... The remote area was formed very early, at a time when the Universe was a fifth of its present age and the presence of the galaxy string defies existing models, which can not explain how a string this big could have formed so long ago. ... The simulations tell us that you cannot take the matter in the early Universe and line it up in strings this large," Dr Francis said. ... But in the early Universe, most galaxies had not yet formed, and most darkmatter clouds will not yet contain a galaxy. ...
... Printed in U.S.A. THE STELLAR DISK THICKNESS OF LOW SURFACE BRIGHTNESS GALAXIES D. Bizyaev 1,2,3 and S. Kajsin 4 Received 2003 October 23; accepted 2004 June 9 ABSTRACT We present surface photometry results for a sample of 11 edge-on galaxies observed with the 6 m telescope at the Special Astrophysical Observatory, Russia. ... We find from a comparison of photometric scales that the stellar disks of LSB galaxies are thinner than those of high surface brightness ( HSB) galaxies. ... UGC 11301 .. ...
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Ссылки http://www.mso.anu.edu.au/~kcf/surya/spiralstructure/Bizyaev04 -- 2057.9 Кб -- 09.07.2007 Похожие документы