2001A&A...377.1063G


Query : 2001A&A...377.1063G

2001A&A...377.1063G - Astronomy and Astrophysics, volume 377, 1063-1067 (2001/10-3)

The problem of C7 as source of diffuse interstellar bands revisited.

GALAZUTDINOV G., MUSAEV F., NIRSKI J. and KRELOWSKI J.

Abstract (from CDS):

We used spectra of several bright, reddened stars, most of them likely to be obscured by individual interstellar clouds, to examine the proposition that C7 may carry several diffuse interstellar bands (DIBs) (Tulej et al., 1998ApJ...506L..69T). To search for the broad features of the C7B ← X system we used low resolution, very high S/N spectra, but even in heavily reddened objects the predicted bands remain undetectable. High resolution (R=80000) spectra prove that the diffuse bands, found in close vicinity of narrow lines belonging to the A ← X system, show variable strength ratios from object to object which proves that they are not of the same origin. The paper brings thus evidence that the C7 molecule does not cause any of the detected DIBs.

Abstract Copyright:

Journal keyword(s): ISM: clouds, molecules

Simbad objects: 15

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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 - 2021
#notes
1 * omi Per ** 03 44 19.13204 +32 17 17.6929 3.13 3.88 3.83 3.71 3.71 B1III 578 0
2 * zet Per V* 03 54 07.9224751 +31 53 01.081262 2.19 2.97 2.85 2.71 2.62 B1Ib 821 0
3 V* X Per HXB 03 55 23.0778791365 +31 02 45.045745259 6.090 6.840 6.720     O9.5III 923 0
4 * ksi Per ** 03 58 57.9022917 +35 47 27.713205 3.190 4.080 4.060 3.88 3.89 O7.5III(n)((f)) 799 0
5 * 15 Mon Be* 06 40 58.65963 +09 53 44.7229 3.360 4.400 4.640   4.88 O7V+B1.5/2V 761 0
6 * alf Vir bC* 13 25 11.57937 -11 09 40.7501 -0.20 0.74 0.97 1.06 1.30 B1V 833 2
7 * eta UMa PM* 13 47 32.43776 +49 18 47.7602 0.99 1.67 1.86 1.98 2.16 B3V 585 0
8 * 67 Oph * 18 00 38.7134668813 +02 55 53.595379606 3.34 3.96 3.93 3.84 3.81 B5I 390 0
9 * 20 Aql V* 19 12 40.7120091092 -07 56 22.265045969 5.03 5.47 5.34     B2/3II 217 0
10 HD 183143 s*b 19 27 26.5636908636 +18 17 45.191198361 8.25 8.08 6.86 5.74 4.79 B6Ia 416 0
11 HD 190603 s*b 20 04 36.1744053423 +32 13 06.952102252 5.73 6.19 5.65 5.13 4.71 B1.5Ia 327 0
12 * 9 Cep Pu* 21 37 55.2235288899 +62 04 54.993364177 4.49 5.03 4.73 4.42 4.24 B2Ib 290 0
13 HD 207198 * 21 44 53.2790298387 +62 27 38.042162728 5.61 6.25 5.94 5.66 5.49 O8.5II 328 0
14 * 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 656 1
15 * alf Peg PM* 23 04 45.65345 +15 12 18.9617 2.38 2.44 2.48 2.47 2.50 B9III 346 0

    Equat.    Gal    SGal    Ecl

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2021.07.29-18:20:25

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