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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 VLA-COSMOS 3 GHz Large Project: Continuum data and source catalog release
We present the VLA-COSMOS 3 GHz Large Project based on 384 hours of observations with the Karl G. Jansky Very Large Array (VLA) at 3 GHz (10 cm) toward the two square degree Cosmic Evolution Survey…
Illuminating gravitational waves: A concordant picture of photons from a neutron star merger
It is demonstrated that merging neutron stars are a long-sought production site forging heavy elements by r-process nucleosynthesis, which is dissimilar to classical short gamma-ray bursts with ultrarelativistic jets.
A fast radio burst associated with a Galactic magnetar.
The discovery of FRB 200428 implies that active magnetars such as SGR 1935+2154 can produce FRBs at extragalactic distances, and favours emission models that describe synchrotron masers or electromagnetic pulses powered by magnetar bursts and giant flares.
Confirmation of the Electron Cyclotron Maser Instability as the Dominant Source of Radio Emission from Very Low Mass Stars and Brown Dwarfs
We report on radio observations of the M8.5 dwarf LSR J1835+3259 and the L3.5 dwarf 2MASS J00361617+1821104, which provide the strongest evidence to date that the electron cyclotron maser instability…
A fast radio burst localized to a massive galaxy
Use of a specially built radio interferometer shows that a non-repeating fast radio burst is localized to a few-arcsecond region containing a single massive galaxy, and is perhaps derived from an old stellar population.
Multi-messenger Observations of a Binary Neutron Star Merger
- B. Abbott, R. Abbott, P. Woudt
- PhysicsProceedings of Multifrequency Behaviour of High…
- 26 October 2019
On 2017 August 17 a binary neutron star coalescence candidate (later designated GW170817) with merger time 12:41:04 UTC was observed through gravitational waves by the Advanced LIGO and Advanced…
Periodic Bursts of Coherent Radio Emission from an Ultracool Dwarf
We report the detection of periodic (p = 1.96 hr) bursts of extremely bright, 100% circularly polarized, coherent radio emission from the M9 dwarf TVLM 513-46546. Simultaneous photometric monitoring…
A radio counterpart to a neutron star merger
Radio observations constrain the energy and geometry of relativistic material ejected from a binary neutron star merger, and the detection of a counterpart radio source that appears 16 days after the event is reported, allowing us to diagnose the energetics and environment of the merger.
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.