Neutral Hydrogen Observations of NGC3628

Details Neutral Hydrogen Observations of NGC3628 Neutral Hydrogen Observations of NGC3628

Aug 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.263.1075w&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Vol. 263, NO.4/AUG15, P.1075, 1993

Astronomy and Astrophysics

Astronomy

20

Scientific paper

Neutral hydrogen emission from NGC 3628, a member of the Leo Triplet, has been observed with the VLA in C and D arrays with an angular resolution of 15 arcsec and a velocity resolution of ~20 km s^-1^. Our observations reveal a `limb' of material stretching away on the northern side of the disc, to the west of the nucleus. We interpret this as being related to the stripped atomic hydrogen seen in earlier studies and predicted by numerical simulations. A rotation curve is derived for the galaxy, and from this we deduce the existence of a separate disc with high angular velocity in the nucleus of the galaxy. The images also show a `ring' at the eastern edge of the galaxy; we believe this to be an arm induced as the tidal response to the passage of NGc 3627 around the disc of NGC 3628.

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