The massive star-forming region G323.74-0.26 Walsh, A en_US Lee, Jung en_US Burton, Michael en_US 2021-11-25T12:58:33Z 2021-11-25T12:58:33Z 2002 en_US
dc.description.abstract We report near-infrared molecular hydrogen and Brackett observations towards the massive star formation site G323.74-0.26. The region contains an H ii region, 30 arcsec across, and two Class II methanol maser sites, which are separate from the H ii region. We show that the spectral type of the star powering the H ii region is B0. We also show that at least one of the maser sites is powered by an infrared source that appears to be at least as luminous as the star responsible for the H ii region. However, neither of the two stars associated with the methanol maser sites shows any signs of radio continuum emission above 0.2 mJy. For at least one of these maser sites, this shows a real deficiency in the radio continuum flux, which we suggest is an indication that the star is in an early stage of development, before its H ii region becomes visible, or it is a multiple intermediate mass star system. A shocked molecular hydrogen outflow is seen extending from one of the maser sites towards the west and possibly in a fan shape, suggesting that the stars associated with the maser sites are indeed at a very early stage of evolution. en_US
dc.identifier.issn 0035-8711 en_US
dc.language English
dc.language.iso EN en_US
dc.rights CC BY-NC-ND 3.0 en_US
dc.rights.uri en_US
dc.source Legacy MARC en_US
dc.title The massive star-forming region G323.74-0.26 en_US
dc.type Journal Article en
dcterms.accessRights metadata only access
dspace.entity.type Publication en_US
unsw.identifier.doiPublisher en_US
unsw.relation.faculty Science
unsw.relation.ispartofjournal Monthly Notices of the Royal Astronomical Society en_US
unsw.relation.ispartofpagefrompageto 475-480 en_US
unsw.relation.ispartofvolume 329 en_US
unsw.relation.originalPublicationAffiliation Walsh, A en_US
unsw.relation.originalPublicationAffiliation Lee, Jung, Physics, Faculty of Science, UNSW en_US
unsw.relation.originalPublicationAffiliation Burton, Michael, Physics, Faculty of Science, UNSW en_US School of Physics *
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