GALAXY MORPHOLOGIES FROM HST WFPC2 IMAGING OF THE HAWAII SURVEY

被引：213

作者：

COWIE, LL

HU, EM

SONGAILA, A

机构：

[1] Institute for Astronomy, University of Hawaii, Honolulu, HI 96822

来源：

ASTRONOMICAL JOURNAL | 1995年 / 110卷 / 04期

关键词：

D O I：

10.1086/117631

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present very deep HST WFPC2 images in the F814W filter of two Hawaii Survey fields, SSA13 and SSA22. Using these data with previous ground-based imaging and spectroscopy, we compare the colors, star-forming properties, and morphologies of the faintest galaxies with a reference sample of bright nearby galaxies and analyze the changes in field galaxy morphology with magnitude. Our principal result is the identification of a new morphological class of ''chain'' galaxies at the faintest magnitudes. Based on limited spectroscopy, we tentatively conclude that these are linearly organized giant star-forming regions at z = 0.5 - 3 and, if this is correct, that these are large galaxies in the process of formation (C) 1995 American Astronomical Society.

引用

页码：1576 / &

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