SIMBAD references

2000AJ....120..621P - Astron. J., 120, 621-629 (2000/August-0)

Kinematics and morphology of ionized gas in Hickson compact group 18.

PLANA H., AMRAM P., MENDES DE OLIVEIRA C. and BALKOWSKI C.

Abstract (from CDS):

We present new observations of Hα emission in the Hickson compact group 18 (HCG 18), obtained with a scanning Fabry-Perot interferometer. The velocity field does not show motions of individual group members but instead a complex common velocity field for the whole group. The gas distribution is very asymmetric, with clumps of maximum intensity coinciding with the optically brightest knots. Comparing Hα and H I data, we conclude that HCG 18 is not a compact group but instead a large irregular galaxy with several star-forming clumps.

Abstract Copyright: ∼

Journal keyword(s): galaxies: individual (UGC 2140) - Galaxies: Irregular - Galaxies: ISM - Galaxies: Kinematics and Dynamics - Instrumentation: Interferometers

Simbad objects: 12

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