R
Risa H. Wechsler
Researcher at Stanford University
Publications - 572
Citations - 63450
Risa H. Wechsler is an academic researcher from Stanford University. The author has contributed to research in topics: Galaxy & Dark matter. The author has an hindex of 116, co-authored 528 publications receiving 54728 citations. Previous affiliations of Risa H. Wechsler include University of Illinois at Urbana–Champaign & Massachusetts Institute of Technology.
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The Aemulus Project VI: Emulation of beyond-standard galaxy clustering statistics to improve cosmological constraints
Kate Storey-Fisher,Jeremy L. Tinker,Zhongxu Zhai,Joseph DeRose,Risa H. Wechsler,Arkanjan Banerjee +5 more
TL;DR: In this paper , the authors use the Aemulus suite of cosmological N -body simulations to construct Gaussian process emulators of galaxy clustering statistics at small scales ( 0 . 1 − 50 h − 1 Mpc ) in order to constrain cosmologically and galaxy bias parameters.
Posted Content
COMAP Early Science: V. Constraints and Forecasts at $z \sim 3$
Dongwoo T. Chung,Patrick C. Breysse,Kieran Cleary,Håvard T. Ihle,Hamsa Padmanabhan,Marta B. Silva,J. Richard Bond,Jowita Borowska,Morgan Catha,Sarah E. Church,Delaney A. Dunne,H. K. Eriksen,Marie Kristine Foss,Todd Gaier,Joshua O. Gundersen,Stuart Harper,Andrew I. Harris,Brandon S. Hensley,Richard J. Hobbs,Laura C. Keating,Junhan Kim,James W. Lamb,Charles R. Lawrence,Jonas G. S. Lunde,Norman Murray,T. J. Pearson,Liju Philip,Maren Rasmussen,Anthony C. S. Readhead,Thomas J. Rennie,Nils-Ole Stutzer,Bade Uzgil,Marco P. Viero,Duncan J. Watts,Risa H. Wechsler,Ingunn Kathrine Wehus,David P. Woody +36 more
TL;DR: In this paper, the authors present the current state of models for the CO line-intensity signal targeted by the CO Mapping Array Project (COMAP) Pathfinder in the context of its early science results.
Journal ArticleDOI
Using Cumulative Number Densities to Compare Galaxies across Cosmic Time
Peter Behroozi,Peter Behroozi,Danilo Marchesini,Risa H. Wechsler,Risa H. Wechsler,Adam Muzzin,Casey Papovich,Mauro Stefanon +7 more
TL;DR: The authors used abundance matching to estimate the median change in number density with redshift and provided a simple fit (+0.16 dex per unit Delta z) for progenitors of z = 0 galaxies.
Peer Review
Cluster Cosmology Without Cluster Finding
Enia Xhakaj,Alexie Leauthaud,Johannes U. Lange,Elisabeth Krause,Andrew P. Hearin,Song-nian Huang,Risa H. Wechsler,Sven Heydenreich +7 more
TL;DR: In this paper , a fiducial spectroscopic and stellar mass complete sample of galaxies drawn from the Dark Energy Spectroscopic Survey (DESI) was used to estimate the cosmological constraining power of super-massive galaxies.
Posted Content
Simultaneous Estimation of Large-Scale Structure and Milky Way Dust Extinction from Galaxy Surveys
TL;DR: In this paper, the authors explore the possibility of estimating both the dust extinction and large-scale structure from a single photometric galaxy survey, making use of the predictable manner in which Milky Way dust affects the measured brightness and colors of galaxies in a given sky location in several redshift bins.