A compact starburst ring traced by clumpy OH megamaser emission

A compact starburst ring traced by clumpy OH megamaser emission

We model the OH megamaser emission from the luminous infrared galaxy IIIZw35 as arising from a narrow rotating starburst ring of radius 22 pc enclosing a mass of 7 . We show how both the compact and apparently diffuse maser emission from this ring can arise from a single phase of unsaturated maser c...

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Veröffentlicht in:Astronomy and astrophysics (Berlin) 2005-11, Vol.443 (2), p.383-396
Hauptverfasser: Parra, R., Conway, J. E., Elitzur, M., Pihlström, Y. M.
Format: Artikel
Sprache:eng
Schlagworte:
galaxies: individual: IIIZw35
galaxies: starburst
masers
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Zusammenfassung:We model the OH megamaser emission from the luminous infrared galaxy IIIZw35 as arising from a narrow rotating starburst ring of radius 22 pc enclosing a mass of 7 . We show how both the compact and apparently diffuse maser emission from this ring can arise from a single phase of unsaturated maser clouds amplifying background radio continuum. The masing clouds are estimated to have a diameter of
ISSN:0004-6361
1432-0746
DOI:10.1051/0004-6361:20052971