VLBI observations of the OH megamaser in IC 4553 (ARP 220)

Details VLBI observations of the OH megamaser in IC 4553 (ARP 220) VLBI observations of the OH megamaser in IC 4553 (ARP 220)

May 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...340l..49d&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 340, May 15, 1989, p. L49-L52.

Astronomy and Astrophysics

Astrophysics

38

Hydroxyl Emission, Interstellar Masers, Peculiar Galaxies, Seyfert Galaxies, Very Long Base Interferometry, Active Galactic Nuclei, Infrared Radiation, Power Spectra, Red Shift, Starburst Galaxies

Scientific paper

IC 4553 (Arp 220) is an infrared-luminous galaxy at a redshift of 0.018 which shows characteristics of both Seyfert and starburst activity and is believed to be the result of a recent merger. It is also distinguished by its OH megamaser which is one of the most luminous OH masers discovered. The VLBI observations of the OH reported here reveal compact structure in the megamaser which is consistent with the suggested presence of two Seyfert nuclei in IC 4553.

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