NGC3256 - an emerging elliptical galaxy

Astronomy and Astrophysics – Astronomy

Scientific paper

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Astronomical Spectroscopy, Elliptical Galaxies, Galactic Evolution, Peculiar Galaxies, Emission Spectra, Galactic Nuclei, Galactic Structure, Line Spectra, Luminosity, Radio Spectra, Spectral Line Width, Starburst Galaxies

Scientific paper

NGC 3256 is a spectacular peculiar galaxy, with a highly chaotic nuclear region consisting of several bright knots. Two diffuse tidal tails are visible evidence of violent past history. The authors have discovered bright and exceptionally extended 10 μm emission that is evidence for an extremely luminous starburst extending over several kiloparsecs, which will leave the system severely gas-depleted. This depletion, in combination with the violent stellar relaxation which accompanies galaxy mergers, suggests that NGC 3256 will become an elliptical galaxy.

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