Liu, XW;
Barlow, MJ;
Danziger, IJ;
Storey, PJ;
(1995)
Balmer Discontinuity Temperatures in the Orion Nebula.
The Astrophysical Journal Letters
, 450
(2)
L59-L62.
10.1086/316775.
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Abstract
We have mapped the Balmer discontinuity temperature Te (BJ) along two long-slit positions in the Orion Nebula, using high-quality spectra obtained with the ESO 1.52 m telescope and with the 3.9 m AAT. One slit was oriented north-south and positioned 40” west of Ö1 C Ori. The second slit was oriented east-west, with its eastern end 10" west of Ö1 C Ori, identical to the slit position previously studied by Walter & Dufour (1994). For the NS slit, both the 1.52 m and the AAT data yield a constant temperature of about 9000 K, with variations of only a few hundred K over a total slit length of about 3#5. For the EW-slit, our data reveal two distinct regions of nearly constant temperatures of 8900 and 7200 K, respectively, possibly resulting from two separate H II regions. No evidence is found for the anomalously low temperatures reported by Walter and Dufour for the same region. © 1995, IOP Publishing Ltd.
| Type: | Article |
|---|---|
| Title: | Balmer Discontinuity Temperatures in the Orion Nebula |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1086/316775 |
| Publisher version: | https://doi.org/10.1086/316775 |
| 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. |
| 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/10096167 |
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