[Ne III], [Ne II] and [S III] in NGC 253

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

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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