A Model of the Tidal Interaction Between M81 and NGC3077

Details A Model of the Tidal Interaction Between M81 and NGC3077 A Model of the Tidal Interaction Between M81 and NGC3077

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...272..153t&link_type=abstract

Astronomy and Astrophysics, Vol.272, NO. 1/MAYI, P. 153, 1993

Astronomy and Astrophysics

Astrophysics

29

Scientific paper

We have modelled the tidal interaction between M 81 and NGC 3077, and found that the spiral arms of M 81 and the bridge of H I between M 81 and NGC 3077 can be the results of a close encounter between the two galaxies. A good fit to observations is found with a model where NGC 3077 moves in an approximately parabolic prograde orbit in the plane of the disc of M 81. Since our model does not include M 82 or the other members of the M 81 group, it cannot give a complete description of the complex dynamics of, e.g., the intergalactic gas in the group.

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