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Radio recombination lines from starburts: NGC 3256, NGC 4945 and the circinus galaxy

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dc.contributor.authorRoy, A L
dc.contributor.authorGoss, W M
dc.contributor.authorMohan, Niruj R
dc.contributor.authorOosterloo, T A
dc.contributor.authorAnantharamaiah, K R
dc.date.accessioned2011-08-23T10:01:01Z
dc.date.available2011-08-23T10:01:01Z
dc.date.issued2005-08
dc.descriptionRestricted Access. An open-access version is available at arXiv.org (one of the alternative locations)en
dc.description.abstractA renewed attempt to detect radio recombination lines from external galaxies has resulted in the measurement of lines from several bright starburst galaxies. The lines are produced by hydrogen ionized by young, high-mass stars and are diagnostic of the conditions and gas dynamics in the starburst regions without problems of dust obscuration. We present here detections of the lines H91α and H92α near 8.6 GHz from the starburst nuclei in NGC 3256, NGC 4945, and the Circinus galaxy using the ATCA and VLA. Modelling the line emitting region as a collection of H II regions, we derive the required number of H II regions, their temperature, density, and distribution.en
dc.identifier.citationAIP Conference Proceedings, 2005, Vol.783, p303en
dc.identifier.urihttp://hdl.handle.net/2289/4127
dc.language.isoenen
dc.publisherScientific and Technical Information for NASAen
dc.relation.urihttp://adsabs.harvard.edu/abs/2005AIPC..783..303Ren
dc.relation.urihttp://arxiv.org/abs/astro-ph/0411115en
dc.relation.urihttp://dx.doi.org/ 10.1063/1.2034998en
dc.rights2005, Scientific and Technical Informationen
dc.subjectgalaxiesen
dc.subjectH II regionsen
dc.subjectStarburst galaxiesen
dc.subjectinfrared excess galaxiesen
dc.subjectemission and reflection nebulaeen
dc.titleRadio recombination lines from starburts: NGC 3256, NGC 4945 and the circinus galaxyen
dc.typeArticleen

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