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Article overview
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Evidence for Old Stars in the Red Low Surface Brightness Galaxies UGC 6614 and F568-6 | A. C. Quillen
; T. E. Pickering
; | Date: |
15 May 1997 | Subject: | astro-ph | Abstract: | We present near-Infrared images of low surface brightness galaxies: H band images of UGC 6614 and F568-6 (Malin 2). The H band images show spiral structure so we are confident that we are seeing the galaxy disks as well as the central bulges. The optical-IR colors of these galaxies, $R-H = 2.2pm 0.2$, $B-H = 3.5-4.2$, are extremely red and are similar to those of many S0 and elliptical galaxies. This represents strong evidence for a component of old stars. Recent studies find that low surface brightness galaxies span a wide range of morphologies and colors. In this context UGC 6614 and F568-6 could be examples of low surface brightness galaxies which have undergone a past epoch of more vigorous star formation. | Source: | arXiv, astro-ph/9705115 | Services: | Forum | Review | PDF | Favorites |
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