2018ApJ...854..133T

Query : 2018ApJ...854..133T

2018ApJ...854..133T - Astrophys. J., 854, 133-133 (2018/February-3)

Survey observations to study chemical evolution from high-mass starless cores to high-mass protostellar objects. I. HC3N and HC5N.

TANIGUCHI K., SAITO M., SRIDHARAN T.K. and MINAMIDANI T.

Abstract (from CDS):

We carried out survey observations of HC3N and HC5N in the 42-45 GHz band toward 17 high-mass starless cores (HMSCs) and 35 high-mass protostellar objects (HMPOs) with the Nobeyama 45 m radio telescope. We have detected HC3N from 15 HMSCs and 28 HMPOs, and HC5N from 5 HMSCs and 14 HMPOs, respectively. The average values of the column density of HC3N are found to be (5.7±0.7)×1012 and (1.03±0.12)×1013 cm–2 in HMSCs and HMPOs, respectively. The average values of the fractional abundance of HC3N are derived to be (6.6±0.8)×10–11 and (3.6±0.5)×10–11 in HMSCs and HMPOs, respectively. We find that the fractional abundance of HC3N decreases from HMSCs to HMPOs using the Kolmogorov-Smirnov test. On the other hand, its average value of the column density slightly increases from HMSCs to HMPOs. This may imply that HC3N is newly formed in dense gas in HMPO regions. We also investigate the relationship between the column density of HC3N in HMPOs and the luminosity-to-mass ratio (L/M), a physical evolutional indicator. The column density of HC3N tends to decrease with the increase of the L/M ratio, which suggests that HC3N is destroyed by the stellar activities.

Abstract Copyright: © 2018. The American Astronomical Society. All rights reserved.

Journal keyword(s): astrochemistry - ISM: molecules - stars: formation - stars: massive

