2021ApJ...909L..17P

Query : 2021ApJ...909L..17P

2021ApJ...909L..17P - Astrophys. J., 909, L17-L17 (2021/March-2)

The infrared spectrum of protonated C70.

PALOTAS J., MARTENS J., BERDEN G. and OOMENS J.

Abstract (from CDS):

With the detection of C60, C70, and C60+ in the interstellar medium, fullerenes are currently the largest molecules identified in space. The relatively high proton affinities of C60 and C70 support the hypothesis that protonated fullerenes may also be abundant in the interstellar matter. Here, we present the first experimental vibrational spectrum of C70H+, recorded in the gas phase. The attachment of a proton to C70 causes a drastic symmetry lowering, which results in a rich vibrational spectrum. As compared to C60, where all C-atoms are equivalent due to the icosahedral symmetry, C70 belongs to the D5h point group and has five nonequivalent C-atoms, which are available as protonation sites. Combined analysis of the experimental spectrum and spectra computed at the density functional theory level enables us to evaluate the protonation isomers being formed. We compare the IR spectra of C60H+ and C70H+ to IR emission spectra from planetary nebulae, which suggests that a mixture of these fullerene analogs could contribute to their IR emission.

Abstract Copyright: © 2021. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Molecular spectroscopy - Laboratory astrophysics - Interstellar medium

Status at CDS : Large table(s) will be appraised for possible ingestion in VizieR.

Simbad objects: 1

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Number of rows : 1
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 [BE74] 263 LP* 05 23 31.2614782104 -69 04 08.857743024 16.556 17.359 17.124 16.21 17.502 ~ 48 0

Query : 2021ApJ...909L..17P

Basic data :
[BE74] 263 -- Long-Period Variable
Other object types: otypes_help 		PN (2008AJ,Jacoby,...), * (OGLE,UCAC4,...), LP* (2009AcA,OGLE), NIR (2MASS,2MASS6X), MIR (SSTISAGE1C,SSTISAGEMC), PN? (LM), Y*? ([WSI2008]), Em* ([BE74]), EmO (LHA), IR ([GC2009])
ICRS coord. (ep=J2000) : 		05 23 31.2614782104 -69 04 08.857743024 (Optical) [ 0.0333 0.0358 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		05 23 50.2497243555 -69 06 47.195369651 [ 0.0333 0.0358 90 ]
Gal coord. (ep=J2000) : 		279.6610084589713 -33.0171543700730 [ 0.0333 0.0358 90 ]
Proper motions mas/yr : 		1.751 0.409 [0.045 0.046 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) 288.4 [19.5] / z(~) 0.000962 [0.000065] / cz 288.54 [19.50]
   D 2006MNRAS.373..521R
Angular size (arcmin): 		0.166667 0.166667 0 (~) D 2006MNRAS.373..521R
Fluxes (9) :
U 16.556 [0.086] C 2004AJ....128.1606Z
B 17.359 [0.038] C 2004AJ....128.1606Z
V 17.124 [0.036] C 2004AJ....128.1606Z
R 16.21 [0.13] E 2012yCat.1322....0Z
G 16.095079 [0.002941] C 2020yCat.1350....0G
I 17.502 [0.044] C 2004AJ....128.1606Z
J 16.930 [0.03] C 2007PASJ...59..615K
H 12.625 [0.029] C 2003yCat.2246....0C
K 12.462 [0.036] C 2003yCat.2246....0C
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Hierarchy : number of linked objects
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: 1 : 126784 Display criteria :

Identifiers (19) :
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2MASS J05233125-6904084 OGLE LMC161.5 11963 TIC 373526644 [RP2006] 642
Jacoby LMC 37 OGLE LMC-LPV-49762 UCAC4 105-011275 [WSI2008] 614
LHA 120-N 136 SMP LMC 56 [BE74] 263 Gaia DR2 4658116783954204288
LM 2-23 SSTISAGE1C J052331.09-690404.3 [GC2009] J052331.10-690404.7 Gaia DR3 4658116783954204288
2MASS6X J05233111-6904044 SSTISAGEMC J052331.11-690404.6 [H2013] LMCe 739

References (48 between 1850 and 2026) (Total 48)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Velocities : 1    Var : 1    PM : 2   

   

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2MASS J05233125-6904084 SSTISAGEMC J052331.11-690404.6 UCAC4 105-011275 Gaia DR2 4658116783954204288 Gaia DR3 4658116783954204288

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