Preliminary Results of ISO Observations of NGC 891

Astronomy and Astrophysics – Astronomy

Scientific paper

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Scientific paper

We present preliminary results of ISO observations of the edge-on galaxy NGC 891. We present images in 9 different wavebands corresponding to the central wavelengths: 4.5, 6.0, 6.7, 6.8, 7.7, 9.6, 11.3, 14.3, and 14.9um. Some of these illustrate characteristic PAH emission. We pay special attention to emission seen in the halo region of this galaxy, as NGC 891 is well known to have halo emission in H alpha, HI, and X-ray wavebands. These previous results indicate that there is diffuse ionized gas, neutral gas, and dust in the halo of NGC 891. We compare our results to these previous observations.

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