2006A&A...447..589G


C.D.S. - SIMBAD4 rel 1.7 - 2021.04.23CEST12:28:16

2006A&A...447..589G - Astronomy and Astrophysics, volume 447, 589-595 (2006/2-4)

On the diffuse bands related to the C2 interstellar molecule.

GALAZUTDINOV G.A., GNACINSKI P., HAN I., LEE B.-C., KIM K.-M. and KRELOWSKI J.

Abstract (from CDS):

The recently published idea that intensities of some weak diffuse interstellar bands (DIBs) are related to the C2 molecule column density have been examined. We use a set of high quality echelle spectra of heavily reddened stars, acquired at the Bohyunsan Optical Astronomical Observatory (South Korea), with a resolution R=30000. The high quality (high S/N ratio) of our spectra is proved by the fact that despite using the most widely used Phillips (2, 0) band of the C2 molecule (near 8760Å), we can trace the (3, 0) Phillips band (near 7725Å) as well. Equivalent widths of four (5176, 5542, 5546 and 5769Å) out of 16 examined DIBs demonstrate relatively good correlation with C2 column density. However, a majority of the studied DIBs, already reported as ``C2'' ones, most likely are not related to this simplest carbon molecule. A removal of peculiar objects like HD34078 from the analyzed sample does not substantially change the level of correlations.

Abstract Copyright:

Journal keyword(s): ISM: lines and bands - ISM: molecules

Simbad objects: 22

goto Full paper

goto View the reference in ADS

Number of rows : 22

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 HD 13256 s*b 02 11 43.9098048757 +60 42 44.499737037 9.8 9.69 8.68     B1Ia 62 0
2 BD+59 451 * 02 16 10.7764599270 +59 41 05.586343390 9.7 9.97 9.37     B1II 28 0
3 BD+59 456 * 02 18 13.7665060796 +59 48 07.529841632 10.02 10.39 9.98     B0.5V 34 0
4 HD 15785 s*b 02 34 48.0520007647 +60 33 07.449585942 10.033 8.82 8.37     B1Iab 70 0
5 BD+60 594 * 02 57 04.1272029480 +61 24 57.668385897 10.563 9.58 9.30     O9V 85 0
6 V* AE Aur Or* 05 16 18.1489437436 +34 18 44.347016027 5.48 6.18 5.96     O9.5V 533 1
7 HD 46149 SB* 06 31 52.5314050362 +05 01 59.186016432 7.03 7.80 7.61 7.54 7.36 O8.5V 259 0
8 IRC +10216 C* 09 47 57.40632 +13 16 43.5648     10.96     C9,5e 2187 0
9 * zet Oph Be* 16 37 09.5390545 -10 34 01.529471 1.73 2.58 2.56 2.46 2.50 O9.2IVnn 1751 2
10 HD 186745 sg* 19 45 24.3491892184 +23 56 34.375632222 8.00 7.96 7.03     B8Ia 95 0
11 HD 226868 HXB 19 58 21.6758193269 +35 12 05.782512305 9.38 9.72 8.91 8.42   O9.7Iabpvar 3998 0
12 HD 228712 s*b 20 16 35.5614769432 +40 53 08.140586726 9.86 9.81 8.67     B0.5Ia 45 0
13 HD 228779 s*b 20 17 54.1882106632 +34 49 02.031052011 10.45 10.23 8.92     O9Iab 52 0
14 BD+40 4220 EB* 20 32 22.4241357648 +41 18 18.942382590 11.32 10.79 9.185     O6.5-7f+O5.5-6f 375 0
15 HD 204827 SB* 21 28 57.7601719555 +58 44 23.223287944 8.63 8.74 7.94 7.25 6.76 O9.5IV 316 0
16 HD 206267 SB* 21 38 57.6182747705 +57 29 20.557311013 5.09 5.83 5.62   5.56 O6.0V((f))+O9:V 457 0
17 HD 207538 * 21 47 39.7898466603 +59 42 01.344202478 7 7.55 7.30     O9.7IV 181 1
18 * lam Cep s*b 22 11 30.5750839949 +59 24 52.147736074 4.55 5.29 5.05 4.77 4.62 O6.5I(n)fp 653 1
19 HD 235825 * 22 23 28.7248279078 +55 15 06.459171251 8.79 9.52 9.28     O9V 36 0
20 HD 219287 Em* 23 14 03.5236393314 +59 22 29.008468977 10.12 10.30 9.23 8.29 7.57 B0 50 0
21 BD+58 2580 * 23 21 10.4153703020 +58 57 02.222157466 10.63 10.90 10.1     B0 14 0
22 BD+59 2735 * 23 30 04.9572099167 +59 50 49.641979045 11.01 10.89 9.88     B0Ib 22 0

    Equat.    Gal    SGal    Ecl

To bookmark this query, right click on this link: simbad:objects in 2006A&A...447..589G and select 'bookmark this link' or equivalent in the popup menu


2021.04.23-12:28:16

© Université de Strasbourg/CNRS

    • Contact