... Four types of galaxy environments are considered: clusters, centers of groups, other places in groups, and the field. ... In order to check whether the mean ages of the stellar populations depend on environment density monotonically, as the hierarchical par­ adigm predicts, in this work I consider four types of environment separately: the cluster galaxies, the brightest (central ) galaxies of groups, the second­ranked group members, and the field galaxies. ... Group center SB(rs)0# 204 637 1996 Oct ...

Mon. Not. R. Astron. Soc. 349, 1397­1418 (2004) doi:10.1111/j.1365-2966.2004.07619.x The 2dF QSO Redshift Survey ­ XII. The spectroscopic catalogue and luminosity function S. M. Croom,1 R. J. Smith,2 B. J. Boyle,1 T. Shanks,3 L. Miller,4 P. J. Outram3 and N. S. Loaring4,5 1 2 3 4 5 Anglo-Australian Observatory, PO Box 296, Epping, NSW 1710, Australia Astrophysics Research Institute, Liverpool John Moores University, Twelve Quays House, Egerton Wharf, Birkenhead CH41 1LD Department of Physics, University of

п'? . PubliГї le 30/09/2012 par Fabrice Charnay . Date : 25/03/2012 . Lieu : Ecoche (42) . MatГїriel de prise de vue : C8 SGT XLT sur CG5 203/2000 - Barlow Televue x2.5 - Filtre IR-UV - CamГїra: DFK AF3103.0AS . Commentaires : DiamГЕtre apparent 23.4" - Magnitude -4.3 - SituГїe dans la constellation du Belier - Distance 0.72 U.A. - Phase 52% pleine

Back to Products ] . Borescope Teletube Specifications . ... Tube Diameter, . ... 1.7 . 170 . ... 200 . ... 270 . ... 1.8 meter long D=3.5 mm fiber light guide . ... Type transcript - A-3(30 0 AOV)-27(270 mm long)-40(4 mm diameter) = A32740 . The boroscope teletubes are equipped with a fixed -focus eyepiece about 60 mm long. Optional is focusing eyepiece 70 mm long. ...