2017ApJ...845...76Z


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.05CEST06:42:25

2017ApJ...845...76Z - Astrophys. J., 845, 76-76 (2017/August-2)

Search for hydrogenated C60 (fulleranes) in circumstellar envelopes.

ZHANG Y., SADJADI S., HSIA C.-H. and KWOK S.

Abstract (from CDS):

The recent detection of fullerene (C60) in space and the positive assignment of five diffuse interstellar bands to C60+ reinforce the notion that fullerene-related compounds can be efficiently formed in circumstellar envelopes and be present in significant quantities in the interstellar medium. Experimental studies have shown that C60 can be readily hydrogenated, raising the possibility that hydrogenated fullerenes (or fulleranes, C60Hm, m = 1-60) may be abundant in space. In this paper, we present theoretical studies of the vibrational modes of isomers of C60Hm. Our results show that the four mid-infrared bands from the C60 skeletal vibrations remain prominent in slightly hydrogenated C60, but their strengths diminish in different degrees with increasing hydrogenation. It is therefore possible that the observed infrared bands assigned to C60 could be due to a mixture of fullerenes and fulleranes. This provides a potential explanation for the observed scatter of the C60 band ratios. Our calculations suggest that a feature around 15 µm due to the breathing mode of heavily hydrogenated C60 may be detectable astronomically. A preliminary search for this feature in 35 C60 sources is reported.

Abstract Copyright: © 2017. The American Astronomical Society. All rights reserved.

Journal keyword(s): astrochemistry - circumstellar matter - infrared: stars - ISM: lines and bands - ISM: lines and bands

Simbad objects: 38

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Number of rows : 38

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 LIN 49 PN 00 43 53.887 -72 55 14.79   16.3 17.1 16.7 16.91 ~ 15 0
2 LHA 115-N 38 PN 00 49 51.6437069650 -73 44 21.387841921   16.1 15.382   16.913 ~ 47 0
3 LHA 115-N 43 PN 00 51 07.37 -73 57 37.7   15.96 15.341   16.444 ~ 34 0
4 LHA 115-N 42 PN 00 51 27.14 -72 26 11.7   16.32 16.741   16.922 ~ 57 0
5 LHA 115-N 47 PN 00 51 58.311 -73 20 31.87     16.158   16.17 ~ 48 0
6 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9440 1
7 LHA 115-N 54 PN 00 56 05.3847747904 -70 19 25.879243990   16.0       ~ 34 0
8 LHA 115-N 70 PN 00 59 16.1276399798 -72 01 59.850577842   16.07 16.016   16.916 ~ 44 0
9 GSC 04501-00166 pA* 01 04 45.5102402311 +79 26 46.354274761   11.04 10.87 10.85   B1.7Ibeq 68 0
10 LHA 115-N 87 PN 01 21 10.6560090246 -73 14 34.851943244   15.94 15.553   16.758 ~ 43 0
11 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5665 1
12 SMP LMC 2 PN 04 40 56.6962643052 -67 48 02.164617291 15.972 17.130 17.016   17.341 ~ 35 0
13 SMP LMC 25 Em* 05 06 23.9130878469 -69 03 19.145247628 15.264 15.831 14.897 16.42 16.292 ~ 38 0
14 LHA 120-N 123 PN 05 20 09.5143338594 -69 53 39.143342946 15.380 16.445 15.106 15.57 16.095 ~ 45 0
15 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 14826 1
16 IC 418 PN 05 27 28.2060343141 -12 41 50.282659007   9.78 13.0     O7fp 1000 2
17 LHA 120-N 221 PN 06 18 58.024 -71 35 50.52   16.05       ~ 40 0
18 2MASS J06314796+0419381 Y*? 06 31 47.9677650422 +04 19 38.173593318           ~ 5 0
19 PN M 1-6 PN 06 35 45.1225761631 -00 05 37.414428023     15.84     O6-9I 108 1
20 V* V382 Aur pA* 06 37 52.4275241570 +53 31 01.954746267   9.54 9.04     F7IV: 118 0
21 V* PS Gem pA* 07 03 39.6306725638 +10 46 13.076555664   7.76 7.37     A0 106 0
22 PN M 1-9 PN 07 05 19.2001371201 +02 46 59.443071335           ~ 86 0
23 PN M 1-11 PN 07 11 16.6940677796 -19 51 02.897395901     13.5     WC10-11 136 0
24 PN M 1-12 PN 07 19 21.4686621026 -21 43 55.406123858     14.08     WC10-11 110 0
25 PN SaSt 2-3 PN 07 48 03.6731834801 -14 07 40.425767471           B 34 0
26 HD 89353 pA* 10 18 07.5892879413 -28 59 31.194541133   5.76 5.53     B9.5Ib/II 287 0
27 HD 97300 Ae* 11 09 50.0178181814 -76 36 47.711452436   9.41 9.20   8.82 B9V 157 1
28 WRAY 16-94 PN 11 31 45.4622251905 -65 58 14.158577586     14.30     ~ 60 0
29 V* DY Cen RC* 13 25 34.0847442636 -54 14 43.129740133     12.00     C-Hd/B5-6Ie 86 0
30 PN M 1-20 PN 17 28 57.612 -19 15 53.94           ~ 120 0
31 V* XX Oph ** 17 43 56.4967929636 -06 16 08.787105588 10.51 9.81 8.59     M5IIe+Aep 139 0
32 SSTGC 372630 Y*? 17 44 42.76 -29 23 16.2           ~ 5 0
33 PN Tc 1 PN 17 45 35.2877697798 -46 05 23.713203258   11.30 11.49     PCyg 240 0
34 ISOGAL-P J174639.6-284126 Y*? 17 46 39.67 -28 41 27.8           ~ 5 0
35 PN M 1-60 PN 18 43 38.13 -13 44 48.9           [WC4] 79 0
36 PN K 3-54 PN 20 04 58.6342762772 +25 26 37.273474873           ~ 40 0
37 NGC 7023 RNe 21 01 36.9 +68 09 48           ~ 630 0
38 PN K 3-62 PN 21 31 50.18 +52 33 51.6           ~ 74 1

    Equat.    Gal    SGal    Ecl

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2020.07.05-06:42:25

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