... The Chemically Distinct Nucleus and Structure of the S0 Galaxy NGC 80 O. K. Sil'chenko1, S. E. Koposov1, V. V. Vlasyuk2, and O. I. Spiridonova 1 2 2 Sternberg Astronomical Institute, Universitetski i pr. ... The global stellar disk of NGC 80 has a two-tiered structure: its outer part has an exponential scale length of 11 kpc and normal surface density, while the inner disk, which is also exponential and axisymmetric, is more compact and brighter. ... 29, 1997 July 18, 2001 July 18, 2001 Aug. ...

... 000, 000­000 (0000) Printed 10 August 2005 A (MN L TEX style file v2.2) The effect of a finite mass reservoir on the collapse of spherical isothermal clouds and the evolution of protostellar accretion E. I. Vorobyov 1 2 1, 2 Department of Physics and Astronomy, University of Western Ontario, London, Ontario, N6A 3K7, Canada Institute ... November 1, 2004 Motivated by recent observations which detect an outer boundary for starless cores, and evidence for time-dependent mass ...