Cox, P;
GonzalezAlfonso, E;
Barlow, MJ;
Liu, XW;
Lim, T;
Swinyard, BM;
Cernicharo, J;
... Serra, G; + view all
(1996)
The ISO/LWS spectrum of the Egg nebula, AFGL 2688.
Astronomy & Astrophysics
, 315
(2)
L265-L268.
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Abstract
We present an ISO Long Wavelength Spectrometer (LWS) grating spectrum of the carbon-rich proto-planetary nebula AFGL 2688 between 43 and 194μm. The far-infrared spectrum of AFGL 2688 is dominated by strong rotational transitions of CO which are detected from J=14-13 up to J=23-22. The atomic fine structure lines [O I] and [C II] are not detected. This is consistent with the cool central star of AFGL 2688 not having yet photodissociated the molecular gas ejected during the AGB phase. The far-infrared CO emission in AFGL 2688 appears to originate in shocked dense gas at a temperature of ~400K.
Type: | Article |
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Title: | The ISO/LWS spectrum of the Egg nebula, AFGL 2688 |
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: | planetary nebulae, general, planetary nebulae, individual (AFGL 2688), interstellar medium, molecules, CRL-2688, DUST, AFGL-2688 |
UCL classification: | UCL 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/10096121 |
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