Open AccessStructure and kinematics of edge‐on galaxy discs – II. Observations of the neutral hydrogen
Author(s) -
Kregel M.,
Van Der Kruit P. C.,
De Blok W. J. G.
Publication year - 2004
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1111/j.1365-2966.2004.07990.x
Subject(s) - physics , astrophysics , spiral galaxy , radio telescope , radius , galaxy , telescope , astronomy , galaxy rotation curve , kinematics , spiral (railway) , bulge , envelope (radar) , galaxy formation and evolution , mathematical analysis , computer security , mathematics , classical mechanics , computer science , telecommunications , radar
We present Australia Telescope Compact Array and Westerbork Synthesis Radio Telescope H i observations of 15 edge‐on spiral galaxies of intermediate to late morphological type. The global properties and the distribution and kinematics of the H i gas are analysed and discussed. We determine the rotation curves using the envelope‐tracing method. For 10 spiral galaxies with a stellar disc truncation we find an average ratio of the H i radius to the truncation radius of the stellar disc of 1.1 ± 0.2 (1σ).