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Detection of [OI] 63 mu m in absorption toward Sgr B2

Baluteau, JP; Cox, P; Cernicharo, J; Pequignot, D; Caux, E; Lim, T; Swinyard, B; ... Trams, N; + view all (1997) Detection of [OI] 63 mu m in absorption toward Sgr B2. [Letter]. Astronomy & Astrophysics , 322 (3) L33-L36. Green open access

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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 [OI] 63 mu m 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: ISM: abundances – (ISM:) dust, extinction – (ISM:) H II regions – ISM: individual objects: Sgr B2 – Infrared: ISM: continuum – Infrared: ISM: lines and bands
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/10096110
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