1998/11/01 by Rob Swaters, Robert A. Swaters, Swaters, Rob
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics (astro-ph) #FOS: Physical sciences #Scientific Research and Discoveries #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/9811010
2 pages, to appear in the proceedings of "Galaxy Dynamics", Rutgers University, Aug. 8-12 (see also http://www.astro.rug.nl/~swaters/rutgers.html)
arxiv created 1998/11/01 · openalex publication_date 1998/11/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Previous studies of dwarf irregular galaxies have mostly found that these systems have slowly rising rotation curves and that they are dominated by dark matter, even well within the optical disk. However, based on new observations and a different technique to derive rotation curves, we find that the rotation curves may be steeper and that dark matter may be important in the outer parts only.