Institute of Astronomy and Astrophysics, Academia Sinica

output

19962026

most citedPlanck 2013 results. XVI. Cosmological parameters

6.6k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

collaborating institutions

Showing 2017 · astro-ph.COShow all

28 papers · 2 filters

astro-ph.CO2017★ 21 cited

Multi-Phenomena Modeling of the New Bullet Cluster, ZwCl008.8+52, using N-body/hydrodynamical Simulations

Sandor M. Molnar, Tom Broadhurst

We use hydrodynamical/N-body simulations to interpret the newly discovered Bullet-cluster-like merging cluster, ZwCl 0008.8+5215 (ZwCl 0008 hereafter), where a dramatic collision i…

astro-ph.CO2017★ 38 cited

Strong orientation dependence of surface mass density profiles of dark haloes at large scales

Ken Osato, Takahiro Nishimichi, Masamune Oguri +2

We study the dependence of surface mass density profiles, which can be directly measured by weak gravitational lensing, on the orientation of haloes with respect to the line-of-sig…

astro-ph.CO2017★ 56 cited

H0LiCOW VIII. A weak lensing measurement of the external convergence in the field of the lensed quasar HE0435 $-$ 1223

O. Tihhonova, F. Courbin, D. Harvey +10

We present a weak gravitational lensing measurement of the external convergence along the line of sight to the quadruply lensed quasar HE0435 $-$ 1223. Using deep r-band images f…

astro-ph.CO2017★ 33 cited

Galaxy Kinematics and Mass Calibration in Massive SZE Selected Galaxy Clusters to z=1.3

R. Capasso, A. Saro, J. J. Mohr +27

The galaxy phase-space distribution in galaxy clusters provides insights into the formation and evolution of cluster galaxies, and it can also be used to measure cluster mass profi…

astro-ph.CO2017★ 49 cited

Growing a `Cosmic Beast': Observations and Simulations of MACS J0717.5+3745

M. Jauzac, D. Eckert, M. Schaller +18

We present a gravitational lensing and X-ray analysis of a massive galaxy cluster and its surroundings. The core of MACS\,J0717.5+3745 ( $M (R < 1 Mpc) \sim$ \, $2$ $\times$ $10^{15}…

astro-ph.CO2017★ 114 cited

Baryon Content in a Sample of 91 Galaxy Clusters Selected by the South Pole Telescope at 0.2 < z < 1.25

I. Chiu, J. J. Mohr, M. McDonald +89

We estimate total mass ( $M_{500}$ ), intracluster medium (ICM) mass ( $M_{ICM}$ ) and stellar mass ( $M_{⋆}$ ) in a Sunyaev-Zel'dovich effect (SZE) selected sample of 91 ga…

astro-ph.CO2017★ 177 cited

Lack of clustering in low-redshift 21-cm intensity maps cross-correlated with 2dF galaxy densities

C. J. Anderson, N. J. Luciw, Y. -C. Li +13

We report results from 21-cm intensity maps acquired from the Parkes radio telescope and cross-correlated with galaxy maps from the 2dF galaxy survey. The data span the redshift ra…

astro-ph.CO2017★ 162 cited

Line-Intensity Mapping: 2017 Status Report

Ely D. Kovetz, Marco P. Viero, Adam Lidz +45

Following the first two annual intensity mapping workshops at Stanford in March 2016 and Johns Hopkins in June 2017, we report on the recent advances in theory, instrumentation and…

astro-ph.CO2017★ 34 cited

First results on the cluster galaxy population from the Subaru Hyper Suprime-Cam survey. II. Faint end color-magnitude diagrams and radial profiles of red and blue galaxies at $0.1 < z < 1.1$

Atsushi J. Nishizawa, Masamue Oguri, Taira Oogi +16

We present a statistical study of the redshift evolution of the cluster galaxy population over a wide redshift range from 0.1 to 1.1, using $\sim 1900$ optically-selected CAMIRA cl…

astro-ph.CO2017★ 67 cited

VLA Radio Observations of the HST Frontier Fields Cluster Abell 2744: The Discovery of New Radio Relics

C. J. J. Pearce, R. J. van Weeren, F. Andrade-Santos +12

Cluster mergers leave distinct signatures in the ICM in the form of shocks and diffuse cluster radio sources that provide evidence for the acceleration of relativistic particles. H…

astro-ph.CO2017★ 24 cited

The Subaru FMOS galaxy redshift survey (FastSound). V. Intrinsic alignments of emission line galaxies at $z \sim 1.4$

