Neutral hydrogen observations of the CVn I group. II - The barred Im galaxy NGC 4214

Astronomy and Astrophysics – Astronomy

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Astronomical Maps, Barred Galaxies, Galactic Structure, Hydrogen Clouds, Neutral Gases, Data Reduction, Gas Flow, High Resolution, Radial Velocity, Radii, Telescopes, Velocity Distribution

Scientific paper

High-resolution H I observations of NGC 4214 made with the Cambridge Half-Mile telescope show hydrogen out to 1.4 times the Holmberg radius of the galaxy. Both continuum emission and the brightest H I emission are extended along the optical bar, and the central contours of the velocity-field are rotated from the dynamical minor axis towards the bar. The H I in NGC 4214 is also extended towards its nearby companion NGC 4190, suggesting that the two galaxies have interacted tidally.

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