The optical afterglow of the short gamma-ray burst associated with GW170817

  title={The optical afterglow of the short gamma-ray burst associated with GW170817},
  author={Joseph D. Lyman and Gavin P. Lamb and Andrew J. Levan and Ilya Mandel and Nial R. Tanvir and S. Kobayashi and Benjamin Gompertz and Jens Hjorth and Andrew S. Fruchter and Tuomas Kangas and D Steeghs and Iain A. Steele and Zach Cano and C. M. Copperwheat and P. A. Evans and J. P. U. Fynbo and C. Gall and Myungshin Im and Luca Izzo and P. Jakobsson and Bo Milvang-Jensen and P. T. O’Brien and Julian P. Osborne and Eliana Palazzi and Daniel A. Perley and Elena Pian and Stephan Rosswog and Antonia Rowlinson and Steve Schulze and Elizabeth R. Stanway and P. Sutton and Christina C. Th{\"o}ne and Antonio de Ugarte Postigo and Darach Watson and Klaas Wiersema and Ralph Wijers},
  journal={Nature Astronomy},
The binary neutron star merger GW170817 was the first multi-messenger event observed in both gravitational and electromagnetic waves1,2. The electromagnetic signal began approximately two seconds post-merger with a weak, short burst of gamma rays3, which was followed over the next hours and days by the ultraviolet, optical and near-infrared emission from a radioactively powered kilonova4–11. Later, non-thermal rising X-ray and radio emission was observed12,13. The low luminosity of the gamma… 

Late afterglows of GW/GRB 170817A

The gamma-ray burst that followed the first detection of gravitational waves from the merger of a Binary Neutron Stars (BNS) and its low energy counterparts were in many respects unusual. In a

From γ to Radio: The Electromagnetic Counterpart of GW170817

The gravitational waves from the first binary neutron star merger, GW170817, were accompanied by a multiwavelength electromagnetic counterpart, from γ-rays to radio. The accompanying γ-rays seem at

Late Afterglow Emission Statistics: A Clear Link between GW170817 and Bright Short Gamma-Ray Bursts

GW170817, the first neutron star merger event detected by Advanced LIGO/Virgo detectors, was associated with the underluminous short-duration GRB 170817A. In this Letter we compare the forward shock

Multiwavelength studies of gravitational wave sources: Physics and phenomenology

  • N. Tanvir
  • Physics
    Astronomische Nachrichten
  • 2019
The discovery of binary neutron star merger GW170817 from its gravitational wave signature, together with its accompanying electromagnetic emission spanning gamma-ray to radio, marked the birth of

Electromagnetic counterparts to the gravitational wave event GW170817

The gravitational wave (GW) signal from a binary neutron star (NS) merger wasdetected by the LIGO/virgo detectors on August 17th 2017 for the first time.A short gamma-ray burst (GRB) and a kilonova

The evolution of the X-ray afterglow emission of GW 170817 / GRB 170817A in XMM-Newton observations

We report our observation of the short gamma-ray burst (GRB) GRB 170817A, associated to the binary neutron star merger gravitational wave (GW) event GW 170817, performed in the X-ray band with

Interpreting GRB170817A as a giant flare from a jet-less double neutron star merger

We show that the delay between GRB170817A and GW170817 is incompatible with de-beamed emission from an off-axis relativistic jet. The prompt emission and the subsequent radio and X-ray observations

Superluminal motion of a relativistic jet in the neutron-star merger GW170817

Radio observations using very long-baseline interferometry find that the compact radio source associated with GW170817 exhibits superluminal apparent motion between 75 days and 230 days after the merger event, which breaks the degeneracy between the choked- and successful-jet cocoon models.

The Optical Afterglow of GW170817 at One Year Post-merger

We present observations of the optical afterglow of GRB 170817A, made by the Hubble Space Telescope, between 2018 February and August, up to one year after the neutron star merger GW170817. The

A Strong Jet Signature in the Late-time Light Curve of GW170817

We present new 0.6–10 GHz observations of the binary neutron star merger GW170817 covering the period up to 300 days post-merger, taken with the upgraded Karl G. Jansky Very Large Array, the



Lessons from the Short GRB 170817A: The First Gravitational-wave Detection of a Binary Neutron Star Merger

The first, long-awaited, detection of a gravitational-wave (GW) signal from the merger of a binary neutron star (NS–NS) system was finally achieved (GW170817) and was also accompanied by an

Late Time Afterglow Observations Reveal a Collimated Relativistic Jet in the Ejecta of the Binary Neutron Star Merger GW170817.

It is shown that structured jets with a relativistic, energetic core surrounded by slower and less energetic wings produce afterglow emission that brightens characteristically with time, as recently seen in the after glow of GW170817.

The X-ray counterpart to the gravitational-wave event GW170817

The detection of X-ray emission at a location coincident with the kilonova transient provides the missing observational link between short γ-ray bursts and gravitational waves from neutron-star mergers, and gives independent confirmation of the collimated nature of the γ,ray-burst emission.

A mildly relativistic wide-angle outflow in the neutron-star merger event GW170817

The cocoon model explains the radio light curve of GW170817, as well as the γ-ray and X-ray emission (and possibly also the ultraviolet and optical emission), and is the model that is most consistent with the observational data.

A cocoon shock breakout as the origin of the γ-ray emission in GW170817

The short Gamma-Ray Burst, GRB170817A, that followed the binary neutron star merger gravitational waves signal, GW170817, is not a usual sGRB. It is weaker by three orders of magnitude than the

GRB 170817A as a jet counterpart to gravitational wave triggerGW 170817

Fermi/GBM (Gamma-ray Burst Monitor) and INTEGRAL (the International Gamma-ray Astrophysics Laboratory) reported the detection of the γ-ray counterpart, GRB 170817A, to the LIGO (Light Interferometer

Off-axis emission of short GRB jets from double neutron star mergers and GRB 170817A

The short-duration ($\lesssim2\;$s) GRB 170817A in the nearby ($D=40\;$Mpc) elliptical galaxy NGC 4993 is the first electromagnetic counterpart of the first gravitational wave (GW) detection of a

Kilonova from post-merger ejecta as an optical and near-infrared counterpart of GW170817

Recent detection of gravitational waves from a neutron star (NS) merger event GW170817 and identification of an electromagnetic counterpart provide a unique opportunity to study the physical

Optical emission from a kilonova following a gravitational-wave-detected neutron-star merger

Optical to near-infrared observations of a transient coincident with the detection of the gravitational-wave signature of a binary neutron-star merger and with a low-luminosity short-duration γ-ray burst are reported.

Brightening X-Ray Emission from GW170817/GRB 170817A: Further Evidence for an Outflow

The origin of the X-ray emission from neutron star coalescence GW170817/GRB 170817A is a key diagnostic of the unsettled post-merger narrative, and different scenarios predict distinct evolution in