Péter Mészáros

Péter István Mészáros, or Peter Mészáros, is a Hungarian-American theoretical astrophysicist, 
best known for the Mészáros effect
Mészáros, P., "The behaviour of point masses in an expanding cosmological substratum", Astronomy and Astrophysics, vol. 37, no. 2, Dec. 1974, p. 225-228 
in cosmology and for his work on gamma-ray bursts
Mészáros, P. and Rees, M.J., "Optical and Long-Wavelength Afterglow from Gamma-Ray Bursts", The Astrophysical Journal, Volume 476, Issue 1, Feb. 1997, pp. 232-237,
Rees, M.J. and Mészáros, P., "Unsteady Outflow Models for Cosmological Gamma-Ray Bursts", Astrophysical Journal Letters v.430, August 1994, pp.L93-L96.
==life==
Péter Mészáros was born in Budapest, Hungary, and grew up in Liége, Belgium and Buenos Aires, 
Argentina, where he did his undergraduate studies. He received his PhD in 1972 from the 
University of California, Berkeley, and after postdoctoral fellowships at Princeton University
and Cambridge University he became a staff scientist at the Max Planck Institute for Astrophysics. 
He joined the Pennsylvania State University in 1983, where for ten years he 
was Head of the department of Astronomy and Astrophysics and Professor of Physics, being named
Eberly Chair Professorhttps://news.psu.edu/story/207785/2005/10/14/meszaros-named-holder-eberly-family-chair-astronomy-astrophysics Eberly Chair Professor.
==Career==
Mészáros is widely known in the astrophysical community for his papers on the 
relativistic fireball shock model of gamma ray bursts and their afterglows
,,
laying down the framework for the interplay between the jet dynamics and the external as 
well as internal shocks which determine the observational aspects of these sources.
He is also known in the cosmological community for the Mészáros effect,
or Mészáros equation, which quantifies the influence of dark matter in the evolution of 
the initial perturbations leading to large scale structures in cosmology.
He was active in the study of the interstellar medium as well as the astrophysics of black holes, 
and contributed broadly to the study of magnetized neutron stars, e.g.
, pp.1-531.
He served as the science-theory lead of the NASA Neil Gehrels Swift Observatory space mission.
His current interests include calculations of theoretical models of cosmic high energy cosmic ray 
and neutrino sources, e.g. 
Rachen, J.P. and Mészáros, P., "Photohadronic neutrinos from transients in astrophysical sources", Physical Review D, Volume 58, Issue 12, 15 December 1998, id. 123005, 
Murase, K., Kimura, S.S. and Mészáros, P., "Hidden Cores of Active Galactic Nuclei as the Origin of Medium-Energy Neutrinos: Critical Tests with the MeV Gamma-Ray Connection", Physical Review Letters, Volume 125, Issue 1, June 2020, id. 011101,
as well as exploring various aspects of multimessenger astrophysics.
== Positions ==
Mészáros is a Fellow of the American Academy of Arts and Sciences (2010) https://news.psu.edu/story/166804/2010/06/08/academics/peter-meszaros-elected-2010-american-academy-fellow,
Member of the Hungarian Academy of Sciences (2010)https://news.psu.edu/story/166544/2010/06/21/academics/peter-meszaros-elected-member-hungarian-academy-sciences,
Fellow of the American Physical Society (1996) and
Fellow of the American Astronomical Society (2019).
He is the Eberly Chair Professor Emeritus of Astronomy and Astrophysics and of Physics at
Penn State, and is currently the Director of its 
Center for Multimessenger Astrophysics http://sites.psu.edu/cmma
Penn State Center for Multimessenger Astrophysics .
==Awards==
2013: ;
2009: ;
2007: ;
2000: ;
1999: ;
1976: .
== References ==
==External links==
* Péter Mészáros at Penn State - personal.psu.edu
* ‪Peter Mészáros‬ - ‪Google Scholar‬
* Peter Mészáros | Institute for Advanced Study
* Peter Mészáros - Publications - The Academic Family Tree
* Homepage: Péter Mészáros at Pennsylvania State University
Category:1943 births
Category:Astrophysicists
Category:Astronomers
Category:Physicists
Category:Living people
Category:University of California, Berkeley alumni
Category:Pennsylvania State University faculty
Category:Fellows of the American Academy of Arts and Sciences
Category:Members of the Hungarian Academy of Sciences
Category:Fellows of the American Physical Society
Category:Fellows of the American Astronomical Society
Category:Institute for Advanced Study visiting scholars
Category:people from Budapest
Category:people from Buenos Aires