Search Results - "Gaensler, B. M."
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The Dispersion and Rotation Measure of Supernova Remnants and Magnetized Stellar Winds: Application to Fast Radio Bursts
Published in The Astrophysical journal (10-07-2018)“…Recent studies of fast radio bursts (FRBs) have led to many theories associating them with young neutron stars. If this is the case, then the presence of…”
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FAST RADIO BURSTS AS PROBES OF MAGNETIC FIELDS IN THE INTERGALACTIC MEDIUM
Published in The Astrophysical journal (20-06-2016)“…ABSTRACT We examine the proposal that the dispersion measures (DMs) and Faraday rotation measures (RMs) of extragalactic linearly polarized fast radio bursts…”
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3
Future Cosmological Constraints From Fast Radio Bursts
Published in The Astrophysical journal (20-03-2018)“…We consider the possible observation of fast radio bursts (FRBs) with planned future radio telescopes, and investigate how well the dispersions and redshifts…”
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Differences in Faraday Rotation between Adjacent Extragalactic Radio Sources as a Probe of Cosmic Magnetic Fields
Published in The Astrophysical journal (20-06-2019)“…Faraday rotation measures (RMs) of extragalactic radio sources provide information on line-of-sight magnetic fields, including contributions from our Galaxy,…”
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Constraints on the distribution and energetics of fast radio bursts using cosmological hydrodynamic simulations
Published in Monthly notices of the Royal Astronomical Society (21-08-2015)“…We present constraints on the origins of fast radio bursts (FRBs) using large cosmological simulations. We calculate contributions to FRB dispersion measures…”
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Magnetic Fields in Supernova Remnants and Pulsar-Wind Nebulae
Published in Space science reviews (01-05-2012)“…We review the observations of supernova remnants (SNRs) and pulsar-wind nebulae (PWNe) that give information on the strength and orientation of magnetic…”
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Compact continuum source finding for next generation radio surveys
Published in Monthly notices of the Royal Astronomical Society (01-05-2012)“…We present a detailed analysis of four of the most widely used radio source-finding packages in radio astronomy, and a program being developed for the…”
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Giant magnetized outflows from the centre of the Milky Way
Published in Nature (London) (03-01-2013)“…Two giant, linearly polarized radio lobes have been found emanating from the Galactic Centre, and are thought to originate in a biconical,…”
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A STUDY OF BROADBAND FARADAY ROTATION AND POLARIZATION BEHAVIOR OVER 1.3-10 GHz IN 36 DISCRETE RADIO SOURCES
Published in The Astrophysical journal (01-07-2016)“…ABSTRACT We present a broadband polarization analysis of 36 discrete polarized radio sources over a very broad, densely sampled frequency band. Our sample was…”
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Constraints on large-scale magnetic fields in the intergalactic medium using cross-correlation methods
Published in Monthly notices of the Royal Astronomical Society (01-05-2021)“…ABSTRACT Large-scale coherent magnetic fields in the intergalactic medium (IGM) are presumed to play a key role in the formation and evolution of the cosmic…”
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PROPERTIES OF INTERSTELLAR TURBULENCE FROM GRADIENTS OF LINEAR POLARIZATION MAPS
Published in The Astrophysical journal (20-04-2012)“…Faraday rotation of linearly polarized radio signals provides a very sensitive probe of fluctuations in the interstellar magnetic field and ionized gas density…”
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Another shock for the Bullet cluster, and the source of seed electrons for radio relics
Published in Monthly notices of the Royal Astronomical Society (11-05-2015)“…With Australia Telescope Compact Array observations, we detect a highly elongated Mpc-scale diffuse radio source on the eastern periphery of the Bullet cluster…”
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Fast radio burst dispersion measures and rotation measures and the origin of intergalactic magnetic fields
Published in Monthly notices of the Royal Astronomical Society (21-09-2019)“…ABSTRACT We investigate the possibility of measuring intergalactic magnetic fields using the dispersion measures and rotation measures of fast radio bursts…”
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14
Low-Mach-number turbulence in interstellar gas revealed by radio polarization gradients
Published in Nature (London) (13-10-2011)“…Turbulence in the Milky Way Turbulence is a well-studied phenomenon in disciplines ranging from meteorology to cardiology, but astrophysical turbulence —…”
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Improving the Epoch of Reionization Power Spectrum Results from Murchison Widefield Array Season 1 Observations
Published in The Astrophysical journal (10-10-2019)“…Measurements of 21 cm Epoch of Reionization (EoR) structure are subject to systematics originating from both the analysis and the observation conditions. Using…”
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A Sudden Period of High Activity from Repeating Fast Radio Burst 20201124A
Published in The Astrophysical journal (01-03-2022)“…Abstract The repeating FRB 20201124A was first discovered by CHIME/FRB in November of 2020, after which it was seen to repeat a few times over several months…”
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STATISTICAL TECHNIQUES FOR DETECTING THE INTERGALACTIC MAGNETIC FIELD FROM LARGE SAMPLES OF EXTRAGALACTIC FARADAY ROTATION DATA
Published in The Astrophysical journal (01-08-2014)“…Rotation measure (RM) grids of extragalactic radio sources have been widely used for studying cosmic magnetism. However, their potential for exploring the…”
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Complex Faraday depth structure of active galactic nuclei as revealed by broad-band radio polarimetry
Published in Monthly notices of the Royal Astronomical Society (01-04-2012)“…We present a detailed study of the Faraday depth structure of four bright (>1 Jy), strongly polarized, unresolved radio-loud quasars. The Australia Telescope…”
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Extragalactic Peaked-spectrum Radio Sources at Low Frequencies
Published in The Astrophysical journal (20-02-2017)“…We present a sample of 1483 sources that display spectral peaks between 72 MHz and 1.4 GHz, selected from the GaLactic and Extragalactic All-sky Murchison…”
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FARADAY ROTATION FROM MAGNESIUM II ABSORBERS TOWARD POLARIZED BACKGROUND RADIO SOURCES
Published in The Astrophysical journal (01-11-2014)“…Strong singly ionized magnesium (Mg II) absorption lines in quasar spectra typically serve as a proxy for intervening galaxies along the line of sight…”
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