Liu, XW;
Barlow, MJ;
NguyenQRieu;
TruongBach;
Cox, P;
Pequignot, D;
Clegg, PE;
... Trams, N; + view all
(1996)
The ISO LWS grating spectrum of NGC 7027.
Astronomy & Astrophysics
, 315
(2)
L257-L260.
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Abstract
We present a high signal-to-noise ISO Long Wavelength Spectrometer (LWS) grating spectrum of the planetary nebula NGC 7027 from 43-194μm. In total 40 emission lines have been detected, with 30 identified. From the ionized region, we observe fine-structure lines from [N II], [N III] and [O III]. The [O I] and [C II] fine-structure lines from the photodissociation region are the strongest features observed in this spectral region. Amongst the molecular lines, 11 pure rotation CO lines from J=14-13 up to J=24-23 have been detected. The most striking result, however, is the detection in this carbon-rich nebula of the o-H_2_O 179.53μm and the OH 119.3μm fundamental lines. Astrophysical implications are briefly discussed.
| Type: | Article |
|---|---|
| Title: | The ISO LWS grating spectrum of NGC 7027 |
| 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: | Science & Technology, Physical Sciences, Astronomy & Astrophysics, planetary nebulae, general, planetary nebulae, individual, NGC 7027, ISM, atoms, ISM, molecules, PLANETARY-NEBULAE, NGC-7027, EMISSION |
| 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/10096122 |
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