Bannister, ME;
Cox, P;
Cernicharo, J;
Pequignot, D;
Caux, E;
Lim, T;
Barlow, MJ;
... Glencross, WB; + view all
(1997)
Detection of [O I] 63um in absorption toward Sgr B2.
Astronomy and Astrophysics
, 322
L33-L36.
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Abstract
A high signal-to-noise 52-90 µm spectrum is presented for the central part of the Sagittarius B2 complex. The data were obtained with the Long Wavelength Spectrometer on board the Infrared Space Observatory (ISO). The [O I] 63 µm line is detected in absorption even at the grating spectral resolution of 0.29 µm. A lower limit for the column density of atomic oxygen of the order of [FORMULA] cm-2 is derived. This implies that more than 40% of the interstellar oxygen must be in atomic form along the line of sight toward the Sgr B2 molecular cloud.
| Type: | Article |
|---|---|
| Title: | Detection of [O I] 63um in absorption toward Sgr B2 |
| Open access status: | An open access version is available from UCL Discovery |
| Publisher version: | http://aa.springer.de/bibs/7322003/2300l33/small.h... |
| 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: | absorption, abundances, detection, dust, extinction, H II regions |
| 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/10096111 |
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