output
19932026
most citedMethods and results of an automatic analysis of a complete sample of Swift-XRT observations of GRBs

1.8k citations

Showing 2019 · astro-ph.HEShow all

38 papers · 2 filters

astro-ph.HE2019★ 66 cited

Constraining the magnetic field structure in collisionless relativistic shocks with a radio afterglow polarization upper limit in GW170817

Ramandeep Gill, Jonathan Granot

Gamma-ray burst afterglows arise from relativistic collisionless shocks in which the postshock tangled magnetic field is produced by the two-stream and/or Weibel instabil…

astro-ph.HE2019★ 4 cited

GRB 190114C in the nuclear region of an interacting galaxy -- A detailed host analysis using ALMA, HST and VLT

A. de Ugarte Postigo, C. C. Thöne, S. Martın +28

GRB 190114C is the first GRB for which the detection of very-high energy emission up to the TeV range has been reported. It is still unclear whether environmental properties might…

astro-ph.HE2019★ 10 cited

Bright gamma-ray flares observed in GRB131108A

Donggeun Tak, Z. Lucas Uhm, Bing Zhang

GRB 131108A is a bright long Gamma-Ray Burst (GRB) detected by the Large Area Telescope and the Gamma-ray Burst Monitor on board the Fermi Gamma-ray Space Telescope. Dedicated temp…

astro-ph.HE2019★ 18 cited

Polarimetry of relativistic tidal disruption event Swift J2058+0516

K. Wiersema, A. B. Higgins, A. J. Levan +8

A small fraction of candidate tidal disruption events (TDEs) show evidence of powerful relativistic jets, which are particularly pronounced at radio wavelengths, and likely contrib…

astro-ph.HE2019★ 489 cited

Identification of strontium in the merger of two neutron stars

Darach Watson, Camilla J. Hansen, Jonatan Selsing +15

Half of all the elements in the universe heavier than iron were created by rapid neutron capture. The theory for this astrophysical `-process' was worked out six decades ago and…

astro-ph.HE2019★ 8 cited

Multiple Components in the Broadband -ray Emission of the Short GRB 160709A

Donggeun Tak, Sylvain Guiriec, Z. Lucas Uhm +3

GRB 160709A is one of the few bright short gamma-ray bursts detected by both the Gamma-ray Burst Monitor and the Large Area Telescope on board the - $Te…

astro-ph.HE2019★ 21 cited

LOFAR early-time search for coherent radio emission from GRB 180706A

A. Rowlinson, K. Gourdji, K. van der Meulen +12

The nature of the central engines of gamma-ray bursts (GRBs) and the composition of their relativistic jets are still under debate. If the jets are Poynting flux dominated rather t…

astro-ph.HE2019★ 74 cited

The Fast Radio Burst Luminosity Function and Death Line in the Low-Twist Magnetar Model

Zorawar Wadiasingh, Paz Beniamini, Andrey Timokhin +4

We explore the burst energy distribution of fast radio bursts (FRBs) in the low-twist magnetar model of Wadiasingh and Timokhin (2019). Motivated by the power-law fluence distribut…

astro-ph.HE2019★ 31 cited

The 2018 outburst of BHXB H1743-322 as seen with MeerKAT

D. R. A. Williams, S. E. Motta, R. Fender +11

In recent years, the black hole candidate X-ray binary system H1743-322 has undergone outbursts and it has been observed with X-ray and radio telescopes. We present 1.3 GHz MeerKAT…

astro-ph.HE2019★ 17 cited

T CrB: Radio Observations During the 2016--2017 "Super-Active" State

Justin D. Linford, Laura Chomiuk, Jennifer L Sokoloski +6

We obtained radio observations of the symbiotic binary and known recurrent nova T Coronae Borealis following a period of increased activity in the optical and X-ray bands. A compar…

astro-ph.HE2019★ 75 cited

The Berkeley sample of Type II supernovae: BVRI light curves and spectroscopy of 55 SNe II

T. de Jaeger, W. Zheng, B. E. Stahl +58

In this work, BV RI light curves of 55 Type II supernovae (SNe II) from the Lick Observatory Supernova Search program obtained with the Katzman Automatic Imaging Telescope and the…

astro-ph.HE2019★ 23 cited

Progenitors and Explosion Properties of Supernova Remnants Hosting Central Compact Objects: I. RCW 103 Associated with the Peculiar Source 1E 161348-5055

