J/other/ChA+A/36.238 Dense parts of outflows toward massive cores (Sun+, 2012)
A sensitive survey of dense parts of outflows toward massive cores.
Sun Y., Xu Y., Yang J.
<Chinese Astron., 36, 238-245 (2012)>
=2012ChA&A..36..238S 2012ChA&A..36..238S
ADC_Keywords: Associations, stellar ; Abundances ; Spectroscopy
Keywords: stars: formation - radio continuum lines: ISM - ISM: abundances
Abstract:
A set of samples of 13 massive star-forming cores were observed in SiO
(2-1), CH3OH (2-1) and C34S (2-1) thermal lines. Nine of these
cores were detected in all three lines. Among the nine SiO detections,
three were new detections, and relatively faint. Most of the lines
have wide wings, which might be interpreted as the evidence of ongoing
energetic outflows in the cores.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table14.dat 95 13 Observed samples and the RMS levels of each
line after channel smoothing (table1) and
column density and abundance (table4)
table3.dat 113 42 Gaussian parameters of the detected lines
with 1σ errors
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Byte-by-byte Description of file: table14.dat
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Bytes Format Units Label Explanations
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1- 14 A14 --- Name Source name
16- 17 I2 h RAh Right ascension (J2000)
19- 20 I2 min RAm Right ascension (J2000)
22- 26 F5.2 s RAs Right ascension (J2000)
28 A1 --- DE- Declination sign (J2000)
29- 30 I2 deg DEd Declination (J2000)
32- 33 I2 arcmin DEm Declination (J2000)
35- 38 F4.1 arcsec DEs Declination (J2000)
40- 44 F5.3 K rms1 CH3OH(2-1) rms level
46- 50 F5.3 K rms2 C34S (2-1) rms level
52- 56 F5.3 K rms3 SiO (2-1) rms level
58- 61 F4.2 10+14cm-2 NSiO ? SiO column density
63- 66 F4.2 10+14cm-2 NCH3OH ? CH3OH column density
68- 72 F5.2 10+14cm-2 NC34S ? C34S column density
74- 77 F4.2 10+23cm-2 NH2 ? H2 column density
79- 83 F5.2 10-10 XSiO ? SiO abundance
85- 89 F5.2 10-10 XCH3OH ? CH3OH abundance
91- 95 F5.2 10-10 XC34S ? C34S abundance
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
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1- 14 A14 --- Name Source name
16 I1 --- Line [1/4]? Line identification number (1)
18- 23 F6.2 km/s Vlsr1 ? CH3OH LSR velocity
25- 28 F4.2 km/s e_Vlsr1 ? rms uncertainty on CH3OH LSR velocity
30- 34 F5.2 km/s W1 ? CH3OH line width
36- 39 F4.2 km/s e_W1 ? rms uncertainty on CH3OH line width
41- 44 F4.2 K T*A1 ? CH3OH Antena temperature
46- 49 F4.2 K e_T*A1 ? rms uncertainty on CH3OH antenna temperature
51- 56 F6.2 km/s Vlsr2 ? C34S LSR velocity
58- 61 F4.2 km/s e_Vlsr2 ? rms uncertainty on C34S LSR velocity
63- 66 F4.2 km/s W2 ? C34S line width
68- 71 F4.2 km/s e_W2 ? rms uncertainty on C34S line width
73- 76 F4.2 K T*A2 ? C34S antenna temperature
78- 81 F4.2 K e_T*A2 ? rms uncertainty on C34S antenna temperature
83- 88 F6.2 km/s Vlsr3 ? C34S LSR velocity
90- 93 F4.2 km/s e_Vlsr3 ? rms uncertainty on C34S LSR velocity
95- 98 F4.2 km/s W3 ? C34S line width
100-103 F4.2 km/s e_W3 ? rms uncertainty on C34S line width
105-108 F4.2 K T*A3 ? C34S Antena temperature
110-113 F4.2 K e_T*A3 ? rms uncertainty on C34S Antena temperature
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Note (1): Observed lines:
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Line Species Transition Rest Frequency Tsyst
(MHz) (K)
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1 CH3OH 21-11 E 96739.3630 130
2 CH3OH 20-10 A 96741.3770 130
3 CH3OH 20-10 E 96744.5490 130
4 CH3OH 21-11 E 96755.5070 130
C34S 2-1 96412.9610 130
SiO 2-1 v=0 86847.0100 210
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 24-Dec-2012