Matches in SemOpenAlex for { <https://semopenalex.org/work/W4300523897> ?p ?o ?g. }
- W4300523897 endingPage "A71" @default.
- W4300523897 startingPage "A71" @default.
- W4300523897 abstract "We investigate the dynamics of starbursting dwarf galaxies, using both new and archival HI observations. We consider 18 nearby galaxies that have been resolved into single stars by HST observations, providing their star formation history and total stellar mass. We find that 9 objects have a regularly-rotating HI disk, 7 have a kinematically disturbed HI disk, and 2 show unsettled HI distributions. Two galaxies (NGC 5253 and UGC 6456) show a velocity gradient along the minor axis of the HI disk, that we interpret as strong radial motions. For galaxies with a regularly rotating disk we derive rotation curves, while for galaxies with a kinematically disturbed disk we estimate the rotation velocities in their outer parts. We derive baryonic fractions within about 3 optical scale lengths and find that, on average, baryons constitute at least 30$%$ of the total mass. Despite the star formation having injected $sim$10$^{56}$ ergs in the ISM in the last $sim$500 Myr, these starbursting dwarfs have both baryonic and gas fractions similar to those of typical dwarf irregulars, suggesting that they did not eject a large amount of gas out of their potential wells." @default.
- W4300523897 created "2022-10-03" @default.
- W4300523897 creator A5044264584 @default.
- W4300523897 creator A5044660520 @default.
- W4300523897 creator A5086966855 @default.
- W4300523897 date "2014-06-01" @default.
- W4300523897 modified "2023-10-13" @default.
- W4300523897 title "Dynamics of starbursting dwarf galaxies" @default.
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