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arXiv:astro-ph/9506047 (astro-ph)
[Submitted on 7 Jun 1995]

Title:The X-ray properties of the merging galaxy pair NGC 4038/9 - the Antennae

Authors:A.M. Read, T.J. Ponman (University of Birmingham, U.K), R.D. Wolstencroft (ROE, Edinburgh, U.K.)
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Abstract: 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.
Comments: 15 pages plus 9 figures, uuencoded encapsulated postscript file. Accepted for publication in MNRAS
Subjects: Astrophysics (astro-ph)
Cite as: arXiv:astro-ph/9506047
  (or arXiv:astro-ph/9506047v1 for this version)
  https://doi.org/10.48550/arXiv.astro-ph/9506047
Related DOI: https://doi.org/10.1093/mnras/277.2.397

Submission history

From: Andy Read [view email]
[v1] Wed, 7 Jun 1995 15:39:30 UTC (265 KB)
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