There are clearly some very striking single objects

There are clearly some very striking single objects - There...

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There are clearly some very striking single objects, such as the three quasars seen along the line of sight to NGC 1073 (Arp and Sulentic 1979 ApJ 229, 496) and another three near NGC 3842 (Arp and Gavazzi 1094 A&A 139, 240). Recently we can add the discovery that the low-redshift companion to the BL Lac object AO 0235+164 is itself a BAL QSO (Burbidge et al. 1996 AJ 112, 2533) and the X-ray discovery of QSOs at z =0.40,0.65 on either side of NGC 4258 (Burbidge 1995 A&A 298, l1; neither of these last two citations is to the obvious Burbidge). However, the solution of this issue must rest on quantifiable statistics for which it is clear that large areas of sky with and without bright galaxies have been searched. Arp and Hazard have examined a few "blank fields" and report interesting structure in the quasar distribution even there. With recent evidence on large-scale structure in galaxies, perhaps we are falling victim to a facile assumption that the quasar distribution is much more uniform at moderate redshifts
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This note was uploaded on 11/10/2011 for the course AST AST1002 taught by Professor Emilyhoward during the Fall '10 term at Broward College.

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There are clearly some very striking single objects - There...

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