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II Zwicky 23 and Family

Elizabeth H. Wehner·John S. Gallagher·Gwen C. Rudie·Philip J. Cigan
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Abstract

II Zwicky 23 (UGC 3179) is a luminous, nearby compact narrow emission line starburst galaxy with blue optical colors and strong emission lines. We present a photometric and morphological study of II Zw 23 and its interacting companions using data obtained with the WIYN 3.5-m telescope in Kitt Peak, Arizona. II Zwicky 23 has a highly disturbed outer structure with long trails of debris that may be feeding tidal dwarfs. Its central regions appear disky, a structure that is consistent with the overall rotation pattern observed in the H-alpha velocity field measured from Densepak observations obtained with WIYN. We discuss the structure of II Zwicky 23 and its set of companions and possible scenarios of debris formation in this system.

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Elizabeth H. Wehner, John S. Gallagher, Gwen C. Rudie, Philip J. Cigan. 2006-03-12. II Zwicky 23 and Family. https://doi.org/10.1007/978-3-540-71173-5_48

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