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Radio Continuum Observations of NGC 1961: Interaction with the Intergalactic Medium or the Remnant of a Merger?

Published online by Cambridge University Press:  25 May 2016

U. Lisenfeld ,
P. Alexander  and
G. Pooley
U. Lisenfeld
Affiliation:
Universidad de Granada, Spain
P. Alexander
Affiliation:
MRAO, Cavendish Laboratory, Cambridge, UK
G. Pooley
Affiliation:
MRAO, Cavendish Laboratory, Cambridge, UK

Extract

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We present new radio continuum images of the supermassive, peculiar galaxy NGC 1961 at 1.5, 4.9, 8.4 and 15 GHz. NGC 1961 (Arp 184) is a very massive (dynamical mass > 1012M⊙) Sb galaxy with a peculiar and asymmetric optical appearance. Furthermore, it exhibits an unusual, asymmetric HI distribution with an extensive wing of gas extending 30 kpc to the north-west and a sharp edge to the south-east (Shostak et al. 1982).

Type
Tidal Interactions
Information
Symposium - International Astronomical Union , Volume 186: Galaxy Interactions at High and Low Redshift , 1999 , pp. 132
Copyright
Copyright © Kluwer 1999 

References

Lisenfeld, U., Alexander, P., Pooley, G.G., & Wilding, T. 1998, MNRAS, submitted Google Scholar
Shostak, G.S., Hummel, E., Shaver, P.A., van der Hulst, J.M., & van der Kruit, P.C. 1982, A&A, 115, 293 Google Scholar