Showing 2017 · astro-ph.HEShow all

51 papers · 2 filters

astro-ph.HE2017★ 33 cited

A Search for Neutrino Emission from Fast Radio Bursts with Six Years of IceCube Data

IceCube Collaboration, M. G. Aartsen, M. Ackermann +320

We present a search for coincidence between IceCube TeV neutrinos and fast radio bursts (FRBs). During the search period from 2010 May 31 to 2016 May 12, a total of 29 FRBs with 13…

astro-ph.HE2017★ 131 cited

X-ray/UV/optical variability of NGC 4593 with Swift: Reprocessing of X-rays by an extended reprocessor

I M McHardy, S D Connolly, K Horne E M Cackett +25

We report the results of intensive X-ray, UV and optical monitoring of the Seyfert 1 galaxy NGC 4593 with Swift. There is no intrinsic flux-related spectral change in the the varia…

astro-ph.HE2017★ 54 cited

Confronting Models of Massive Star Evolution and Explosions with Remnant Mass Measurements

Carolyn A. Raithel, Tuguldur Sukhbold, Feryal Özel

The mass distribution of compact objects provides a fossil record that can be studied to uncover information on the late stages of massive star evolution, the supernova explosion m…

astro-ph.HE2017★ 41 cited

Studying the Ultraviolet Spectrum of the First Spectroscopically Confirmed Supernova at redshift two

M. Smith, M. Sullivan, R. C. Nichol +87

We present observations of DES16C2nm, the first spectroscopically confirmed hydrogen-free superluminous supernova (SLSN-I) at redshift z~2. DES16C2nm was discovered by the Dark Ene…

astro-ph.HE2017

The Rise and Peak of the Luminous Type IIn SN 2017hcc/ATLAS17lsn from ASAS-SN and Swift UVOT Data

J. L. Prieto, Ping Chen, Subo Dong +7

We present observations of the rise and peak of the Type IIn supernova SN 2017hcc/ATLAS17lsn obtained by the All-Sky Automated Survey for Supernovae (ASAS-SN) and Swift UVOT. The l…

astro-ph.HE2017★ 43 cited

Measuring the Local Diffusion Coefficient with H.E.S.S. Observations of Very High-Energy Electrons

Dan Hooper, Tim Linden

The HAWC Collaboration has recently reported the detection of bright and spatially extended multi-TeV gamma-ray emission from Geminga, Monogem, and a handful of other nearby, middl…

astro-ph.HE2017★ 72 cited

Evidence for Dynamically Driven Formation of the GW170817 Neutron Star Binary in NGC 4993

A. Palmese, W. Hartley, F. Tarsitano +89

We present a study of NGC 4993, the host galaxy of the GW170817 gravitational wave event, the GRB170817A short gamma-ray burst (sGRB) and the AT2017gfo kilonova. We use Dark Energy…

astro-ph.HE2017★ 193 cited

Search for High-energy Neutrinos from Binary Neutron Star Merger GW170817 with ANTARES, IceCube, and the Pierre Auger Observatory

A. Albert, M. Andre, M. Anghinolfi +1931

The Advanced LIGO and Advanced Virgo observatories recently discovered gravitational waves from a binary neutron star inspiral. A short gamma-ray burst (GRB) that followed the merg…

astro-ph.HE2017★ 39 cited

Deflections of UHECRs in the Galactic magnetic field

Glennys R. Farrar, Michael S. Sutherland

We report results of the first comprehensive, high resolution study of the deflections of UHECRs using a realistic model of the Galactic magnetic field and extending to sufficientl…

astro-ph.HE2017★ 148 cited

Energetic eruptions leading to a peculiar hydrogen-rich explosion of a massive star

Iair Arcavi, D. Andrew Howell, Daniel Kasen +50

Every supernova hitherto observed has been considered to be the terminal explosion of a star. Moreover, all supernovae with absorption lines in their spectra show those lines decre…

astro-ph.HE2017★ 21 cited

Modelling type IIP/IIL supernovae interacting with recent episodic mass ejections from their presupernova stars with MESA & SNEC

