中文
相关论文

相关论文: The SKA Particle Array Prototype: The First Partic…

200 篇论文

We present Murchison Widefield Array (MWA) monitoring of the Kepler K2 mission Fields 3, 4, and 5 at frequencies of 155 and 186 MHz, from observations contemporaneous with the K2 observations. This work follows from previous MWA and GMRT…

高能天体物理现象 · 物理学 2019-07-10 S. J. Tingay , P. J Hancock

The Square Kilometre Array (SKA) provides an excellent opportunity for low cost searches for fast radio transients. The increased sensitivity and field of view of the SKA compared with other radio telescopes will make it an ideal instrument…

天体物理仪器与方法 · 物理学 2015-05-28 T. M. Colegate , N. Clarke

We present observations of high-amplitude rapid (2 s) variability toward two bright, compact extragalactic radio sources out of several hundred of the brightest radio sources in one of the 30x30 deg MWA Epoch of Reionization fields using…

Recent advances in low-cost, portable cosmic-ray detectors have broadened citizen-science engagement in particle physics studies. Imaging applications such as muography, however, remain largely inaccessible because existing detectors…

We describe the design and performance of the Engineering Development Array (EDA), which is a low frequency radio telescope comprising 256 dual-polarisation dipole antennas working as a phased-array. The EDA was conceived of, developed, and…

We report the discovery of the first new pulsar with the Murchison Widefield Array (MWA), PSR J0036$-$1033, a long-period (0.9 s) nonrecycled pulsar with a dispersion measure (DM) of 23.1 ${\rm pc\,cm^{-3}}$. It was found after processing…

A systematic study of 80 known pulsars observed at 185 MHz has been conducted using archival incoherent-sum data from the Murchison Widefield Array (MWA). The dataset comprises 48 drift-scan observations from the MWA Voltage Capture System,…

高能天体物理现象 · 物理学 2025-10-13 Ting Yu , Hongyu Gong , Zhifu Gao , Zhongli Zhang , Zhigang Wen , Yujie Wang , Tao An

Our previously reported survey of the Low Earth Orbit (LEO) environment using the Murchison Widefield Array (MWA) detected over 70 unique Resident Space Objects (RSOs) over multiple passes, from 20 hours of observations in passive radar…

天体物理仪器与方法 · 物理学 2022-07-20 Steve Prabu , Paul J Hancock , Xiang Zhang , Steven J Tingay , Torrance Hodgson , Brian Crosse , Melanie Johnston-Hollitt

We discuss the detection of redshifted line and continuum emission at radio wavelengths using a Square Kilometer Array (SKA), specifically from low-excitation rotational molecular line transitions of CO and HCN (molecular lines), the…

天体物理学 · 物理学 2009-11-10 Andrew W. Blain , C. L. Carilli , Jeremy Darling

We present the design and science case for a new array of radio antennas to be located at the Pierre Auger Observatory. Six stations of three SKALA antennas each will be deployed around a single water-Cherenkov surface detector triggering…

The Square Kilometre Array (SKA) is a planned radio interferometer of unprecedented scale that will revolutionize low-frequency radio astronomy when completed. In particular, one of its core science drivers is the systematic mapping of the…

宇宙学与河外天体物理 · 物理学 2022-01-11 Nichole Barry , Gianni Bernardi , Bradley Greig , Nicholas Kern , Florent Mertens

We explore the possibilities of measuring the longitudinal profile of individual air showers beyond $X_{\rm max}$ when using very dense radio arrays such as SKA. The low-frequency part of the Square Kilometre Array, to be built in…

Bodies such as planets, moons, and asteroids in our solar system are the brightest objects in the low-frequency radio astronomy at $\lesssim$ 10 GHz. The low-frequency radio emissions from our solar system bodies exhibit various observed…

地球与行星天体物理 · 物理学 2023-03-15 Tomoki Kimura , Yuka Fujii , Hajime Kita , Fuminori Tsuchiya , Hideo Sagawa , the SKA-Japan Planetary Science Team

Weak gravitational lensing measurements are traditionally made at optical wavelengths where many highly resolved galaxy images are readily available. However, the Square Kilometre Array (SKA) holds great promise for this type of measurement…

宇宙学与河外天体物理 · 物理学 2015-01-19 Prina Patel , Ian Harrison , Sphesihle Makhathini , Filipe Abdalla , David Bacon , Michael L. Brown , Ian Heywood , Matt Jarvis , Oleg Smirnov

We present the first dedicated observations of Interplanetary Scintillation (IPS) with the Murchison Widefield Array (MWA). We have developed a synthesis imaging technique, tailored to the properties of modern "large-N" low-frequency radio…

天体物理仪器与方法 · 物理学 2017-09-12 J . S. Morgan , J-P. Macquart , R. Ekers , R. Chhetri , M. Tokumaru , P. K. Manoharan , S. Tremblay , M. M. Bisi , B. V. Jackson

The Square Kilometre Array (SKA) is the radio telescope of the next generation, providing an increase in sensitivity and angular resolution of two orders of magnitude over existing telescopes. Currently, the SKA is expected to span the…

天体物理学 · 物理学 2009-11-13 A. J. Green , W. A. Baan

The Square Kilometre Array (SKA) project is an international effort to build the world's most sensitive radio telescope operating in the 50 MHz to 14 GHz frequency range. Construction of the SKA is divided into phases, with the first phase…

天体物理仪器与方法 · 物理学 2018-08-15 Sascha Schediwy , David Gozzard

Radio observations with the Square Kilometer Array (SKA) provide the agility, sensitivity, and spectral coverage to trace the evolution of the size, shape and spectra of gamma-ray burst (GRB) remnants from the earliest moments on. In the…

天体物理学 · 物理学 2007-05-23 T. J. Galama , A. G. De Bruyn

Next-generation radio arrays, including the Square Kilometre Array (SKA) and its pathfinders, will open up new avenues for exciting transient science at radio wavelengths. Their innovative designs, comprising a large number of small…

天体物理仪器与方法 · 物理学 2015-06-15 N. D. R. Bhat , J. N. Chengalur , P. J. Cox , Y. Gupta , J. Prasad , J. Roy , M. Bailes , S. Burke-Spolaor , S. S. Kudale , W. van Straten