Bibcode
Richards, A. M. S.; Cohen, R. J.; Cole, G. H.; Holloway, A. J.; Pedlar, A.; Collett, J. L.; Knapen, J. H.; Yates, J. A.; Field, D.; Gray, M. D.; Mundell, C. G.; Wright, M. M.
Bibliographical reference
Galaxies and their Constituents at the Highest Angular Resolutions, Proceedings of IAU Symposium #205, held 15-18 August 2000 at Manchester, United Kingdom. Edited by R. T. Schilizzi, 2001, p. 212.
Advertised on:
1
2001
Citations
2
Refereed citations
2
Description
Mrk 273 and Mrk 231 are ultra-luminous IR galaxies which show signs of
merger activity. Their radio continuum, HI and OH maser emission has
been imaged on scales of tens of parsec using MERLIN. Mrk 273 and Mrk
231 are classed as Sy 2 and Sy 1 respectively. The distribution of
material and velocity gradients shown by OH masers and HI absorption are
consistent with material in a rotating disk or ring. In Mrk 273 the axis
is at greater than 45 degrees to the line of sight; in Mrk 231 it is at
less than 45 degrees to the line of sight. The amount of mass enclosed
is estimated, and its distribution is inferred from irregularities in
the masers and comparison with the HI and radio continuum data.