... 337, 275­292 (2002) The correlation of line strength with luminosity and redshift from composite quasi-stellar object spectra S. M. Croom,1 K. Rhook,1 E. A. Corbett,1 B. J. Boyle,1 H. Netzer,2 N. S. Loaring,3 L ... We measure highly significant Baldwin effects for most broad emission lines (C IV 1549, C III] 1909, Mg II 2798, H ,H ) and show that they are predominantly caused by correlations with luminosity, not redshift. ... The correlations of log W with log(1 + z ) for each line. ...

... 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 the Amateur Astronomers Association of New York February 2008 Volume 56 Number 2, ISSN 0146-7662 EYEPIECE Will Dark Energy Become Less Mysterious? ... The National Academy of Sciences has endorsed further evaluation of three concepts for Joint Dark Energy Missions for a possible new "Hubble-class" space telescope, Riess observed. ... The Moon will be in Leo as it was last March, but will be picturesquely placed between the bright star Regulus and the ringed planet Saturn. ...

. 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

ABSTRACTS 10-th International Gamow Summer School "Astronomy and beyond: Astrophysics, Cosmology and Gravitation, Cosmomicrophysics, Radio-astronomy and Astrobiology" (Ukraine, Odessa, Chernomorka, 23-28 August, 2010) MEMORIAL SESSION SERGEY ALEKSANDROVICH SNEGOV (1910-1994) ­ OUSTANDING PHYSICIST, COSMOLOGIST, ASTRONOMER AND WRITER ­ VISIONARY TO A 100-ANNIVERSARY FROM BIRTHDAY Pahomov A.G. PFUM, Moscow It is possible to judge a condition of an astronomical science on literary works of time. ...

... 9) Oknyanskij V.L. 1994, "Optical-radio time delays in Q0957+561", Odessa Astronomical Publ., ... 11) Oknyanskij V.L. 1994, "Connection between X-ray and optical variability in NGC4151", in Proceedings of Int. Conf. ... 1994. 12) Oknyanskij V.L. 1994, "Connection between X-ray and optical variability in NGC4151", Astrophys. and Space Science, 222, p.157. ... 14) Oknyanskij V.L., van Groningen E., 1997, "Optical spectral variability of NGC4151 in 1990", Astronomical and Astrophys. ...

... Undaunted, and hopeful that our club's observatory at Washington Crossing State Park, Titusville, NJ enjoyed better conditions, I set off. A few minutes later I arrived at the park and met my fellow AAAP club members Brian Van Liew and Bill Murray already there and set up awaiting the sunrise. ... Mark Jaworsky Simpson Observatory (609) 737-2575 From the Editor As you see in the Masthead, a new club officer has been installed (Secretary, Mark Jaworsky) and we have started a new year of AAAP. ...

В сокращенном варианте опубликовано в Российской газете 2 марта 2001 г. под заголовком "Отцвели яблони на Марсе" . Минувший год ознаменовался двумя важными открытиями в области марсианской геологии: американские ученые Майкл Мэлин и Кеннет Эджетт обнаружили на Марсе овраги и горные породы осадочного происхождения. На Земле и те, и другие обязаны своим появлением жидкой воде. ... Против того, что по Марсу некогда текла вода, свидетельствует, например, химический состав поверхности планеты. ...

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