Further evidence for an explosive event in the peculiar galaxy NGC 1569

Details Further evidence for an explosive event in the peculiar galaxy NGC 1569 Further evidence for an explosive event in the peculiar galaxy NGC 1569

Dec 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974apj...194l.119d&link_type=abstract

Astrophysical Journal, vol. 194, Dec. 15, 1974, pt. 2, p. L119-L123.

Astronomy and Astrophysics

Astronomy

54

Galactic Nuclei, H Alpha Line, Mass Transfer, Peculiar Galaxies, Radio Astronomy, Astronomical Models, Fabry-Perot Interferometers, Galactic Structure, Microwave Interferometers, Radial Velocity, Stellar Evolution, Velocity Distribution

Scientific paper

The suggestion originally made by Zwicky and independently by Hodge that the H-alpha emission filaments in the dwarf Magellanic irregular NGC 1569 are the aftermath of an explosive event is supported by a discussion of available photometric, spectroscopic, and radio data and by a new interferometric study. A tentative model of the galaxy and exploded filaments is presented. Residual radial velocities of up to plus or minus 60 km/sec are observed, suggesting an expansion age of 10-20 million years.

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