activity
20092026
most citedThe alignment of satellite galaxies and cosmic filaments: observations and simulations

100 citations · 327 across the 17 of their papers we have counts for

collaborators

17 papers

astro-ph.CO2026

Overview of 21cm Experiments at high redshift with SKAO

CD Science Working Group, Gianni Bernardi, Daniela Breitman +81

We provide an overview of the eight SKAO Science Book chapters that motivate the Epoch of Reionisation and Cosmic Dawn experiments with SKA-Low. We describe the individual SKA-Low…

astro-ph.GA2025

Observed Anti-parallel Correlation Between Spiral Galaxy and Cosmic Filament Spins

Hao-da Wang, Peng Wang, Min Bao +7

Understanding the origin of galactic angular momentum and its connection to the cosmic web remains a pivotal issue in galaxy formation. Using kinematic data from the MaNGA survey,…

astro-ph.GA2022★ 4 cited

A compact symmetric ejection from the low mass AGN in the LINER galaxy NGC 4293

Xiaolong Yang, Ruiling Wang, Quan Guo

We conducted a Very Long Baseline Array (VLBA) observation of the low mass active galactic nucleus (AGN) in galaxy NGC 4293 (). The object is associated with a low-ionizat…

astro-ph.IM2022

Global CD/EoR Signal Detection with a Dense Digital Beamforming Array and Beyond

Junhua Gu, Jingying Wang, Huanyuan Shan +5

The global neutral hydrogen 21 cm signal extracted from the all-sky averaged radio spectra is one of the signatures of the Cosmic Dawn and Epoch of Reionization (CD/EoR). The frequ…

astro-ph.GA2022★ 4 cited

Impact of the turnover in the high-z galaxy luminosity function on the 21-cm signal during Cosmic Dawn and Epoch of Reionization

Zekang Zhang, Huanyuan Shan, Junhua Gu +6

The shape of the faint-end of the high-z galaxy luminosity function (LF) informs early star formation and reionization physics during the Cosmic Dawn and Epoch of Reionization. Unt…

astro-ph.GA2021★ 60 cited

Possible observational evidence that cosmic filaments spin

Peng Wang, Noam I. Libeskind, Elmo Tempel +2

Most cosmological structures in the universe spin. Although structures in the universe form on a wide variety of scales from small dwarf galaxies to large super clusters, the gener…

astro-ph.IM2021★ 2 cited

External Calibrator in Global Signal Experiment for Detection of the Epoch of Reionization

Yan Huang, Xiang-Ping Wu, Quan Guo +5

We present a conceptual design study of external calibrators in the 21 cm experiment towards detecting the globally averaged radiation of the epoch of reionization (EoR). Employmen…

astro-ph.GA2021★ 18 cited

The lopsided distribution of satellites of isolated central galaxies

Peng Wang, Noam I. Libeskind, Marcel S. Pawlowski +4

Satellites are not randomly distributed around their central galaxies but show polar and planar structures. In this paper, we investigate the axis-asymmetry or lopsidedness of sate…

astro-ph.CO2020★ 10 cited

A robust determination of halo environment in the cosmic field

Peng Wang, Xi Kang, Noam I. Libeskind +3

A number of methods for studying the large-scale cosmic matter distribution exist in the literature. One particularly common method employed to define the cosmic web is to examine…

astro-ph.GA2019★ 16 cited

The Origin of Lopsided Satellite Galaxy Distribution in Galaxy Pairs

Chen Chris Gong, Noam I Libeskind, Elmo Tempel +6

It is well known that satellite galaxies are not isotropically distributed among their host galaxies as suggested by most interpretations of the CDM model. One type of anisotrop…

astro-ph.IM2018★ 6 cited

Pre-selection of the Candidate Fields for Deep Imaging of the Epoch of Reionization with SKA1-Low

Qian Zheng, Xiang-Ping Wu, Quan Guo +4

The Square Kilometre Array (SKA) will be the first low-frequency instrument with the capability to directly image the structures of the Epoch of Reionization (EoR). Indeed, deep im…

astro-ph.GA2018★ 64 cited

The spin alignment of galaxies with the large-scale tidal field in hydrodynamic simulations

Peng Wang, Quan Guo, Xi Kang +1

The correlation between the spins of dark matter halos and the large-scale structure (LSS) has been studied in great detail over a large redshift range, while investigations of gal…

astro-ph.GA2018★ 13 cited

The shape alignment of satellite galaxies in galaxy pairs in SDSS

Peng Wang, Quan Guo, Noam I. Libeskind +3

It has been shown, both in simulations and observationally, that the tidal field of a large galaxy can torque its satellites such that the major axis of satellite galaxies points t…

astro-ph.GA2018★ 22 cited

Alignment between satellite and central galaxies in the SDSS DR7: dependence on large-scale environment

Peng Wang, Yu Luo, Xi Kang +5

The alignment between satellites and central galaxies has been studied in detail both in observational and theoretical works. The widely accepted fact is that the satellites prefer…

astro-ph.CO2015★ 100 cited

The alignment of satellite galaxies and cosmic filaments: observations and simulations

E. Tempel, Q. Guo, R. Kipper +1

The accretion of satellites onto central galaxies along vast cosmic filaments is an apparent outcome of the anisotropic collapse of structure in our Universe. Numerical work (based…

astro-ph.CO2009★ 7 cited

Modelling the WMAP large-angle anomalies as an effect of a local density inhomogeneity

Li-Ping He, Quan Guo

We investigate large-angle scale temperature anisotropy in the Cosmic Microwave Background (CMB) with the Wilkinson Microwave Anisotropy Probe (WMAP) data and model the large-angle…

astro-ph.CO2009★ 1 cited

A Search for X-Ray Reionization Signatures from Cross-Correlation of Wmap and ROSAT Rass Data

Quan Guo, Xiang-Ping Wu, HaiGuang Xu +1

We present an observational search for the possible correlation between cosmic microwave background (CMB) polarization map and soft X-ray background (SXRB) based on the ROSAT All-s…