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... 13, Moscow 119991, Russia §UK Astronomy Data Centre, Guest Investigator (Received 20 June 2007) The kinematics, structure, and stellar population properties in the centres of two brightest early-type galaxies of the Leo II group, NGC 3607 and NGC 3608, are studied by means of integral-field spectroscopy. ... Figure 1. ... Chemically decoupled cores in NGC 3607 and NGC 3608 3.1 NGC 3607 Figure 3 presents index maps for the central part of NGC 3607 constructed from the MPFS 2D spectral data. ...
... 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. ...
... A combination of two phase filters is described, which together produce a light beam that can be focused to produce a focal spot with an approximately flat top and with much reduced sidelobes (a top-hat function). ... Focal spot generator without sidelobes f2 (a) f1 Top-hat focal spot Lens 1 First phase mask 2161 f3 Incident collimated Beam Lens 2 Second phase mask Lens 3 (b) 0 Airy focal spot 0 2s df2/f1 Figure 1. (a) Schematic diagram of the system. ...
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Ссылки http://www.mrao.cam.ac.uk/projects/OAS/publications/fulltext/20041117-g-d-love-focalspot.pdf -- 121.8 Кб -- 20.02.2013 Похожие документы
... Brian reported that the new computer was installed at the observatory. ... Rex's club highlights were: 1) mention of the Washington Crossing observatory and its public outreach programs, availability to club members if a keyholder is present and introduction of Gene Ramsey an Brian Van Liew observatory co-chairs; 2) a brief mention that new keyholder training will take place this fall and to contact Brian for details, also acknowledgement that member Larry Kane completed the ...
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Ссылки http://www.princetonastronomy.org/newsletters/10_2004sidereal.pdf -- 550.4 Кб -- 05.10.2004 Похожие документы