HI Imaging of Optically Compact Dwarf Galaxies. II. Nearby Companions

Details HI Imaging of Optically Compact Dwarf Galaxies. II. Nearby Companions HI Imaging of Optically Compact Dwarf Galaxies. II. Nearby Companions

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21545718f&link_type=abstract

American Astronomical Society, AAS Meeting #215, #457.18; Bulletin of the American Astronomical Society, Vol. 42, p.482

Astronomy and Astrophysics

Astronomy

Scientific paper

A VLA HI spectral line study of five nearby, optically compact dwarf galaxies has revealed that four of these systems have companion systems in close proximity. Here we explore the morphology and kinematics of these companion systems. Two are massive spirals (NGC 5375, companion of KISSR 396; and NGC 5657, companion of KISSR 561) and two are comparatively under-studied systems (SDSS J131552.81+292515.1, companion of KISSR 245; and SDSS J144754.58+293221.1, companion of KISSR 572). We do not detect extended tidal material at this sensitivity level in any of these systems, suggesting that these interactions have not been close or recent enough to remove large amounts of HI from the systems involved.

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