H
Håvard B. Sandvik
Researcher at University of Pennsylvania
Publications - 4
Citations - 4448
Håvard B. Sandvik is an academic researcher from University of Pennsylvania. The author has contributed to research in topics: Dark matter & Observational cosmology. The author has an hindex of 4, co-authored 4 publications receiving 4237 citations.
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Cosmological parameters from SDSS and WMAP
Max Tegmark,Max Tegmark,Michael A. Strauss,Michael R. Blanton,Kevork N. Abazajian,Scott Dodelson,Scott Dodelson,Håvard B. Sandvik,Xiaomin Wang,David H. Weinberg,Idit Zehavi,Neta A. Bahcall,Fiona Hoyle,David J. Schlegel,Roman Scoccimarro,Michael S. Vogeley,Andreas A. Berlind,Tamás Budavári,Andrew J. Connolly,Daniel J. Eisenstein,Douglas P. Finkbeiner,Joshua A. Frieman,Joshua A. Frieman,James E. Gunn,Lam Hui,Bhuvnesh Jain,David Johnston,David Johnston,Stephen M. Kent,Huan Lin,Reiko Nakajima,Robert C. Nichol,Jeremiah P. Ostriker,Adrian Pope,Ryan Scranton,Uroš Seljak,Ravi K. Sheth,Albert Stebbins,Alexander S. Szalay,István Szapudi,Yongzhong Xu,James Annis,Jon Brinkmann,Scott Burles,Francisco J. Castander,István Csabai,Jon Loveday,Mamoru Doi,Masataka Fukugita,Bruce Gillespie,Greg Hennessy,David W. Hogg,Željko Ivezić,Gillian R. Knapp,D. Q. Lamb,Brian C. Lee,Robert H. Lupton,Timothy A. McKay,Peter Z. Kunszt,Jeffrey A. Munn,Liam O'Connell,John Peoples,Jeffrey R. Pier,Michael Richmond,Constance M. Rockosi,Donald P. Schneider,Christopher Stoughton,Douglas L. Tucker,Daniel E. Vanden Berk,Brian Yanny,Donald G. York +70 more
TL;DR: In this paper, the authors measured cosmological parameters using the three-dimensional power spectrum P(k) from over 200,000 galaxies in the Sloan Digital Sky Survey (SDSS) in combination with WMAP and other data.
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The end of unified dark matter
TL;DR: In this paper, it was shown that unified dark matter models produce oscillations or exponential blowup of the dark matter power spectrum inconsistent with observation, and that 99.999% of the previously allowed parameter space is excluded, leaving essentially only the standard $\ensuremath{\Lambda}mathrm{CDM}$ limit allowed.
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Non-parametric mass reconstruction of A1689 from strong lensing data with SLAP
TL;DR: In this paper, the mass distribution in the central area of the cluster A1689 by fitting over 100 multiply lensed images with the nonparametric Strong Lensing Analysis Package (SLAP, Diego et al. 2004).
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CMBFIT: Rapid WMAP likelihood calculations with normal parameters
TL;DR: In this paper, the authors present a method for ultra-fast confrontation of the WMAP cosmic microwave background observations with theoretical models, implemented as a publicly available software package called CMBfit, useful for anyone wishing to measure cosmological parameters by combining WMAP with other observations.