NGC 1427A - an LMC type galaxy in the Fornax Cluster

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dc.creatorHilker, M.
dc.creatorBomans, D. J.
dc.creatorInfante, L.
dc.creatorKissler-Patig, M.
dc.date1997-07-14
dc.date.accessioned2026-07-07T02:23:49Z
dc.date.available2026-07-07T02:23:49Z
dc.descriptionWe have discovered that the Fornax irregular galaxy NGC 1427A is in very many respects a twin of the Large Magellanic Cloud. Based on B, V, I, and H alpha images, we find the following. The light of the galaxy is dominated by high surface brightness regions in the south-west that are superimposed by a half-ring of OB associations and H II regions indicating recent star formation. The colors of the main stellar body are (V-I) = 0.8 mag and (B-V) = 0.4 mag, comparable to the LMC colors. A low surface brightness cloud north of the main body as well as a LSB tail in the west have colors (V-I = 0.2 mag) that are more typical for blue compact dwarf galaxies. We identified a system of cluster candidates with mean ages < 2 Gyr (assuming a LMC metallicity) comprising the richest cluster system in an irregular galaxy observed up to now outside the Local Group. In X-ray wavelengths NGC 1427A appears with a relatively soft and complex spectrum.
dc.description7 pages, LaTex, incl. 4 PostScript figures, 3 additional gif figures. Accepted by A&A (Main Journal). Postscript version also available at http://aibn91.astro.uni-bonn.de/~mhilker/publication.html
dc.identifierhttps://arxiv.org/abs/astro-ph/9707151
dc.identifierhttp://arxiv.org/abs/astro-ph/9707151
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/11392
dc.subjectAstrophysics
dc.titleNGC 1427A - an LMC type galaxy in the Fornax Cluster
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