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First measurement of gravitational lensing by cosmic voids in SDSS
Peter Melchior, P. M. Sutter, Erin S. Sheldon +2
We report the first measurement of the diminutive lensing signal arising from matter underdensities associated with cosmic voids. While undetectable individually, by stacking the w…
Detection of Lyβauto-correlations and Lyα-Lyβcross-correlations in BOSS Data Release 9
Vid Iršič, Anže Slosar, Stephen Bailey +13
The Lyman- forest refers to a region in the spectra of distant quasars that lies between the rest-frame Lyman- and Lyman- emissions. The forest in this region is dominated…
Studying Inter-Cluster Galaxy Filaments Through Stacking GMBCG Galaxy Cluster Pairs
Yuanyuan Zhang, Jörg P. Dietrich, Timothy A. McKay +2
We present a method to study the photometric properties of galaxies in filaments by stacking the galaxy populations between pairs of galaxy clusters. Using Sloan Digital Sky Survey…
Measurement of Baryon Acoustic Oscillations in the Lyman-alpha Forest Fluctuations in BOSS Data Release 9
Anže Slosar, Vid Iršič, David Kirkby +41
We use the Baryon Oscillation Spectroscopic Survey (BOSS) Data Release 9 (DR9) to detect and measure the position of the Baryonic Acoustic Oscillation (BAO) feature in the three-di…