... 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. ...

New Space Exploration Vision On Jan. 14, the President announced a new vision for NASA s Implement a sustained and affordable human and robotic program to explore the solar system and beyond s Extend human presence across the solar system, starting with a human return to the Moon by the year 2020, in preparation for human exploration of ... Beginning with Project Apollo in the early 1960s, WSTF has supported every United States human exploration space flight program. ...