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The ISO/LWS far infrared spectrum of IRC+10216

Cernicharo, J; Barlow, MJ; Gonzalez-Alfonso, E; Cox, P; Clegg, PE; Nguyen-Q-Rieu, ; Omont, A; ... Trams, N; + view all (1996) The ISO/LWS far infrared spectrum of IRC+10216. Astronomy & Astrophysics , 315 (2) L201-L204. Green open access

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Abstract

We present an ISO Long Wavelength Spectrometer (LWS) grating spectrum of the carbon-rich circumstellar envelope -CSE- of IRC+10216 between 43 and 197μm. The spectrum consists of strong dust emission plus a forest of emission lines from CO, HCN, H^13^CN and vibrationally excited HCN (ν_2_=1^1^,2^0,2^ and ν_1,3_=1). All the CO lines between J=14-13 and J=39-38 have been detected while lines of HCN with J_u_ as high as 48 have also been observed. The molecular emission arises from the warm and dense gas located in the innermost zone of the CSE. The CO and HCN emission can be easily explained if the vibrational and rotational temperatures are around 700-1500 K. We also report the tentative detection of the bending mode of the C_3_ molecule around 62cm^-1^ (157.2μm).

Type: Article
Title: The ISO/LWS far infrared spectrum of IRC+10216
Open access status: An open access version is available from UCL Discovery
Publisher version: https://ui.adsabs.harvard.edu/abs/1996A%26A...315L...
Language: English
Additional information: This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: stars: AGB and post AGB; stars: individual: IRC+10216; stars: circumstellar matter; infrared: stars
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy
URI: https://discovery.ucl.ac.uk/id/eprint/10095244
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