Astronomy and Astrophysics – Astrophysics
Scientific paper
1995-06-07
Astronomy and Astrophysics
Astrophysics
15 pages plus 9 figures, uuencoded encapsulated postscript file. Accepted for publication in MNRAS
Scientific paper
We report the results of an X-ray spectral imaging observation of the Antennae with the ROSAT PSPC. 55% of the soft X-ray flux from the system is resolved into discrete sources, including components identified with the galactic nuclei and large HII regions, whilst the remainder appears to be predominantly genuinely diffuse emission from gas at a temperature ~4x10^6 K. The morphology of the emission is unusual, combining a halo which envelopes the galactic discs, with what appears to be a distorted, but well-collimated bipolar outflow. We derive physical parameters for the hot gas in both diffuse components, which are of some interest, given that the Antennae probably represents an elliptical galaxy in the making.
Ponman Trevor J.
Read Andrew M.
Wolstencroft Ramon D.
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