2008A&A...484..381W

Query : 2008A&A...484..381W

2008A&A...484..381W - Astronomy and Astrophysics, volume 484, 381-388 (2008/6-3)

The relation between CH and CN molecules and carriers of 5780 and 5797 diffuse interstellar bands.

WESELAK T., GALAZUTDINOV G.A., MUSAEV F.A. and KRELOWSKI J.

Abstract (from CDS):

Optical absorption bands of the interstellar CN (near 3875Å) and CH molecules (the violet and blue ones near 4300 and 3886Å, respectively) were applied to determine the column densities of these two radicals in a statistically meaningful sample of 84 reddened OB stars. Equivalent widths of the major 5780 and 5797 diffuse bands (DIBs) were measured along the lines of sight toward the same stars in spectra acquired using four echelle spectrographs situated in both the northern and southern hemispheres. The mutual relation between abundances of CH and CN molecules shows a large scatter; and especially the CN molecule abundance varies strongly from cloud to cloud. The carriers of the major 5780 and 5797 DIBs seem to be spatially correlated with column densities of CH rather than of the CN molecule. This is most likely true in the case of a narrower feature: the 5797 DIB correlates with CH column density better than 5780 does. The correlations do suggest that the DIB carriers are likely hydrocarbons. They apparently occupy molecular clouds since the H2 abundance is closely related to that of methylidyne (CH), as has already been demonstrated.

