The X-ray properties of the merging galaxy pair NGC 4038/9 – the Antennae
| Autor: | R. D. Wolstencroft, Trevor J. Ponman, A. M. Read |
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| Rok vydání: | 1995 |
| Předmět: |
Physics
medicine.medical_specialty Astrophysics::High Energy Astrophysical Phenomena Astrophysics (astro-ph) FOS: Physical sciences Astronomy Flux Astronomy and Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics Astrophysics Galaxy Spectral imaging Galactic halo Space and Planetary Science Bipolar outflow ROSAT Elliptical galaxy medicine Halo Astrophysics::Galaxy Astrophysics |
| Zdroj: | Monthly Notices of the Royal Astronomical Society. 277:397-412 |
| ISSN: | 1365-2966 0035-8711 |
| DOI: | 10.1093/mnras/277.2.397 |
| Popis: | 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. Comment: 15 pages plus 9 figures, uuencoded encapsulated postscript file. Accepted for publication in MNRAS |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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