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The 2dF Galaxy Redshift Survey: the bJ -band galaxy luminosity function and survey selection function
Peder Norberg Shaun Cole Carlton M. Baugh Carlos S. Frenk Ivan Baldry Joss Bland-Hawthorn Terry Bridges Russell Cannon Matthew Colless Chris Collins Warrick Couch Nicholas J. G. Cross Gavin Dalton Roberto De Propris Simon P. Driver George Efstathiou Richard S. Ellis Karl Glazebrook Carole Jackson Ofer Lahav Ian Lewis Stuart Lumsden Steve Maddox Darren Madgwick John A. Peacock Bruce A. Peterson Will Sutherland Keith Taylor 《Monthly notices of the Royal Astronomical Society》2002,336(3):907-931
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Halton Arp 《Journal of Astrophysics and Astronomy》1997,18(4):393-406
Building on evidence starting from 1966, X-ray observations have once again confirmed the association of quasars with low
redshift galaxies. Enough examples of quasar-like objects ejected in opposite directions from nearby, active galaxies have
accumulated so that an empirical evolutionary sequence can be outlined.
The quasars start out with low luminosity and high (z > 2) redshift. As they travel away from their galaxy of origin they
grow in size and decay in redshift. The redshifts drop in steps and near the quantized values of z = 0.6, 0.3, and 0.06 the
quasars become particularly active, ejecting or breaking up into many objects which evolve finally into groups and clusters
of galaxies. The observations massively violate the assumptions of the Big Bang and require continuous, episodic creation
in a non expanding universe of indefinitely large size and age. 相似文献
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We discuss the origin of the optical jets and the apparently associated cloud of QSOs in NGC 1097. There is a simple explanation
for the jets in terms of ejection trails of supermassive black holes. In this interpretation, the trails provide the first
direct evidence for the non-conservation of linear momentum in a two black hole collision. The cluster of quasars at the end
of the jets is then naturally associated with objects which have been ejected by the merging pair of black holes. It is possible
to interpret the spectral lines of these QSOs such that half of them are blueshifted relative to NGC 1097 while the other
half is redshifted. We infer that the objects in the QSO cluster are not real QSOs but probably collapsed objects of lower
mass. We argue that these objects are likely to represent the hypothetical population III black holes of Carretal. 相似文献