Upper limit on C60 and C60+ features in the ISO-SWS spectrum of the reflection nebula NGC 7023

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dc.creatorMoutou, C.
dc.creatorSellgren, K.
dc.creatorVerstraete, L.
dc.creatorLeger, A.
dc.date1999-05-28
dc.date.accessioned2026-07-07T02:31:45Z
dc.date.available2026-07-07T02:31:45Z
dc.descriptionWe present here the 7.0-8.7 micron spectrum of the bright reflection nebula NGC 7023. Our observations are made with the Short Wavelength Spectrometer (SWS) on the European satellite Infrared Space Observatory (ISO). The vibrational bands of the ionized fullerene C60+ are expected at 7.11 and 7.51 microns, while those of the neutral fullerene C60 are expected at 7.0 and 8.45 microns. We estimate an upper limit in NGC 7023 for the C60+ abundance of <0.26% of the interstellar abundance of carbon, while C60 contains <0.27% of interstellar carbon.
dc.description14 pages, 3 figures, accepted by A&A
dc.identifierhttps://arxiv.org/abs/astro-ph/9905374
dc.identifierhttp://arxiv.org/abs/astro-ph/9905374
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/14265
dc.subjectAstrophysics
dc.titleUpper limit on C60 and C60+ features in the ISO-SWS spectrum of the reflection nebula NGC 7023
dc.typetext

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