Ravi K. Sheth


Ravi K. Sheth
email shethrk -at- physics.upenn.edu
phone (215) 898-5942
fax (215) 898-2010
lab phone - - -
room 4N3 DRL
links http://www.physics.upenn.edu/~shethrk
degree Ph.D. in Astrophysics, Institute of Astronomy, Cambridge University (1994)
B.Sc. in Physics (High Honors), Haverford College (1990)
Kodaikanal International School, Four Higher Level I.B. certificates (1986)
keywords Astrophysics
overview

My research interests concentrate on galaxy formation and the large scale structure of the Universe. My models provide an accurate and concise description of the abundance and spatial distribution of galaxies and galaxy clusters in expanding world models.  

In particular, I develop models of hierarchical clustering which use a variety of analytical (combinatorics, stochastic processes, point processes) and numerical tools. The model predictions are compared to simulations and observations. I have recently become interested in models where fragmentation also matters, as well as in various statistical estimation problems motivated by astrophysics. 

honors
  • Marshall Scholar
positions
  • Associate Professor, University of Pennsylvania (2007-)
  • Assistant Professor, University of Pennsylvania (2005-)
  • Assistant Professor, University of Pittsburgh (2002-04)
  • Research Associate, Fermi National Accelerator Laboratory (1999-2001)
  • Post-doctoral Researcher, Max-Planck Institut fuer Astrophysik (1996-99)
  • Post-doctoral Teaching Assistant, University of California, Berkeley (1994-96)
select pubs
  • On estimating redshift and luminosity distributions in photometric redshift surveys, Ravi K. Sheth, MNRAS, 378, 709 (2007)
  • `Eppur Si Muove': On the motion of the acoustic peak in the correlation function, R. E. Smith, R. Scoccimarro & Ravi K. Sheth, Phys. Rev. D, submitted (2007)
  • Environment and the cosmic evolution of star formation, Ravi K. Sheth, R. Jimenez, B. Panter & A. F. Heavens, ApJL, 650, L25 (2006)
  • The halo model description of marked statistics, Ravi K. Sheth, MNRAS, 364, 796 (2005)
  • On the environmental dependence of halo formation, Ravi K. Sheth & Giuseppe Tormen, MNRAS, 350, 1385 (2004)
  • Substructure and the halo model of large-scale structure, Ravi K. Sheth & Bhuvnesh Jain, MNRAS, 345, 529 (2003)
  • Halo models of large scale structure, Asantha Cooray & Ravi K. Sheth, Physics Reports, 372, 1 (2002)
  • An excursion set model of hierarchical clustering: ellipsoidal collapse and the moving barrier, Ravi K. Sheth & G. Tormen, MNRAS, 329, 61 (2002)
  • Large scale bias and the peak background split
    Ravi K. Sheth, G. Tormen, MNRAS, 308, 119 (1999)
  • Galton-Watson branching processes and the growth of gravitational clustering, Ravi K. Sheth, MNRAS, 281, 1277 (1996)