activity
20142021
most citedEmpirical Covariance Modeling for 21 cm Power Spectrum Estimation: A Method Demonstration and New Limits from Early Murchison Widefield Array 128-Tile Data

122 citations · 289 across the 11 of their papers we have counts for

collaborators

11 papers

astro-ph.IM2021★ 2 cited

Short term minutes-time scale temporal variation statistics of sodium layer dynamics

Lu Feng, Kai Jin, Hong-Yang Li +10

The brightness and height of the sodium laser guide star of adaptive optics could vary significantly due to the temporal dynamics of sodium column density and the mean height of so…

astro-ph.IM2021★ 2 cited

Numerical study of a 20W class QCW pulsed sodium guide star laser's performances at five sites in China

Hongyang Li, Lu Feng, Junwei Zuo +6

In the past few years, Chinese astronomical community is actively testing astronomical sites for several new optical/infrared ground-based telescopes. These site testing campaigns…

astro-ph.IM2020★ 25 cited

Site-testing at Muztagh-ata site I: Ground Meteorology and Sky Brightness

Jing Xu, Ali Esamdin, Jin-xin Hao +28

Site-testing is crucial for achieving the goal of scientific research and analysis of meteorological and optical observing conditions is one of the basic tasks of it. As one of thr…

astro-ph.IM2020★ 26 cited

Site-testing at Muztagh-ata site II: Seeing statistics

Jing Xu, Ali Esamdin, Jin-xin Hao +28

In this article, we present a detailed analysis of the statistical properties of seeing for the Muztagh-ata site which is the candidate site for hosting future Chinese Large Optica…

astro-ph.IM2020★ 32 cited

Site testing campaign for the Large Optical/infrared Telescope of China: Overview

Lu Feng, Jin-Xin Hao, Zi-Huang Cao +35

The Large Optical/infrared Telescope (LOT) is a ground-based 12m diameter optical/infrared telescope which is proposed to be built in the western part of China in the next decade.…

astro-ph.IM2019★ 8 cited

Optical turbulence at Ali, China -- Results from the first year of lunar scintillometer observations

Paul Hickson, Lu Feng, Joschua A. Hellemeier +6

The location of an astronomical observatory is a key factor that affects its scientific productivity. The best astronomical sites are generally those found at high altitudes. Sever…

physics.space-ph2016★ 5 cited

A new angle for probing field-aligned irregularities with the Murchison Widefield Array

Shyeh Tjing Loi, Tara Murphy, Iver H. Cairns +5

Electron density irregularities in the ionosphere are known to be magnetically anisotropic, preferentially elongated along the lines of force. While many studies of their morpholog…

astro-ph.CO2015★ 122 cited

Empirical Covariance Modeling for 21 cm Power Spectrum Estimation: A Method Demonstration and New Limits from Early Murchison Widefield Array 128-Tile Data

Joshua S. Dillon, Abraham R. Neben, Jacqueline N. Hewitt +52

The separation of the faint cosmological background signal from bright astrophysical foregrounds remains one of the most daunting challenges of mapping the high-redshift intergalac…

physics.space-ph2015★ 1 cited

Real-time imaging of density ducts between the plasmasphere and ionosphere

Shyeh Tjing Loi, Tara Murphy, Iver H. Cairns +38

Ionization of the Earth's atmosphere by sunlight forms a complex, multi-layered plasma environment within the Earth's magnetosphere, the innermost layers being the ionosphere and p…

astro-ph.IM2014★ 66 cited

The Murchison Widefield Array Commissioning Survey: A Low-Frequency Catalogue of 14,110 Compact Radio Sources over 6,100 Square Degrees

Natasha Hurley-Walker, John Morgan, Randall B. Wayth +49

We present the results of an approximately 6,100 square degree 104--196MHz radio sky survey performed with the Murchison Widefield Array during instrument commissioning between 201…

astro-ph.GA2014

First Look Murchison Widefield Array observations of Abell 3667

L. Hindson, M. Johnston-Hollitt, N. Hurley-Walker +51

The Murchison Widefield Array (MWA) is a new low frequency interferometric radio telescope, operating in the remote Murchison Radio Observatory in Western Australia. In this paper…