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19922026
Showing 2019 · astro-ph.HEShow all

20 papers · 2 filters

astro-ph.HE2019★ 8 cited

Search for Astronomical Neutrinos from Blazar TXS0506+056 in Super-Kamiokande

K. Hagiwara, K. Abe, C. Bronner +169

We report a search for astronomical neutrinos in the energy region from several GeV to TeV in the direction of the blazar TXS0506+056 using the Super-Kamiokande detector following…

astro-ph.HE2019★ 14 cited

First M87 Event Horizon Telescope Results and the Role of ALMA

Ciriaco Goddi, Geoff Crew, Violette Impellizzeri +41

In April 2019, the Event Horizon Telescope (EHT) collaboration revealed the first image of the candidate super-massive black hole (SMBH) at the centre of the giant elliptical galax…

astro-ph.HE2019★ 38 cited

Sensitivity of Super-Kamiokande with Gadolinium to Low Energy Anti-neutrinos from Pre-supernova Emission

C. Simpson, K. Abe, C. Bronner +186

Supernova detection is a major objective of the Super-Kamiokande (SK) experiment. In the next stage of SK (SK-Gd), gadolinium (Gd) sulfate will be added to the detector, which will…

astro-ph.HE2019★ 1 cited

Intra-cluster GC-LMXB in the Fornax galaxy cluster

Gabriele Riccio, Maurizio Paolillo, Raffaele D'Abrusco +14

The formation of Low mass X-ray binaries (LMXB) is favored within dense stellar systems such as Globular Clusters (GCs). The connection between LMXB and Globular Clusters has been…

astro-ph.HE2019★ 2 cited

Mini-EUSO engineering model: tests in open-sky condition

F. Bisconti, D. Barghini, M. Battisti +45

Mini-EUSO is a UV telescope that will look downwards to the Earth's atmosphere onboard the International Space Station. With the design of the ultra-high energy cosmic ray fluoresc…

astro-ph.HE2019★ 3 cited

Analyzing the gamma-ray activity of neutrino emitter candidates: comparing TXS 0506+056 with other blazars

Antonio Marinelli, J. Rodrigo Sacahui, Ankur Sharma +1

On 22nd of September 2017 the IceCube collaboration sent an alert for an EHE (Extreme High Energy) event, corresponding to the reconstruction of a muonic neutrino (IC-170922A) with…

astro-ph.HE2019★ 64 cited

The mass-radius relation for neutron stars in gravity: a comparison between purely metric and torsion formulations

Pasquale Feola, Xisco Jimenez Forteza, Salvatore Capozziello +2

Within the framework of gravity, we study realistic models of neutron stars, using equations of state compatible with the LIGO constraints. i.e. APR4, MPA1, SLy, and…

astro-ph.HE2019★ 119 cited

An Optically Targeted Search for Gravitational Waves emitted by Core-Collapse Supernovae during the First and Second Observing Runs of Advanced LIGO and Advanced Virgo

The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1195

We present the results from a search for gravitational-wave transients associated with core-collapse supernovae observed within a source distance of approximately 20 Mpc during the…

astro-ph.HE2019★ 127 cited

Search for Eccentric Binary Black Hole Mergers with Advanced LIGO and Advanced Virgo during their First and Second Observing Runs

The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1183

When formed through dynamical interactions, stellar-mass binary black holes may retain eccentric orbits ( at 10 Hz) detectable by ground-based gravitational-wave detectors.…

astro-ph.HE2019★ 42 cited

Search for gravitational-wave signals associated with gamma-ray bursts during the second observing run of Advanced LIGO and Advanced Virgo

B. P. Abbott, R. Abbott, T. D. Abbott +1196

We present the results of targeted searches for gravitational-wave transients associated with gamma-ray bursts during the second observing run of Advanced LIGO and Advanced Virgo,…

astro-ph.HE2019★ 54 cited

Limits on point-like sources of ultra-high-energy neutrinos with the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Aab, P. Abreu +389

With the Surface Detector array (SD) of the Pierre Auger Observatory we can detect neutrinos with energy between eV and eV from point-like sources across the…

astro-ph.HE2019★ 42 cited

WATCAT: a tale of wide-angle tailed radio galaxies

V. Missaglia, F. Massaro, A. Capetti +4

We present a catalog of 47 wide-angle tailed radio galaxies (WATs), the WATCAT; these galaxies were selected by combining observations from the National Radio Astronomy Observatory…

astro-ph.HE2019★ 7 cited

A Search for Cosmic Neutrino and Gamma-Ray Emitting Transients in 7.3 Years of ANTARES and Fermi LAT Data

H. A. Ayala Solares, D. F. Cowen, J. J. DeLaunay +140

We analyze 7.3 years of ANTARES high-energy neutrino and Fermi LAT γ-ray data in search of cosmic neutrino + γ-ray (ν+γ) transient sources or source populations. Our analysis has t…

astro-ph.HE2019★ 343 cited

The Event Horizon General Relativistic Magnetohydrodynamic Code Comparison Project

Oliver Porth, Koushik Chatterjee, Ramesh Narayan +25

Recent developments in compact object astrophysics, especially the discovery of merging neutron stars by LIGO, the imaging of the black hole in M87 by the Event Horizon Telescope (…

astro-ph.HE2019★ 149 cited

All-sky search for continuous gravitational waves from isolated neutron stars using Advanced LIGO O2 data

The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1130

We present results of an all-sky search for continuous gravitational waves (CWs), which can be produced by fast-spinning neutron stars with an asymmetry around their rotation axis,…

astro-ph.HE2019★ 8 cited

ANTARES neutrino search for time and space correlations with IceCube high-energy neutrino events

ANTARES Collaboration, A. Albert, M. André +133

In the past years, the IceCube Collaboration has reported in several analyses the observation of astrophysical high-energy neutrino events. Despite a compelling evidence for the fi…

astro-ph.HE2019★ 56 cited

Search for transient gravitational wave signals associated with magnetar bursts during Advanced LIGO's second observing run

The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1129

We present the results of a search for short and intermediate-duration gravitational-wave signals from four magnetar bursts in Advanced LIGO's second observing run. We find no evid…

astro-ph.HE2019★ 113 cited

Searches for Gravitational Waves from Known Pulsars at Two Harmonics in 2015-2017 LIGO Data

The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1149

We present a search for gravitational waves from 221 pulsars with rotation frequencies Hz. We use advanced LIGO data from its first and second observing runs spanning…

astro-ph.HE2019★ 10 cited

Search for gamma-ray emission from the Sun during solar minimum with the ARGO-YBJ experiment

B. Bartoli, P. Bernardini, X. J. Bi +70

The hadronic interaction of cosmic rays with solar atmosphere can produce high energy gamma rays. The gamma-ray luminosity is correlated both with the flux of primary cosmic rays a…

astro-ph.HE2019★ 113 cited

Low-Latency Gravitational Wave Alerts for Multi-Messenger Astronomy During the Second Advanced LIGO and Virgo Observing Run

The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +1135

Advanced LIGO's second observing run (O2), conducted from November 30, 2016 to August 25, 2017, combined with Advanced Virgo's first observations in August 2017 witnessed the birth…