György Paál
{{Short description|Hungarian astronomer and cosmologist}}
{{Eastern name order|Paál György}}
György Paál (Budapest, 1934 – Budapest, 1992){{Cite web|url=http://members.iif.hu/visontay/ponticulus/rovatok/limes/bartha-magyar-csillagaszok.html|title=A keresett weboldalt 2020. December 15-én műszaki okokból leállítottuk|access-date=2012-01-30|archive-date=2013-07-29|archive-url=https://web.archive.org/web/20130729234352/http://members.iif.hu/visontay/ponticulus/rovatok/limes/bartha-magyar-csillagaszok.html|url-status=dead}} was a Hungarian astronomer and cosmologist.
Work
In the late 1950s Paál studied the quasar and galaxy cluster distributions. In 1970 from redshift quantization he came up with the idea that the Universe might have nontrivial topological structure.
{{cite journal|last=Paál |first=G.|date=1970|title=Red shifts and Quasars|journal=Science Journal|volume=6 |number=6|pages=101}}
{{cite journal
|last=Paál |first=G.
|date=1971
|title=The global structure of the universe and the distribution of quasi-stellar objects
|journal=Acta Physica Academiae Scientiarum Hungaricae
|volume=30 |pages=51–54
|bibcode=1971AcPhH..30...51P
|doi=10.1007/bf03157173
|s2cid=118710050
}}
These are the oldest papers that associate real observations with the possibility that our universe could have nontrivial topology.{{cite journal
|last1= Luminet
|first1= Jean-Pierre
|author-link= Jean-Pierre Luminet
|first2= Marc
|last2= Lachièze-Rey
|title= Cosmic Topology
|journal= Physics Reports
|volume= 254
|issue= 3
|pages= 135–214
|date= 1995
|arxiv= gr-qc/9605010
|doi= 10.1016/0370-1573(94)00085-h
|bibcode= 1995PhR...254..135L
|s2cid= 119500217
}}
Membership
Cosmological Committee of IAU
Awards
László Detre award.
See also
References
{{Reflist}}
{{Authority control}}
{{DEFAULTSORT:Paal, Gyorgy}}