Simbad objects: 76

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Number of rows : 76
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 OMC 2 MoC 05 35 27 -05 10.1           ~ 449 1
2 NAME Ori A MoC 05 38 -07.1           ~ 3008 0
3 IRAS 05358+3543 Y*O 05 39 09.92 +35 45 17.2           ~ 163 0
4 V* U Aur Mi* 05 42 09.0558760728 +32 02 23.765982684   12.00 11.65 9.14   M6.5-9:e 116 0
5 IRAS 05490+2658 Y*O 05 52 12.9 +26 59 33           ~ 49 0
6 GAL 192.16-03.82 HII 05 58 13.4 +16 32 00           ~ 143 1
7 NAME Vela C Cld 08 57 -43.2           ~ 178 0
8 [BSM2002] 18102-1800 1 cor 18 13 11.0 -18 00 23           ~ 7 0
9 [BSM2002] 18151-1208 2 cor 18 17 50.36 -12 07 54.8           ~ 18 0
10 IRAS 18151-1208 Y*O 18 17 58.1254 -12 07 24.893           ~ 106 0
11 AGAL G016.586-00.051 cor 18 21 09 -14 31.8           ~ 32 0
12 SSTGLMC G016.5783-00.0814 Y*O 18 21 15.0793 -14 32 55.321           ~ 31 0
13 [BSM2002] 18223-1243 4 cor 18 25 07.23 -12 47 54.2           ~ 8 0
14 NAME IRDC 18223-3 Y*O 18 25 08 -12 45.5           ~ 71 0
15 SSTGLMC G018.6274-00.0705 Y*O 18 25 10.0397930400 -12 44 08.557501272           ~ 27 0
16 HIGALBM G018.6544-00.0592 cor 18 25 10.53 -12 42 25.8           ~ 9 0
17 AGAL G023.264+00.077 cor 18 33 24.00 -08 33 31.0           ~ 41 0
18 [BSM2002] 18306-0835 3 cor 18 33 32.12 -08 32 28.5           ~ 5 0
19 AGAL G024.373-00.159 Y*O 18 36 18.23 -07 41 01.1           ~ 14 0
20 [WWS2012] G024.44-00.23 cor 18 36 40.8616 -07 39 12.022           ~ 16 0
21 AGAL G027.179-00.104 cor 18 41 17.320 -05 09 56.83           ~ 22 0
22 EGO G028.28-0.36 of? 18 44 13.2 -04 18 04           ~ 19 0
23 AGAL G030.389+00.124 cor 18 46 21.90 -02 12 23.7           ~ 22 0
24 IRAS 18437-0216 HII 18 46 22.7 -02 13 24           ~ 19 0
25 IRAS 18445-0222 HII 18 47 10.6 -02 19 08           ~ 28 0
26 [BSM2002] 18445-0222 4 cor 18 47 14.6 -02 15 44           ~ 4 0
27 IRAS 18447-0229 HII 18 47 23.7 -02 25 55           ~ 22 0
28 [BSM2002] 18447-0229 5 cor 18 47 31.4 -02 26 46           ~ 4 0
29 [BSM2002] 18447-0229 4 cor 18 47 38.9 -02 28 00           ~ 5 0
30 [BSM2002] 18447-0229 3 cor 18 47 42.0 -02 25 12           ~ 4 0
31 [BSM2002] 18454-0158 9 cor 18 47 50.0 -01 53 46           ~ 3 0
32 JCMTLSP J184749.7-015729 cor 18 47 50.5 -01 57 28           ~ 7 0
33 AGAL G030.848-00.081 Y*O 18 47 56 -01 53.5           ~ 33 0
34 [BSM2002] 18454-0158 5 cor 18 47 58.08 -01 56 10.4           ~ 6 0
35 IRAS 18454-0158 HII 18 48 01.3 -01 54 49           ~ 15 0
36 SDC G30.854-0.109 cor 18 48 02.17 -01 53 56.5           ~ 11 0
37 [BSM2002] 18454-0158 10 cor 18 48 10.0 -01 53 29           ~ 4 0
38 IRAS 19035+0641 Y*O 19 06 01.6288 +06 46 36.140           ~ 78 0
39 V* R Aql OH* 19 06 22.2510922392 +08 13 48.012661776 8.06 7.69 6.09     M6.5-9e 564 2
40 IRAS 19074+0752 cor 19 09 53.55 +07 57 14.8           ~ 43 0
41 IRAS 19175+1357 cor 19 19 49.22 +14 02 46.8           ~ 28 0
42 [BSM2002] 19175+1357 4 cor 19 19 50.58 +14 01 22.4           ~ 8 0
43 [BSM2002] 19175+1357 3 cor 19 19 52.04 +14 01 51.0           ~ 6 0
44 AGAL G051.678+00.719 cor 19 23 59 +16 57.7           ~ 43 0
45 AGAL G049.669-00.457 Y*O 19 24 20 +14 38.0           ~ 38 0
46 AGAL G053.037+00.112 cor 19 28 55.5 +17 52 00           ~ 47 0
47 IRAS 19282+1814 HII 19 30 28.1 +18 20 53           ~ 37 0
48 NGC 6820 GNe 19 42 27.930 +23 05 14.75       14.56   ~ 49 0
49 [BSM2002] 19410+2336 2 cor 19 43 10.20 +23 45 03.0           ~ 6 0
50 IRAS 19410+2336 SFR 19 43 11.5 +23 44 06           ~ 155 0
51 IRAS 19411+2306 cor 19 43 17.9613824400 +23 14 01.619818008           ~ 45 0
52 MSX6C G059.7654-00.0269 HII 19 43 29.8 +23 40 25           ~ 25 0
53 [BNM96] 063.125+0.443 HII 19 49 09.3798758496 +26 49 08.186732688           ~ 22 0
54 V* RR Aql Mi* 19 57 36.0616870728 -01 53 11.339520360     7.80 7.45   M7.5e 294 2
55 IRAS 20051+3435 * 20 07 04.5 +34 44 45           ~ 30 0
56 IRAS 20081+2720 HII 20 10 11.5 +27 29 06           ~ 40 0
57 JCMTSF J201013.0+272814 cor 20 10 13.12 +27 28 17.0           ~ 8 0
58 IRAS 20126+4104 Y*O 20 14 25.8816769656 +41 13 36.879427236           B2.5-B0.5 440 0
59 IRAS 20205+3948 Y*O 20 22 21.9 +39 58 05           ~ 28 0
60 CPM 35 cor 20 23 23.855 +41 17 40.49           ~ 57 0
61 RAFGL 2591 Y*O 20 29 24.8230 +40 11 19.590           ~ 622 0
62 IRAS 20293+3952 HII 20 31 11.040 +40 03 10.69           ~ 75 0
63 IRAS 20319+3958 HII 20 33 49.24632 +40 08 44.1924           ~ 44 1
64 IRAS 20332+4124 HII 20 35 00.5 +41 34 48           ~ 37 0
65 IRAS 20343+4129 HII 20 36 07.1 +41 40 01           ~ 54 0
66 V* UX Cyg OH* 20 55 05.5117404456 +30 24 52.015482108       10.404   M6-6.5e 163 0
67 IRC +60334 Mi* 21 58 01.3003951272 +56 44 49.606323396   18.43 15.36 10.29   M8 32 0
68 IRAS 22134+5834 Y*O 22 15 09.08 +58 49 07.8           ~ 72 0
69 IRAS 22551+6221 HII 22 57 05.6 +62 37 48           ~ 40 0
70 JCMTSE J225855.3+592838 cor 22 58 55.15 +59 28 32.6           ~ 8 0
71 [BNM96] 109.098-0.346 HII 22 59 05.5344256224 +59 28 23.280817692           ~ 44 0
72 IRAS 23033+5951 Y*O 23 05 25.1762883456 +60 08 15.374293800           ~ 96 0
73 IRAS 23139+5939 Y*O 23 16 10.3420 +59 55 28.596           ~ 97 0
74 IRAS 23151+5912 HII 23 17 21.0 +59 28 49           ~ 100 0
75 IRAS 23545+6508 * 23 57 05.2 +65 25 11           B 50 0
76 V* R Cas Mi* 23 58 24.8682785040 +51 23 19.713029388 6.71 6.63 4.80     M6.5-9e 702 0

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