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| Query : 2000ApJ...531..312M |
2000ApJ...531..312M - Astrophys. J., 531, 312-320 (2000/March-1)
Gas-phase electronic spectra of carbon-chain radicals compared with diffuse interstellar band observations.
MOTYLEWSKI T., LINNARTZ H., VAIZERT O., MAIER J.P., GALAZUTDINOV G.A., MUSAEV F.A., KRELOWSKI J., WALKER G.A.H. and BOHLENDER D.A.
Abstract (from CDS):
This paper compares laboratory gas-phase spectra of neutral and cationic linear carbon-chain radicals with astronomical diffuse interstellar band (DIB) spectra. The origin bands of the strong electronic transitions of the studied species, C2nH (n=3-6), HC2nH+ (n=2-4), NC2n–2N+ (n=3, 4), do not coincide with detectable DIBs, except for HC2n–1N+ (n=3), which possibly matches a weak feature. It is concluded that the column densities of these species through the observed diffuse clouds are below 2x1012 cm–2. The profile change and the shift of the maxima of the absorption bands with temperature are illustrated. The relation to radio-astronomical detection of carbon chains in diffuse media is also discussed.
Abstract Copyright: ∼
Journal keyword(s): ISM: Lines and Bands - ISM: Molecules
Simbad objects: 15
| Number of rows : 15 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2026 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | * kap Cas | s*b | 00 32 59.9918836206 | +62 55 54.413126128 | 3.50 | 4.30 | 4.16 | 4.02 | 3.96 | BC0.7Ia | 474 | 0 |
| 2 | * omi Per | SB* | 03 44 19.1337687984 | +32 17 17.687367960 | 3.13 | 3.91 | 3.91 | 3.71 | 3.71 | B1III | 628 | 0 |
| 3 | * zet Per | s*b | 03 54 07.9224751 | +31 53 01.081262 | 2.19 | 2.97 | 2.85 | 2.71 | 2.62 | B1Ib | 881 | 0 |
| 4 | * ksi Per | ** | 03 58 57.9024302099 | +35 47 27.709515737 | 3.190 | 4.080 | 4.060 | 3.88 | 3.89 | O7.5III(n)((f)) | 850 | 0 |
| 5 | HD 25639 | * | 04 07 51.3928669512 | +62 19 48.385984944 | 6.87 | 7.24 | 6.86 | B0III | 130 | 0 | ||
| 6 | HD 167971 | s*b | 18 18 05.8947362832 | -12 14 33.313601112 | 7.89 | 8.27 | 7.50 | 6.68 | 6.279 | O8Iaf(n)+O4/5 | 324 | 0 |
| 7 | HD 168607 | s*b | 18 21 14.8856951904 | -16 22 31.763755236 | 10.23 | 9.82 | 8.28 | 8.55 | B9Ia+ | 196 | 1 | |
| 8 | HD 183143 | s*b | 19 27 26.5636061496 | +18 17 45.193019136 | 8.25 | 8.08 | 6.86 | 5.74 | 4.79 | B7Ia+ | 464 | 0 |
| 9 | HD 186745 | sg* | 19 45 24.3491996232 | +23 56 34.374919992 | 8.00 | 7.96 | 7.03 | B8Ia | 108 | 0 | ||
| 10 | HD 190603 | s*b | 20 04 36.1742825304 | +32 13 06.953333016 | 5.73 | 6.19 | 5.65 | 5.13 | 4.71 | B1.5Ia+ | 357 | 0 |
| 11 | HD 195592 | s*b | 20 30 34.9690901208 | +44 18 54.859533372 | 7.75 | 7.95 | 7.08 | 6.29 | 5.60 | O9.7Ia | 221 | 1 |
| 12 | BD+40 4220 | s*b | 20 32 22.4238071594 | +41 18 18.942475904 | 11.32 | 10.61 | 9.185 | O7Iafep | 414 | 0 | ||
| 13 | * 55 Cyg | s*b | 20 48 56.2915921440 | +46 06 50.883645024 | 4.83 | 5.28 | 4.86 | 4.41 | 4.10 | B2.5Ia | 506 | 0 |
| 14 | HD 207198 | Y*? | 21 44 53.2791389640 | +62 27 38.048647248 | 5.61 | 6.25 | 5.94 | 5.66 | 5.49 | O8.5II | 365 | 0 |
| 15 | * 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 | 705 | 1 |
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