Search Results - "Wijers, R."
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1
Coherent curvature radiation: maximum luminosity and high-energy emission
Published in Monthly notices of the Royal Astronomical Society. Letters (01-11-2021)“…ABSTRACT High brightness temperature radio transients such as pulsars and fast radio bursts (FRBs) require the coherent radiation of particles. The antenna…”
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2
Constraining a neutron star merger origin for localized fast radio bursts
Published in Monthly notices of the Royal Astronomical Society (01-09-2020)“…ABSTRACT What the progenitors of fast radio bursts (FRBs) are, and whether there are multiple types of progenitors are open questions. The advent of localized…”
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3
Exploring the GRB population: robust afterglow modelling
Published in Monthly notices of the Royal Astronomical Society (15-02-2022)“…ABSTRACT Gamma-ray bursts (GRBs) are ultra-relativistic collimated outflows, which emit synchrotron radiation throughout the entire electromagnetic spectrum…”
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4
Constraining properties of GRB magnetar central engines using the observed plateau luminosity and duration correlation
Published in Monthly notices of the Royal Astronomical Society (11-09-2014)“…An intrinsic correlation has been identified between the luminosity and duration of plateaus in the X-ray afterglows of gamma-ray bursts (GRBs; Dainotti et al…”
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5
Radio afterglows of very high-energy gamma-ray bursts 190829A and 180720B
Published in Monthly notices of the Royal Astronomical Society (11-08-2020)“…ABSTRACT We present high-cadence multifrequency radio observations of the long gamma-ray burst (GRB) 190829A, which was detected at photon energies above 100…”
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6
The AARTFAAC Cosmic Explorer: observations of the 21-cm power spectrum in the EDGES absorption trough
Published in Monthly notices of the Royal Astronomical Society (01-12-2020)“…ABSTRACT The 21-cm absorption feature reported by the EDGES collaboration is several times stronger than that predicted by traditional astrophysical models. If…”
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LOFAR early-time search for coherent radio emission from short GRB 181123B
Published in Monthly notices of the Royal Astronomical Society (01-10-2021)“…ABSTRACT The mergers of two neutron stars are typically accompanied by broad-band electromagnetic emission from either a relativistic jet or a kilonova. It has…”
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8
Pulsar revival in neutron star mergers: multimessenger prospects for the discovery of pre-merger coherent radio emission
Published in Monthly notices of the Royal Astronomical Society (09-01-2023)“…ABSTRACT We investigate pre-merger coherent radio emission from neutron star mergers arising due to the magnetospheric interaction between compact objects. We…”
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9
A new approach to modelling gamma-ray burst afterglows: using Gaussian processes to account for the systematics
Published in Monthly notices of the Royal Astronomical Society (01-10-2020)“…ABSTRACT The afterglow emission from gamma-ray bursts (GRBs) is a valuable source of information to understand the physics of these energetic explosions. The…”
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10
Searching for low radio-frequency gravitational wave counterparts in wide-field LOFAR data
Published in Monthly notices of the Royal Astronomical Society (01-02-2022)“…ABSTRACT The electromagnetic counterparts to gravitational wave (GW) merger events are highly sought after, but difficult to find owing to large localization…”
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LOFAR observations of gravitational wave merger events: O3 results and O4 strategy
Published in Monthly notices of the Royal Astronomical Society (08-06-2023)“…ABSTRACT The electromagnetic counterparts to gravitational wave (GW) merger events hold immense scientific value, but are difficult to detect due to the…”
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12
The Arcminute Microkelvin Imager catalogue of gamma-ray burst afterglows at 15.7 GHz
Published in Monthly notices of the Royal Astronomical Society (01-01-2018)“…Abstract We present the Arcminute Microkelvin Imager (AMI) Large Array catalogue of 139 gamma-ray bursts (GRBs). AMI observes at a central frequency of 15.7…”
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13
The fraction of ionizing radiation from massive stars that escapes to the intergalactic medium
Published in Monthly notices of the Royal Astronomical Society (11-03-2019)“…Whether stars could have driven the reionization of the intergalactic medium depends critically on the proportion of ionizing radiation that escapes the…”
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14
Needle-like structures discovered on positively charged lightning branches
Published in Nature (London) (01-04-2019)“…Lightning is a dangerous yet poorly understood natural phenomenon. Lightning forms a network of plasma channels propagating away from the initiation point with…”
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21 new long-term variables in the GX 339−4 field: two years of MeerKAT monitoring
Published in Monthly notices of the Royal Astronomical Society (12-04-2022)“…ABSTRACT We present 21 new long-term variable radio sources found commensally in 2 yr of weekly MeerKAT monitoring of the low-mass X-ray binary GX 339−4. The…”
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Intra-tumoral production of IL18, but not IL12, by TCR-engineered T cells is non-toxic and counteracts immune evasion of solid tumors
Published in Oncoimmunology (02-01-2018)“…Adoptive therapy with engineered T cells shows promising results in treating patients with malignant disease, but is challenged by incomplete responses and…”
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The optical afterglow of the short gamma-ray burst associated with GW170817
Published in Nature astronomy (01-09-2018)“…The binary neutron star merger GW170817 was the first multi-messenger event observed in both gravitational and electromagnetic waves 1 , 2 . The…”
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Search and identification of transient and variable radio sources using MeerKAT observations: a case study on the MAXI J1820+070 field
Published in Monthly notices of the Royal Astronomical Society (20-10-2022)“…ABSTRACT Many transient and variable sources detected at multiple wavelengths are also observed to vary at radio frequencies. However, these samples are…”
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A comprehensive radio view of the extremely bright gamma-ray burst 130427A
Published in Monthly notices of the Royal Astronomical Society (11-11-2014)“…GRB 130427A was extremely bright as a result of occurring at low redshift whilst the energetics were more typical of high-redshift gamma-ray bursts (GRBs). We…”
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20
Testing afterglow models of FRB 200428 with early post-burst observations of SGR 1935 + 2154
Published in Monthly notices of the Royal Astronomical Society (10-11-2022)“…ABSTRACT We present LOFAR imaging observations from the April/May 2020 active episode of magnetar SGR 1935 + 2154. We place the earliest radio limits on…”
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