2002ApJ...567L.145M

Query : 2002ApJ...567L.145M

2002ApJ...567L.145M - Astrophys. J., 567, L145-L148 (2002/March-2)

A critical examination of the l-C3H–2 spectrum and the diffuse interstellar bands.

McCALL B.J., OKA T., THORBURN J., HOBBS L.M. and YORK D.G.

Abstract (from CDS):

It has recently been suggested by J. P. Maier's group that the origin band and three vibronic bands of the linear propadienylidene anion l-C3H–2 match the diffuse interstellar bands (DIBs). We have examined the wavelength ranges in question using data from our ongoing DIB survey at the Apache Point Observatory. We find that the strongest DIB (λ6993) is not an acceptable wavelength match to the origin band of l-C3H–2, based on high-resolution laboratory data. The nondetection of interstellar features corresponding to the K=2⟵1 and K=0⟵1 branches of para l-C3H–2 also argues against the assignment of λ6993 to the K=1⟵0 branch of ortho l-C3H–2. Two of the three DIBs that have been attributed to vibronic bands do not correlate in intensity with λ6993, providing further evidence against the assignment of this set of DIBs to l-C3H–2.

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Journal keyword(s): ISM: Molecules - Line: Identification - Methods: Laboratory - Molecular Data

Simbad objects: 14

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Number of rows : 14
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 HD 20041 * 03 15 47.9705004096 +57 08 26.243459556 6.61 6.52 5.79     A0Ia 146 1
2 * chi02 Ori s*b 06 03 55.1843706432 +20 08 18.428141364 4.24 4.91 4.63 4.32 4.10 B2Ia 465 0
3 HD 50064 s*b 06 51 34.1059967736 +00 17 50.466003216 8.75 9.06 8.30 7.51 6.88 B5Ia+ 87 1
4 HD 147889 Or* 16 25 24.3163637976 -24 27 56.569805208 8.56 8.73 7.90     B2V 512 1
5 * zet Oph Be* 16 37 09.5400587698 -10 34 01.509742704 1.73 2.58 2.56 2.46 2.50 O9.2IVnn 1908 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 183143 s*b 19 27 26.5636061496 +18 17 45.193019136 8.25 8.08 6.86 5.74 4.79 B7Ia+ 464 0
8 HD 192639 s*b 20 14 30.4275801672 +37 21 13.816276704 6.83 7.46 7.11     O7.5Iabf 309 0
9 HD 229059 s*b 20 21 15.3643937664 +37 24 31.106402136 10.66 10.23 8.70     B2Iabe 102 0
10 BD+40 4220 s*b 20 32 22.4238071594 +41 18 18.942475904 11.32 10.61 9.185     O7Iafep 414 0
11 Schulte 12 s*b 20 32 40.9572199728 +41 14 29.279036940 16.1 14.45 11.702     B3-4Ia+ 453 0
12 HD 206267 Y*O 21 38 57.6195772032 +57 29 20.554016280 5.09 5.83 5.62   5.56 O6.0V((f))+O9:V 520 0
13 * 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
14 BD+63 1964 s*b 23 17 21.5626507224 +64 07 16.165682868 8.79 9.05 8.5     B0Iab 91 0

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