Abstract Copyright: ∼

Journal keyword(s): ISM: molecules

Simbad objects: 86

goto Full paper

goto View the references in ADS

Number of rows : 86
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 HD 12953 sg* 02 08 40.5790963584 +58 25 24.970714608 6.28 6.29 5.68 5.09 4.59 A1Ia 193 0
2 HD 13854 s*b 02 16 51.7162480872 +57 03 18.882144756 6.10 6.76 6.48 6.14 5.95 B1Iab 213 0
3 HD 14143 s*b 02 19 13.9420338600 +57 10 09.234950232 6.71 7.16 6.7000     B2Ia 201 0
4 HD 20041 * 03 15 47.9705004096 +57 08 26.243459556 6.61 6.52 5.79     A0Ia 139 1
5 HD 21291 s*b 03 29 04.1328896160 +59 56 25.201164588 4.40 4.63 4.22 3.84 3.46 B9Ia 290 0
6 * o Per * 03 42 22.6459308614 +33 57 54.093701142 4.13 4.912 4.972     B0.5V 299 0
7 * omi Per ** 03 44 19.13204 +32 17 17.6929 3.13 3.88 3.83 3.71 3.71 B1III 605 0
8 * zet Per s*b 03 54 07.9224751 +31 53 01.081262 2.19 2.97 2.85 2.71 2.62 B1Ib 856 0
9 V* X Per HXB 03 55 23.0777456088 +31 02 45.039836148 6.090 6.840 6.720     O9.5III 976 0
10 V* SZ Cam EB* 04 07 49.2849421032 +62 19 58.626896088 6.82 7.26 6.93     O9.5Vn 220 1
11 * 62 Tau * 04 23 59.7627483096 +24 18 03.527065188 6.18 6.499 6.337     B3V 218 0
12 V* AE Aur Or* 05 16 18.1493304816 +34 18 44.344404000 5.48 6.18 5.96     O9.5V 564 1
13 NAME Ori I As* 05 38 -02.8           ~ 615 0
14 HD 45314 Be* 06 27 15.7784072112 +14 53 21.212913660 5.91 6.79 6.64     O9:npe 176 0
15 HD 46150 Y*O 06 31 55.5205071744 +04 56 34.296516096 6.03 6.86 6.73 6.50 6.41 O5V((f))z 396 0
16 HD 46223 Y*O 06 32 09.3068103600 +04 49 24.705695568 6.73 7.50 7.28 6.95 6.79 O4V((f)) 381 0
17 HD 46573 SB* 06 34 23.5692982800 +02 32 02.944339980 7.61 8.27 7.93     O7V((f))z 129 0
18 HD 47432 Pu* 06 38 38.1872868432 +01 36 48.675208608 5.67 6.44 6.31 6.11 6.04 O9.7Ib 182 1
19 HD 48434 s*b 06 43 38.6456583720 +03 55 57.109225980 4.99 5.88 5.90     B0II 155 0
20 HD 75149 s*b 08 46 30.5469120768 -45 54 45.019158300 5.25 5.677 5.459 6.77   B5Iab 108 0
21 HD 80558 s*b 09 18 42.3559197816 -51 33 38.338564212 6.15 6.47 5.93 5.36 4.94 B6Ia 115 0
22 V* V661 Car EB* 10 44 00.3711575208 -59 52 27.521778900 7.60 8.31 8.04 8.75   O6.5III(f) 143 0
23 HD 94367 sg* 10 52 30.8460074448 -57 14 25.458038304 4.87 5.41 5.25     A0Ia 58 0
24 HD 99264 * 11 24 11.1271526712 -72 15 23.789086920 5.08 5.585 5.583     B2V 82 0
25 HD 99872 ** 11 28 18.41395 -72 28 26.3265 5.83 6.221 6.115     B3V 81 0
26 HD 101191 SB* 11 38 12.1672877688 -63 23 26.799724320 7.69 9.32 9.36 9.29   O8V 83 0
27 HD 101205 EB* 11 38 20.36114 -63 22 21.8889 5.64 6.53 6.54 7.41   O6V 160 0
28 HD 101223 * 11 38 22.7710327032 -63 12 02.800069956 8.12 9.55 9.51 9.41   O8V 80 0
29 * tet02 Cru SB* 12 04 19.2200768232 -63 09 56.516665140 4.02 4.613 4.716     B3V 101 1
30 HD 110432 HXB 12 42 50.2663572384 -63 03 31.052981412 4.79 5.58 5.31     B0.5IVpe 310 0
31 HD 116072 EB* 13 22 35.8501250304 -60 58 19.594661016   6.162 6.153     B3/5 52 1
32 * b Sco * 15 50 58.7444628720 -25 45 04.658676984 3.84 4.552 4.635     B1.5Vn 291 0
33 * sig Sco bC* 16 21 11.3157134 -25 35 34.051476 2.32 3.02 2.89 1.69 1.58 B1III+B1:V 870 0
34 HD 147888 ** 16 25 24.2915998776 -23 27 36.747568152 6.71 7.05 6.74     B3V 215 0
35 HD 147889 Y*O 16 25 24.3163637976 -24 27 56.569805208 8.56 8.73 7.90     B2V 476 1
36 * rho Oph B * 16 25 35.0324153856 -23 26 46.923516744   5.26 6.66     B2V 128 0
37 HD 147932 Ro* 16 25 35.0813422344 -23 24 18.806143896 7.24 7.59 7.27     B5V 130 0
38 * chi Oph Be* 16 27 01.4355697915 -18 27 22.499961252 3.95 4.71 4.43 3.97 3.73 B2Vne 598 0
39 HD 148379 s*b 16 29 42.3277745448 -46 14 35.630932596 5.51 5.95 5.37 4.85 4.39 B2Iab 180 0
40 HD 148688 s*b 16 31 41.7687715992 -41 49 01.732565676 5.16 5.78 5.39 5.05 4.70 B1Iaeqp 162 0
41 HD 148937 SB* 16 33 52.3869185520 -48 06 40.476418740 6.49 7.12 6.71 7.61   O6f?p 391 1
42 HD 149404 s*b 16 36 22.5628499784 -42 51 31.902127776 5.23 5.88 5.52 6.90   O8.5Iab(f)p 249 1
43 * zet Oph Be* 16 37 09.5400587698 -10 34 01.509742704 1.73 2.58 2.56 2.46 2.50 O9.2IVnn 1839 0
44 HD 150136 SB* 16 41 20.4155898816 -48 45 46.730465028 4.98 5.78 5.65 6.93   O3.5-4III(f*)+O6IV 190 0
