New giant H II regions in the southern sky

dc.creatorFirpo, Verónica
dc.creatorBosch, Guillermo Luis
dc.creatorMorrell, Nidia Irene
dc.date2005
dc.date2019-10-29T14:00:43Z
dc.identifierhttp://sedici.unlp.edu.ar/handle/10915/84296
dc.identifierissn:0035-8711
dc.descriptionWe present results of a search for giant H II regions in southern galaxies. Using high-resolution spectra, obtained with the Magellan Inamori Kyocera Echelle (MIKE) at the Las Campanas Magellan II telescope, we were able to resolve the emission-line profiles and determine the intrinsic velocity dispersion of the ionized gas. Out of four observed regions, selected from previous CCD narrow-band photometry, we detected three H II regions showing supersonic velocity dispersion, characteristic of giant H II regions, and their location in diagnostic diagrams suggests that a powerful starburst is the source of ionization energy.
dc.descriptionFacultad de Ciencias Astronómicas y Geofísicas
dc.formatapplication/pdf
dc.format1357-1361
dc.languageen
dc.rightshttp://creativecommons.org/licenses/by-nc-sa/4.0/
dc.rightsCreative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.subjectCiencias Astronómicas
dc.subjectGalaxies: Individual: Ngc 2997
dc.subjectGalaxies: Individual: Ngc 7552
dc.subjectGalaxies: Starburst
dc.subjectH II regions
dc.titleNew giant H II regions in the southern sky
dc.typeArticulo
dc.typeArticulo


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