Title of article
A SNAPSHOT SURVEY FOR GRAVITATIONAL LENSES AMONG z 4.0 QUASARS. II. CONSTRAINTS ON THE 4.0 < z < 5.4 QUASAR POPULATION
Author/Authors
Bahcall، Neta A. نويسنده , , Brinkmann، J. نويسنده , , Eisenstein، Daniel نويسنده , , Fukugita، Masataka نويسنده , , Schneider، Donald P. نويسنده , , Strauss، Michael A. نويسنده , , Richards، Gordon T. نويسنده , , Pindor، Bartosz نويسنده , , Fan، Xiaohui نويسنده , , Haiman، Zoltn نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
-48
From page
49
To page
0
Abstract
We construct an infinite family of hyperbolic 3manifolds whose fundamental groups are cyclically presented. We prove that these 3-manifolds are cyclic branched coverings of S3 over the 2-bridge knot b (17,4). Finally, we compute thehomology groups and discuss the spines of our manifolds which correspond to some group presentations
Keywords
luminosity function , early universegalaxies , mass functiongravitational lensingquasars
Journal title
Astronomical Journal
Serial Year
2006
Journal title
Astronomical Journal
Record number
116586
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