Chelsea Braun, Samar Safi-Harb, Chris Fryer

We present a Chandra and XMM-Newton imaging and spectroscopic study of the supernova remnant (SNR) RCW 103 (G332.4-00.4) containing the Central Compact Object 1E 161348-5055. The h…

astro-ph.HE2019★ 69 cited

Fermi and Swift Observations of GRB 190114C: Tracing the Evolution of High-Energy Emission from Prompt to Afterglow

M. Ajello, M. Arimoto, M. Axelsson +147

We report on the observations of gamma-ray burst (GRB) 190114C by the Fermi Gamma-ray Space Telescope and the Neil Gehrels Swift Observatory. The early-time observations reveal mul…

astro-ph.HE2019★ 3 cited

Discovery and Identification of MAXI J1621-501 as a Type I X-ray Burster with a Super-Orbital Period

Nicholas M. Gorgone, Chryssa Kouveliotou, Hitoshi Negoro +26

MAXI J1621-501 is the first Swift/XRT Deep Galactic Plane Survey transient that was followed up with a multitude of space missions (NuSTAR, Swift, Chandra, NICER, INTEGRAL, and MAX…

astro-ph.HE2019★ 61 cited

Synchrotron self-Compton as a likely mechanism of photons beyond the synchrotron limit in GRB 190114C

N. Fraija, R. Barniol Duran, S. Dichiara +1

GRB 190114C, a long and luminous burst, was detected by several satellites and ground-based telescopes from radio wavelengths to GeV gamma-rays. In the GeV gamma-rays, the Fermi LA…

astro-ph.HE2019★ 91 cited

X-ray Plateaus in Gamma Ray Bursts' light-curves from jets viewed slightly off-axis

Paz Beniamini, Raphael Duque, Frederic Daigne +1

Using multiple observational arguments, recent work has shown that cosmological GRBs are typically viewed at angles within, or close to the cores of their relativistic jets. One of…

astro-ph.HE2019★ 5 cited

The Case for a High-Redshift Origin of GRB100205A

A. A. Chrimes, A. J. Levan, E. R. Stanway +15

The number of long gamma-ray bursts (GRBs) known to have occurred in the distant Universe (z greater than 5) is small (approx 15), however these events provide a powerful way of pr…

astro-ph.HE2019★ 255 cited

A decade of Gamma-Ray Bursts observed by -LAT: The 2 GRB catalog

M. Axelsson, E. Bissaldi, N. Omodei +1

The Large Area Telescope (LAT) aboard the spacecraft routinely observes high-energy emission from gamma-ray bursts (GRBs). Here we present the second catalog of LAT-detecte…

astro-ph.HE2019★ 36 cited

Impact of Pulsar and Fallback Sources on Multifrequency Kilonova Models

Ryan T. Wollaeger, Chris L. Fryer, Christopher J. Fontes +6

We explore the impact of pulsar electromagnetic dipole and fallback accretion emission on the luminosity of a suite of kilonova models. The pulsar models are varied over pulsar mag…

astro-ph.HE2019★ 12 cited

Evolution of the extended X-ray emission from the PSR B1259-63/LS 2883 binary in the 2014-2017 binary cycle

Jeremy Hare, Oleg Kargaltsev, George G. Pavlov +1

We have performed a series of Chandra X-ray Observatory observations of the gamma-ray binary LS 2883, which is comprised of a young pulsar (PSR B1259-63) orbiting a massive Be star…

astro-ph.HE2019★ 364 cited

The Fourth Catalog of Active Galactic Nuclei Detected by the Fermi Large Area Telescope

LAT collaboration

The fourth catalog of active galactic nuclei (AGNs) detected by the Fermi Gamma-ray Space Telescope Large Area Telescope (4LAC) between 2008 August 4 and 2016 August 2 contains 286…

astro-ph.HE2019★ 161 cited

Short GRB 160821B: a reverse shock, a refreshed shock, and a well-sampled kilonova

G. P. Lamb, N. R. Tanvir, A. J. Levan +31

We report our identification of the optical afterglow and host galaxy of the short-duration gamma-ray burst GRB 160821B. The spectroscopic redshift of the host is , making…

astro-ph.HE2019★ 52 cited

Composition Effects on Kilonova Spectra and Light Curves: I

Wesley Even, Oleg Korobkin, Christopher L. Fryer +7

The merger of neutron star binaries is believed to eject a wide range of heavy elements into the universe. By observing the emission from this ejecta, scientists can probe the ejec…

astro-ph.HE2019★ 28 cited

Understanding the Engines and Progenitors of Gamma-Ray Bursts

Chris L. Fryer, Nicole Lloyd-Ronning, Ryan Wollaeger +5

Our understanding of the engines and progenitors of gamma-ray bursts has expanded through the ages as a broader set of diagnostics has allowed us to test our understanding of these…