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dc.contributor.authorYates, J.A.
dc.contributor.authorRichards, A.M.S.
dc.contributor.authorWright, M.M.
dc.contributor.authorCollett, J.
dc.contributor.authorGray, M.D.
dc.contributor.authorField, D.
dc.contributor.authorCohen, R.J.
dc.date.accessioned2009-05-14T14:02:08Z
dc.date.available2009-05-14T14:02:08Z
dc.date.issued2000
dc.identifier.citationYates , J A , Richards , A M S , Wright , M M , Collett , J , Gray , M D , Field , D & Cohen , R J 2000 , ' Resolved OH megamaser emission in the nuclear region of the ultraluminous infrared galaxy Markarian 273 ' , Monthly Notices of the Royal Astronomical Society , vol. 317 , no. 1 . https://doi.org/10.1046/j.1365-8711.2000.03519.x
dc.identifier.issn0035-8711
dc.identifier.otherdspace: 2299/3385
dc.identifier.urihttp://hdl.handle.net/2299/3385
dc.description‘The definitive version is available at www.blackwell-synergy.com.’ Copyright Blackwell Publishing/ Royal Astronomical Society. DOI: 10.1046/j.1365-8711.2000.03519.x [Full text of this article is not available in the UHRA]
dc.description.abstractWe present high angular resolution MERLIN observations of the 18-cm OH maser and continuum emission associated with the active core of the ultraluminous infrared galaxy Markarian 273. The continuum emission comes from three distinct regions in the central arcsecond of the galaxy. The brightest region of emission has a double-peaked structure which is spatially coincident with similar structures observed at 6 cm and 2.2 μm. The peak of the OH maser emission is spatially coincident with the peak in the continuum. For the first time the maser emission is spatially resolved, allowing us to measure the gas motion within the central 100 pc of the galaxy. Maser emission is found in both the 1665- and 1667-MHz lines, with no systematic offset found in the spatial locations of the two lines. The brighter component of the maser emission shows ordered motion and is aligned along the axis of the double-peaked structure in the brightest continuum region. The gas motion enables us to estimate the central mass density to be 850±50 M⊙ pc−3, which corresponds to a total mass of ≈1.5×108 M⊙.en
dc.language.isoeng
dc.relation.ispartofMonthly Notices of the Royal Astronomical Society
dc.titleResolved OH megamaser emission in the nuclear region of the ultraluminous infrared galaxy Markarian 273en
dc.contributor.institutionSchool of Physics, Astronomy and Mathematics
dc.contributor.institutionSchool of Physics, Engineering & Computer Science
dc.contributor.institutionDepartment of Physics, Astronomy and Mathematics
dc.contributor.institutionCentre for Astrophysics Research (CAR)
dc.description.statusPeer reviewed
rioxxterms.versionofrecord10.1046/j.1365-8711.2000.03519.x
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue


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