45 HD 150168 s*b 16 41 40.2261742224 -49 39 05.588433432 4.88 5.67 5.68 5.64 5.60 B1Iab/Ib 88 0
46 HD 152076 Y*O 16 53 07.3002035928 -41 43 45.479256528 7.98 9.10 8.90 9.36   B0III 54 0
47 HD 152219 EB* 16 53 55.6078109256 -41 52 51.496403268 6.950 7.705 7.569   7.267 O9.5III(n) 107 0
48 HD 152235 s*b 16 53 58.8528412848 -41 59 39.577848180 6.47 6.92 6.38 5.84 5.42 B0.5Ia 192 0
49 * zet01 Sco s*b 16 53 59.7271314888 -42 21 43.307334468 4.80 5.31 4.79 4.32 3.86 B1.5Ia+ 372 0
50 HD 152218 Y*O 16 53 59.9905195488 -41 42 52.817214240 7.02 7.78 7.570   7.243 O9IV+B0:V: 150 0
51 HD 152234 s*b 16 54 01.8373779952 -41 48 22.987396952 4.92 5.64 5.45     B0.5Ia 194 0
52 HD 152233 SB* 16 54 03.5909222280 -41 47 29.841281484 5.93 6.72 6.59     O6II(f) 194 0
53 HD 152246 SB* 16 54 05.2976157264 -41 04 46.117795944 6.69 7.45 7.29 8.19   O9IV 123 1
54 HD 152249 s*b 16 54 11.6395658856 -41 50 57.295111524 5.91 6.65 6.45     OC9Iab 239 0
55 CD-41 11037 SB* 16 54 13.2253067352 -41 50 32.518100184 7.21 8.08 7.90     O9IV 75 0
56 HD 326329 Y*O 16 54 14.1033282720 -41 50 08.503512720 8.141 9.183 9.013 9.477 8.460 O9.7V 73 0
57 HD 326331 SB* 16 54 25.9691286216 -41 49 55.768191852 6.886 7.678 7.497   7.143 O8IVn((f)) 80 0
58 HD 152314 Y*? 16 54 32.0048577720 -41 48 18.848961036 7.256 7.974 7.749 9.01 7.446 O9IV 108 0
59 V* V861 Sco EB* 16 56 35.9776521336 -40 49 24.443276592 5.86 6.51 6.22 5.92 5.64 B2Iab/b 221 0
60 * k Sco s*b 17 04 49.3516568736 -34 07 22.541680380 4.44 5.13 4.87 4.59 4.42 B2Iab 151 0
61 HD 154445 * 17 05 32.2587926880 -00 53 31.437713328 5.10 5.73 5.61 5.39 5.34 B1V 262 0
62 HD 154368 s*b 17 06 28.3687759224 -35 27 03.760593156 6.10 6.63 6.13 7.12   O9.5Iab 294 0
63 HD 163800 * 17 58 57.2584170624 -22 31 03.165347496 6.61 7.27 7.00 6.68 6.49 O7.5III((f)) 149 0
64 * 9 Sgr Em* 18 03 52.4450051016 -24 21 38.632254012 5.08 5.97 5.97 5.72 5.70 O4V((f))z 543 0
65 HD 165688 WR* 18 07 56.9609461704 -19 23 56.863324824 10.46 10.31 9.87 9.85   WN5-6b 156 0
66 HD 166734 s*b 18 12 24.6551425392 -10 43 53.060750040 9.36 9.49 8.42 7.33 6.47 O7.5Iabf 180 0
67 HD 168075 Y*O 18 18 36.0418343184 -13 47 36.449731536 8.62 9.22 8.77 9.45   O7V(n)((f))z 142 0
68 BD-13 4927 Y*O 18 18 40.0938541704 -13 45 18.603231696 10.12 10.14 9.48 9.71   O7II(f) 76 0
69 BD-13 4930 Y*O 18 18 52.6749052848 -13 49 42.634556148 9.04 9.71 9.45   8.968 O9.7V 106 0
70 HD 168137 Y*O 18 18 56.1894798360 -13 48 31.092549588 8.72 9.36 8.94 9.55   O8Vz 122 0
71 HD 168607 s*b 18 21 14.8856951904 -16 22 31.763755236 10.23 9.82 8.28 8.55   B9Ia+ 189 1
72 HD 168625 s*b 18 21 19.5484021368 -16 22 26.075142156 10.15 9.78 8.37 8.76   B8Ia+ 277 2
73 * 20 Aql V* 19 12 40.7117853648 -07 56 22.263784872 5.03 5.47 5.34     B2/3II 231 0
74 * kap Aql * 19 36 53.4488871022 -07 01 38.924816492 4.050 4.930 4.960 4.90 4.94 B0.5IIIn 341 0
75 HD 190603 s*b 20 04 36.1742825304 +32 13 06.953333016 5.73 6.19 5.65 5.13 4.71 B1.5Ia+ 344 0
76 * 68 Cyg SB* 21 18 27.1862219256 +43 56 45.399147864 4.05 4.99 5.00     O7.5IIIn((f)) 374 0
77 HD 203938 ** 21 23 50.1690416971 +47 09 52.446883103 7.13 7.54 7.08     B0.5IV 99 0
78 HD 204827 SB* 21 28 57.7592315784 +58 44 23.238427956 8.63 8.74 7.94 7.25 6.76 O9.5IV 355 0
79 * 9 Cep Pu* 21 37 55.2241394424 +62 04 54.990376788 4.49 5.03 4.73 4.42 4.24 B2Ib 301 0
80 HD 206267 SB* 21 38 57.6195772032 +57 29 20.554016280 5.09 5.83 5.62   5.56 O6.0V((f))+O9:V 499 0
81 HD 207198 Y*? 21 44 53.2791389640 +62 27 38.048647248 5.61 6.25 5.94 5.66 5.49 O8.5II 347 0
82 HD 207538 * 21 47 39.7896725544 +59 42 01.348647696 7 7.55 7.30     O9.7IV 198 1
83 * 13 Cep V* 21 54 53.1538880928 +56 36 40.415024952 6.50 6.52 5.80 5.12 4.52 B8Ib 187 0
84 * 14 Cep SB* 22 02 04.5726270264 +58 00 01.309758516 4.77 5.551 5.542     O9IV(n)var+B1:V: 255 0
85 * lam Cep s*b 22 11 30.5765111040 +59 24 52.154264880 4.55 5.29 5.05 4.77 4.62 O6.5I(n)fp 684 1
86 * 26 Cep * 22 27 05.3104700184 +65 07 56.160347196 5.24 5.806 5.515     B0.5Ib 149 0

To bookmark this query, right click on this link: simbad:objects in 2008A&A...484..381W and select 'bookmark this link' or equivalent in the popup menu