SIMBAD references

2003ApJ...596L.179G - Astrophys. J., 596, L179-L182 (2003/October-3)

Discovery of a double ring in the dwarf galaxy Markarian 409.

GIL DE PAZ A., MADORE B.F., NOESKE K., CAIROS L.M., PAPADEROS P. and SILICH S.A.

Abstract (from CDS):

We report the discovery of a double ring of emission-line regions around the nucleus of the blue compact dwarf galaxy Mrk 409 as seen by deep, ground-based Hα images. Echelle spectroscopy obtained at Magellan I with MIKE shows the presence of ionized gas flowing out of the galaxy from a very massive (≥7x106 M) nuclear starburst with projected expansion velocities of ∼50 km/s. Different scenarios for the formation of these rings are discussed. While the innermost, nuclear ring is most probably formed by the interaction of a starburst-driven shock with the surrounding interstellar medium, the origin of the outer ring is less clear.

Abstract Copyright:

Journal keyword(s): Galaxies: Dwarf - Galaxies: Evolution - Galaxies: Individual: Name: Markarian 409 - Galaxies: Individual: NGC Number: NGC 3011 - Galaxies: Kinematics and Dynamics - Galaxies: Starburst

Simbad objects: 2

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2020.01.21-20:48:27

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