... Printed in U.S.A. COMPLEX FORMATION HISTORY OF THE LENTICULAR GALAXIES WITH STELLAR COUNTERROTATION: NGC 4138 AND NGC 45501 V. L. Afanasiev Special Astrophysical Observatory, Nizhnij Arkhyz, 369167 Russia; vafan@sao.ru and O. K. Sil`chenko 2 Sternberg ... To further explore this idea, we undertook a special study of stellar population properties in the centers of two early-type disk galaxies with counterrotating global stellar disks: NGC 4138 and NGC 4550. ... NGC 4138 3.1. ... NGC 4550 4.1....
VISTA Data Flow System : Overview Jim Emersona , Mike Irwinb, Jim Lewisb, Simo n Hodgkinb, Dafydd Evansb, Peter Bunclarkb, Richard McMahonb, Nigel Hamblyc ... Astronomy, School of Physics, Universit y of Edinburgh, Royal Observatory, Blackford Hill, Edinburgh, EH9 3HJ, UK d Nat ional e- Science Centre, 15 South College Street, Edinburgh EH8 9AA, UK e UK Astronomy Techno logy Centre, Royal Observatory, Blackford Hill, Edinburgh ... The system name adopted was the VISTA Data Flow System (VDFS). ...
... 000, 112 (2009) Printed 11 February 2010 A (MN L TEX style file v2.2) Analytical approximations of K -corrections in optical and near-infrared bands I1gor V. Chilingarian1 2 ,2,3 , Anne-Laure Melchior 1,4 and Ivan Yu. ... Received 2010 February 01; in original form 2009 August 14 ABSTRACT To compare photometric properties of galaxies at different redshifts, the fluxes need to be corrected for the changes of effective rest-frame wavelengths of filter bandpasses, called K -corrections. ... Table 1. ...
Journal of Atmospheric and Solar-Terrestrial Physics Manuscript Draft Manuscript Number: ATP1021 Title: comment on the paper by Dalin , Pertsev and Romejko Significance of lunar impact on noctilucent clouds ( revised version) Article Type: Research Paper Section/Category: Keywords: Noctilucent clouds moon influence mesosphere Manuscript Region of Origin: Abstract: a critical review of the paper by Dalin , ... Reference: Dalin, P.A., N.N. Pertsev, V.A. Romejko. ...
. Authors . Problem . Method . Advises . Contact Analysis of an accuracy of CCD asteroid observations carried out by professional and amateur astronomers . An accuracy estimation of CCD asteroid observations contained in the Minor Planet Center Database and carried out in the years 1999 - 2006 is realized. About 20 millions individual positions of the Numbered and Unnumbered Minor Planets were tested by means of calculations of (O-C) residuals to derive "mean error of a single observation" for more than 400