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Paper: [Ne III], [Ne II] and [S III] in NGC 253
Volume: 357, The Spitzer Space Telescope: New Views of the Cosmos
Page: 213
Authors: Devost, D.; Brandl, B.R.; Armus, L.
Abstract: We present a spatial analysis of the inner region of NGC253 using observations with the IRS. The short-hi (SH) and long-hi (LH) spectra are extracted at three positions on the galaxy. The spectra show a soft radiation field and a low electronic density which is inconsistent with the high pressure of the Interstellar Medium (ISM) being responsible for the observed Neon line ratio.
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