1997/04/03 by Stephanie Cote, Stéphanie Côté, Cote, Stephanie +6
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics (astro-ph) #FOS: Physical sciences #Gamma-ray bursts and supernovae #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/9704031
Postscript file (8 pages including 4 figures). To appear in "Dark and Visible Matter in Galaxies and Cosmological Implications" (Sesto Pusteria, Italy, 2-5 July 1996), ASP Conference Series, eds M.Persic and P.Salucci
arxiv created 1997/04/03 · openalex publication_date 1997/04/03 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Five nearby dwarf irregular galaxies, amongst the recently surveyed dwarf members of the Sculptor and Centaurus A groups (at 2.5 Mpc and 3.5 Mpc), have been imaged in neutral hydrogen (HI) with the Australia Telescope and the Very Large Array. These objects have absolute magnitudes MB in the range -14.9 to -12.7, yet they are clearly rotationally supported, with maximum rotation velocities ranging from 43 km/s to 67 km/s. Multi-component mass-models have been fitted to the rotation curves. We investigate the properties of their dark matter halos, and the scaling laws of the dark matter halos parameters.