output
19922026
most citedGaia Data Release 2. Summary of the contents and survey properties

8.6k citations

Showing 2018 · astro-ph.HEShow all

20 papers · 2 filters

astro-ph.HE2018★ 144 cited

Investigating the properties of stripped-envelope supernovae, what are the implications for their progenitors?

S. J. Prentice, C. Ashall, P. A. James +41

We present observations and analysis of 18 stripped-envelope supernovae observed during 2013 -- 2018. This sample consists of 5 H/He-rich SNe, 6 H-poor/He-rich SNe, 3 narrow lined…

astro-ph.HE2018★ 46 cited

Observations of SN 2017ein Reveal Shock Breakout Emission and A Massive Progenitor Star for a Type Ic Supernova

Danfeng Xiang, Xiaofeng Wang, Jun Mo +23

We present optical and ultraviolet observations of nearby type Ic supernova SN 2017ein as well as detailed analysis of its progenitor properties from both the early-time observatio…

astro-ph.HE2018★ 18 cited

Blazars in the LOFAR Two-Metre Sky Survey First Data Release

S. Mooney, J. Quinn, J. R. Callingham +13

Historically, the blazar population has been poorly understood at low frequencies because survey sensitivity and angular resolution limitations have made it difficult to identify m…

astro-ph.HE2018★ 71 cited

Periastron Observations of TeV Gamma-Ray Emission from a Binary System with a 50-year Period

The VERITAS Collaboration, A. U. Abeysekara, W. Benbow +212

We report on observations of the pulsar / Be star binary system PSR J2032+4127 / MT91 213 in the energy range between 100 GeV and 20 TeV with the VERITAS and MAGIC imaging atmosphe…

astro-ph.HE2018★ 166 cited

The delay of shock breakout due to circumstellar material seen in most Type II Supernovae

F. Förster, T. J. Moriya, J. C. Maureira +35

Type II supernovae (SNe) originate from the explosion of hydrogen-rich supergiant massive stars. Their first electromagnetic signature is the shock breakout, a short-lived phenomen…

astro-ph.HE2018★ 39 cited

VERITAS and Fermi-LAT observations of new HAWC sources

VERITAS Collaboration, A. U. Abeysekara, A. Archer +280

The HAWC (High Altitude Water Cherenkov) collaboration recently published their 2HWC catalog, listing 39 very high energy (VHE; >100~GeV) gamma-ray sources based on 507 days of obs…

astro-ph.HE2018★ 60 cited

Measurement of Cosmic-ray Electrons at TeV Energies by VERITAS

VERITAS Collaboration, A. Archer, W. Benbow +58

Cosmic-ray electrons and positrons (CREs) at GeV-TeV energies are a unique probe of our local Galactic neighborhood. CREs lose energy rapidly via synchrotron radiation and inverse-…

astro-ph.HE2018★ 84 cited

The extreme HBL behaviour of Markarian 501 during 2012

M. L. Ahnen, S. Ansoldi, L. A. Antonelli +276

A multiwavelength campaign was organized to take place between March and July of 2012. Excellent temporal coverage was obtained with more than 25 instruments, including the MAGIC,…

astro-ph.HE2018★ 8 cited

Forecasting Gamma-Ray Bursts using Gravitational Waves

Sarp Akcay

We explore the intriguing possibility of employing future ground-based gravitational-wave interferometers to detect the inspiral of binary neutron stars sufficiently early to alert…

astro-ph.HE2018★ 17 cited

AT 2017be - a new member of the class of Intermediate-Luminosity Red Transients

Y-Z. Cai, A. Pastorello, M. Fraser +20

We report the results of our spectrophotometric monitoring campaign for AT~2017be in NGC~2537. Its lightcurve reveals a fast rise to an optical maximum, followed by a plateau lasti…

astro-ph.HE2018★ 20 cited

Measurement of the Iron Spectrum in Cosmic Rays by VERITAS

The VERITAS collaboration, A. Archer, W. Benbow +55

We present a new measurement of the energy spectrum of iron nuclei in cosmic rays from 20 to 500 TeV. The measurement makes use of a template-based analysis method, which, for the…

astro-ph.HE2018★ 43 cited

VERITAS observations of the BL Lac object TXS 0506+056

A. U. Abeysekara, A. Archer, W. Benbow +57

On 2017 September 22, the IceCube Neutrino Observatory reported the detection of the high-energy neutrino event \icnu, of potential astrophysical origin. It was soon determined tha…

astro-ph.HE2018★ 19 cited

HESS J1943+213: An Extreme Blazar Shining Through The Galactic Plane

The VERITAS Collaboration, A. Archer, W. Benbow +60

HESS J1943+213 is a very-high-energy (VHE; 100 GeV) -ray source in the direction of the Galactic Plane. Studies exploring the classification of the source are converging towa…

astro-ph.HE2018★ 50 cited

A nearby superluminous supernova with a long pre-maximum 'plateau' and strong CII features

J. P. Anderson, P. J. Pessi, L. Dessart +63

Super-luminous supernovae (SLSNe) are rare events defined as being significantly more luminous than normal terminal stellar explosions. The source of the extra powering needed to a…

astro-ph.HE2018★ 7 cited

X-shooter and ALMA spectroscopy of GRB 161023A - A study of metals and molecules in the line of sight towards a luminous GRB

A. de Ugarte Postigo, C. C. Thöne, J. Bolmer +45

Long gamma-ray bursts are produced during the dramatic deaths of massive stars with very short lifetimes, meaning that they explode close to the birth place of their progenitors. D…

astro-ph.HE2018★ 60 cited

A Very High Energy -Ray Survey towards the Cygnus Region of the Galaxy

The VERITAS Collaboration, A. U. Abeysekara, A. Archer +68

We present results from deep observations towards the Cygnus region using 300 hours of very-high-energy (VHE) -ray data taken with the VERITAS Cherenkov telescope array and over…

astro-ph.HE2018

The lowest metallicity type II supernova from the highest mass red-supergiant progenitor

J. P. Anderson, L. Dessart, C. P. Gutiérrez +29

Red supergiants have been confirmed as the progenitor stars of the majority of hydrogen-rich type II supernovae. However, while such stars are observed with masses >25M, de…

astro-ph.HE2018★ 9 cited

A strong limit on the very-high-energy emission from GRB 150323A

A. U. Abeysekara, A. Archer, W. Benbow +63

On 2015 March 23, VERITAS responded to a -BAT detection of a gamma-ray burst, with observations beginning 270 seconds after the onset of BAT emission, and only 135 seconds a…

astro-ph.HE2018★ 42 cited

Multiwavelength observations of the blazar BL Lacertae: a new fast TeV gamma-ray flare

A. U. Abeysekara, W. Benbow, R. Bird +74

Combined with very-long-baseline interferometry measurements, the observations of fast TeV gamma-ray flares probe the structure and emission mechanism of blazar jets. However, only…

astro-ph.HE2018★ 45 cited

On the interpretation of the Fermi GBM transient observed in coincidence with LIGO Gravitational Wave Event GW150914

V. Connaughton, E. Burns, A. Goldstein +25

The weak transient detected by the Fermi Gamma-ray Burst Monitor (GBM) 0.4 s after GW150914 has generated much speculation regarding its possible association with the black-hole bi…