Abstract
The discovery is reported of an HI cloud at the same redshift as II Zwicky 33 with an HI mass of 1.2 × 109 M⨀. Only very weak optical emission is seen at its position in the light of Hα and in broad band B pictures whereas II Zw 33 itself shows signs of violent star formation. It is suggestive that the two clouds are tidally interacting and that this has triggered the present burst of star formation. The companion galaxy is practically a dark galaxy and might be of primordial composition. The total mass of the companion is of the same order as the mass in neutral gas and there is no need to invoke any dark matter.
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© 1990 Springer-Verlag Berlin Heidelberg
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Brinks, E. (1990). II Zwicky 33: Star Formation Induced by a Recent Interaction. In: Wielen, R. (eds) Dynamics and Interactions of Galaxies. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-75273-5_27
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DOI: https://doi.org/10.1007/978-3-642-75273-5_27
Publisher Name: Springer, Berlin, Heidelberg
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