M5 ?=0.0 Relative disk mass loss for M2/M1=5 (1)
42- 46 F5.3 --- M4 ?=0.0 Relative disk mass loss for M2/M1=4 (1)
48- 52 F5.3 --- M3 ?=0.0 Relative disk mass loss for M2/M1=3 (1)
54- 58 F5.3 --- M2 ?=0.0 Relative disk mass loss for M2/M1=2 (1)
60- 64 F5.3 --- M1.5 ?=0.0 Relative disk mass loss for M2/M1=1.5 (1)
66- 70 F5.3 --- M1 ?=0.0 Relative disk mass loss for M2/M1=1 (1)
72- 76 F5.3 --- M0.5 ?=0.0 Relative disk mass loss for M2/M1=0.5 (1)
78- 82 F5.3 --- M0.3 ?=0.0 Relative disk mass loss for M2/M1=0.3 (1)
84- 88 F5.3 --- M0.1 ?=0.0 Relative disk mass loss for M2/M1=0.1 (1)
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Note (1): For all simulated configurations of parabolic (e=1) star-disc
encounters (M2/M1 is the relative perturber mass). Results from
simulations are denoted by four digits, the values "0.0" were edited
manually.
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History:
From electronic version of the journal
(End) Greg Schwarz [AAS], Marianne Brouty [CDS] 10-Jun-2008