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HI in the Barred Spiral Galaxies NGC 1365 and NGC 1097.

Published online by Cambridge University Press:  04 August 2017

J. M. van der Hulst ,
M. P. Ondrechen ,
J. H. van Gorkom  and
E. Hummel
J. M. van der Hulst
Affiliation:
Netherlands Foundation for Radio Astronomy, The Netherlands
M. P. Ondrechen
Affiliation:
University of Minnesota, Minneapolis, MN, USA.
J. H. van Gorkom
Affiliation:
National Radio Astronomy Observatory, VLA, Socorro, NM, USA.
E. Hummel
Affiliation:
University of New Mexico, Albuquerque, NM, USA.

Extract

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In this paper we present preliminary results from 21-cm line observations with the Very Large Array (VLA) of the southern barred spiral galaxies NGC 1365 and NGC 1097. Despite a wealth of theoretical models describing the gas flow in a non-axisymmetric bar potential (see Prendergast this volume), few observations of the HI distribution and motions in barred spiral galaxies exist. A notable exception is NGC 5383 (Sancisi et al. 1979). The observations we performed with the VLA are described below. The velocity resolution is 25 km sec−1. The angular resolution is 28″x20″, p.a. 20° for NGC 1365 and 30″x25″, p.a. 20° for NGC 1097. Velocities are heliocentric.

Type
IV. Barred Galaxies
Information
Symposium - International Astronomical Union , Volume 100: Internal Kinematics and Dynamics of Galaxies , 1983 , pp. 233 - 234
Copyright
Copyright © Reidel 1983 

References

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Roberts, W.W., Huntley, J.M. and van Albada, D.G.: 1979, Ap.J. 223, 67.Google Scholar
Sancisi, R., Allen, R.J. and Sullivan, W.T.: 1979, A. & A. 78, 217.Google Scholar