Search Results - "van der Horst, A J"
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A radio jet from the optical and x-ray bright stellar tidal disruption flare ASASSN-14li
Published in Science (American Association for the Advancement of Science) (01-01-2016)“…The tidal disruption of a star by a supermassive black hole leads to a short-lived thermal flare. Despite extensive searches, radio follow-up observations of…”
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THE WIND NEBULA AROUND MAGNETAR SWIFT J1834.9-0846
Published in The Astrophysical journal (20-06-2016)“…ABSTRACT We report on the analysis of two deep XMM-Newton observations of the magnetar Swift J1834.9−0846 and its surrounding extended emission taken in 2014…”
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3
A Detailed Radio Study of the Energetic, Nearby, and Puzzling GRB 171010A
Published in Monthly notices of the Royal Astronomical Society (01-06-2019)“…We present the results of an intensive multi-epoch radio frequency campaign on the energetic and nearby GRB 171010A with the Karl G. Janksy Very Large Array…”
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4
A mildly relativistic radio jet from the otherwise normal type Ic supernova 2007gr
Published in Nature (London) (28-01-2010)“…The class of type Ic supernovae have drawn increasing attention since 1998 owing to their sparse association (only four so far) with long duration -ray bursts…”
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5
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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6
Rapid spectral variability of a giant flare from a magnetar in NGC 253
Published in Nature (London) (14-01-2021)“…Magnetars are neutron stars with extremely strong magnetic fields (10 13 to 10 15 gauss) 1 , 2 , which episodically emit X-ray bursts approximately 100…”
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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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THE AFTERGLOW AND EARLY-TYPE HOST GALAXY OF THE SHORT GRB 150101B AT z = 0.1343
Published in The Astrophysical journal (20-12-2016)“…ABSTRACT We present the discovery of the X-ray and optical afterglows of the short-duration GRB 150101B, pinpointing the event to an early-type host galaxy at…”
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Jet-cocoon geometry in the optically dark, very high energy gamma-ray burst 201216C
Published in Monthly notices of the Royal Astronomical Society (03-05-2022)“…ABSTRACT We present the results of a radio observing campaign on GRB 201216C, combined with publicly available optical and X-ray data. The detection of very…”
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10
An expanding radio nebula produced by a giant flare from the magnetar SGR 1806-20
Published in Nature (28-04-2005)“…Soft γ-ray repeaters (SGRs) are 'magnetars', a small class of slowly spinning neutron stars with extreme surface magnetic fields, B 1015 gauss (refs 1 , 2 -3)…”
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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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Gamma-Ray Burst Afterglows as Probes of Environment and Blast Wave Physics. I. Absorption by Host-Galaxy Gas and Dust
Published in The Astrophysical journal (01-06-2007)“…We use a new approach to obtain limits on the absorbing columns toward an initial sample of 10 long gamma-ray bursts observed with BeppoSAX and selected on the…”
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13
Testing the blast wave model with Swift GRBs
Published in Monthly notices of the Royal Astronomical Society (01-05-2009)“…The complex structure of the light curves of Swift Gamma-Ray Bursts (GRBs) has made the identification of breaks, and the interpretation of the blast wave…”
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14
An extremely powerful long-lived superluminal ejection from the black hole MAXI J1820+070
Published in Nature astronomy (01-07-2020)“…Black holes in binary systems execute patterns of outburst activity where two characteristic X-ray states are associated with different behaviours observed at…”
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Polarimetry of relativistic tidal disruption event Swift J2058+0516
Published in Monthly notices of the Royal Astronomical Society (01-01-2020)“…A small fraction of candidate tidal disruption events (TDEs) show evidence of powerful relativistic jets, which are particularly pronounced at radio…”
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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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Are the missing X-ray breaks in gamma-ray burst afterglow light curves merely hidden?
Published in Monthly notices of the Royal Astronomical Society (01-05-2008)“…Gamma-ray burst (GRB) afterglow observations in the Swift era have a perceived lack of achromatic jet breaks compared to the BeppoSAX or pre-Swift era…”
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Constraints on short gamma-ray burst physics and their host galaxies from systematic radio follow-up campaigns
Published in Monthly notices of the Royal Astronomical Society (01-08-2024)“…ABSTRACT Short gamma-ray bursts (GRBs) are explosive transients caused by binary mergers of compact objects containing at least one neutron star…”
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The Early Radio Afterglow of Short GRB 230217A
Published in Astrophysical journal. Letters (01-11-2024)“…Abstract We present the radio afterglow of short gamma-ray burst (GRB) 230217A, which was detected less than 1 day after the gamma-ray prompt emission with the…”
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QUASI-PERIODIC OSCILLATIONS IN SHORT RECURRING BURSTS OF THE SOFT GAMMA REPEATER J1550–5418
Published in The Astrophysical journal (01-06-2014)“…The discovery of quasi-periodic oscillations (QPOs) in magnetar giant flares has opened up prospects for neutron star asteroseismology. The scarcity of giant…”
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