14 citations · 14 across the 1 of their papers we have counts for
6 papers
Brightest Cluster Galaxies Are Statistically Special From to
Roohi Dalal, Michael A. Strauss, Tomomi Sunayama +5
We study Brightest Cluster Galaxies (BCGs) in galaxy clusters from the Hyper Suprime-Cam (HSC) Subaru Strategic Program. The sample is selected over an area of 830 $\tex…
The impact of projection effects on cluster observables: stacked lensing and projected clustering
Tomomi Sunayama, Youngsoo Park, Masahiro Takada +6
An optical cluster finder inevitably suffers from projection effects, where it misidentifies a superposition of galaxies in multiple halos along the line-of-sight as a single clust…
The splashback radius of optically selected clusters with Subaru HSC Second Public Data Release
Ryoma Murata, Tomomi Sunayama, Masamune Oguri +4
Recent constraints on the splashback radius around optically selected galaxy clusters from the redMaPPer cluster-finding algorithm in the literature have shown that the observed sp…
Mitigating the impact of fiber assignment on clustering measurements from deep galaxy redshift surveys
Tomomi Sunayama, Masahiro Takada, Martin Reinecke +6
We examine the impact of fiber assignment on clustering measurements from fiber-fed spectroscopic galaxy surveys. We identify new effects which were absent in previous, relatively…
On the measurements of assembly bias and splashback radius using optically selected galaxy clusters
Tomomi Sunayama, Surhud More
We critically examine the methodology behind the claimed observational detection of halo assembly bias using optically selected galaxy clusters by Miyatake et al. (2016) and More e…
Bispectrum as Baryon Acoustic Oscillation Interferometer
Hillary L. Child, Masahiro Takada, Takahiro Nishimichi +4
The galaxy bispectrum, measuring excess clustering of galaxy triplets, offers a probe of dark energy via baryon acoustic oscillations (BAOs). However up to now it has been severely…