Motonari Tonegawa, Teppei Okumura, Tomonori Totani +3

Intrinsic alignments (IA), the coherent alignment of intrinsic galaxy orientations, can be a source of a systematic error of weak lensing surveys. The redshift evolution of IA also…

astro-ph.CO2017★ 17 cited

Large-scale structure in mimetic Horndeski gravity

Frederico Arroja, Teppei Okumura, Nicola Bartolo +2

In this paper, we propose to use the mimetic Horndeski model as a model for the dark universe. Both cold dark matter (CDM) and dark energy (DE) phenomena are described by a single…

astro-ph.CO2017★ 26 cited

Intrinsic Alignments and Splashback Radius of Dark Matter Halos from Cosmic Density and Velocity Fields

Teppei Okumura, Takahiro Nishimichi, Keiichi Umetsu +1

We investigate the effects of intrinsic alignments (IA) of dark-matter halo shapes on cosmic density and velocity fields from cluster to cosmic scales beyond 100 Mpc/h. Besides the…

astro-ph.CO2017★ 7 cited

Probing supervoids with weak lensing

Yuichi Higuchi, Kaiki Taro Inoue

The cosmic microwave background (CMB) has non-Gaussian features in the temperature fluctuations. An anomalous cold spot surrounded with a hot ring, called the Cold Spot is one of s…

astro-ph.CO2017★ 63 cited

Search for CII Emission on Cosmological Scales at Redshift Z~2.6

Anthony R. Pullen, Paolo Serra, Tzu-Ching Chang +2

We present a search for CII emission over cosmological scales at high-redshifts. The CII line is a prime candidate to be a tracer of star formation over large-scale structure since…

astro-ph.CO2017★ 48 cited

MACS J0416.1-2403: Impact of line-of-sight structures on strong gravitational lensing modelling of galaxy clusters

G. Chirivì, S. H. Suyu, C. Grillo +5

Exploiting the powerful tool of strong gravitational lensing by galaxy clusters to study the highest-redshift Universe and cluster mass distributions relies on precise lens mass mo…

astro-ph.CO2017★ 60 cited

Planck Sunyaev-Zel'dovich Cluster Mass Calibration using Hyper Suprime-Cam Weak Lensing

Elinor Medezinski, Nicholas Battaglia, Keiichi Umetsu +9

Using $\sim$ 140 deg $^{2}$ Subaru Hyper Suprime-Cam (HSC) survey data, we stack the weak lensing (WL) signal around five Planck clusters found within the footprint. This yields a 15$σ…

astro-ph.CO2017★ 80 cited

Source Selection for Cluster Weak Lensing Measurements in the Hyper Suprime-Cam Survey

Elinor Medezinski, Masamune Oguri, Atsushi J. Nishizawa +13

We present optimized source galaxy selection schemes for measuring cluster weak lensing (WL) mass profiles unaffected by cluster member dilution from the Subaru Hyper Suprime-Cam S…

astro-ph.CO2017★ 25 cited

A direct measure of free electron gas via the Kinematic Sunyaev-Zel'dovich effect in Fourier-space analysis

Naonori S. Sugiyama, Teppei Okumura, David N. Spergel

We present the measurement of the kinematic Sunyaev-Zel'dovich (kSZ) effect in Fourier space, rather than in real space. We measure the density-weighted pairwise kSZ power spectrum…

astro-ph.CO2017★ 14 cited

Multiwavelength study of X-ray Luminous Clusters in the Hyper Suprime-Cam Subaru Strategic Program S16A field

Keita Miyaoka, Nobuhiro Okabe, Takao Kitaguchi +34

We present a joint X-ray, optical and weak-lensing analysis for X-ray luminous galaxy clusters selected from the MCXC (Meta-Catalog of X-Ray Detected Clusters of Galaxies) cluster…

astro-ph.CO2017★ 241 cited

The first-year shear catalog of the Subaru Hyper Suprime-Cam SSP Survey

Rachel Mandelbaum, Hironao Miyatake, Takashi Hamana +28

We present and characterize the catalog of galaxy shape measurements that will be used for cosmological weak lensing measurements in the Wide layer of the first year of the Hyper S…

astro-ph.CO2017★ 2 cited

CLASH-VLT: constraints on $f (R)$ gravity models with galaxy clusters using lensing and kinematic analyses

L. Pizzuti, B. Sartoris, L. Amendola +10

We perform a maximum likelihood kinematic analysis of the two dynamically relaxed galaxy clusters MACS J1206.2-0847 at $z = 0.44$ and RXC J2248.7-4431 at $z = 0.35$ to determine the to…