Sanskriti Das, Alak Ray

We show how dense compact discrete shells of circumstellar gas immediately outside the red supergiants affect the optical light curves of type II-P/II-L SNe taking the example of S…

astro-ph.HE2017★ 24 cited

2FGL J0846.0+2820: A new neutron star binary with a giant secondary and variable -ray emission

Samuel J. Swihart, Jay Strader, Tyrel J. Johnson +11

We present optical photometric and spectroscopic observations of the likely stellar counterpart to the unassociated \emph{Fermi}-Large Area Telescope (LAT) -ray source 2FGL J084…

astro-ph.HE2017★ 120 cited

Extracting the Energy-Dependent Neutrino-Nucleon Cross Section Above 10 TeV Using IceCube Showers

Mauricio Bustamante, Amy Connolly

Neutrinos are key to probing the deep structure of matter and the high-energy Universe. Yet, until recently, their interactions had only been measured at laboratory energies up to…

astro-ph.HE2017★ 48 cited

The Radio Synchrotron Background: Conference Summary and Report

J. Singal, J. Haider, M. Ajello +20

We summarize the radio synchrotron background workshop that took place July 19-21, 2017 at the University of Richmond. This first scientific meeting dedicated to the topic was conv…

astro-ph.HE2017★ 18 cited

The Highly Luminous Type Ibn Supernova ASASSN-14ms

P. J. Vallely, J. L. Prieto, K. Z. Stanek +16

We present photometric and spectroscopic follow-up observations of the highly luminous Type Ibn supernova ASASSN-14ms, which was discovered on UT 2014-12-26.61 at .…

astro-ph.HE2017★ 1k cited

The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/VIRGO GW170817. II. UV, Optical, and Near-IR Light Curves and Comparison to Kilonova Models

P. S. Cowperthwaite, E. Berger, V. A. Villar +141

We present UV, optical, and NIR photometry of the first electromagnetic counterpart to a gravitational wave source from Advanced LIGO/Virgo, the binary neutron star merger GW170817…

astro-ph.HE2017★ 584 cited

The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817. I. Dark Energy Camera Discovery of the Optical Counterpart

M. Soares-Santos, D. E. Holz, J. Annis +142

We present the Dark Energy Camera (DECam) discovery of the optical counterpart of the first binary neutron star merger detected through gravitational wave emission, GW170817. Our o…

astro-ph.HE2017★ 251 cited

High Resolution Study of Presupernova Compactness

Tuguldur Sukhbold, Stan Woosley, Alexander Heger

The density structure surrounding the iron core of a massive star when it dies is known to have a major effect on whether or not the star explodes. Here we repeat previous surveys…

astro-ph.HE2017★ 409 cited

Observation of a Large-scale Anisotropy in the Arrival Directions of Cosmic Rays above eV

The Pierre Auger Collaboration, A. Aab, P. Abreu +404

Cosmic rays are atomic nuclei arriving from outer space that reach the highest energies observed in nature. Clues to their origin come from studying the distribution of their arriv…

astro-ph.HE2017★ 86 cited

A Nova Outburst Powered by Shocks

Kwan-Lok Li, Brian D. Metzger, Laura Chomiuk +13

Classical novae are runaway thermonuclear burning events on the surfaces of accreting white dwarfs in close binary star systems, sometimes appearing as new naked-eye sources in the…

astro-ph.HE2017★ 55 cited

Dynamics of Quadruple Systems Composed of Two Binaries: Stars, White Dwarfs, and Implications for Ia Supernovae

Xiao Fang, Todd A. Thompson, Christopher M. Hirata

[Abridged]We investigate the long-term secular dynamics and Lidov-Kozai(LK) eccentricity oscillations of quadruple systems composed of two binaries at quadrupole and octupole order…

astro-ph.HE2017★ 37 cited

High-entropy ejections from magnetized proto-neutron star winds: implications for heavy element nucleosynthesis

Todd A. Thompson, Asif ud-Doula

Although initially thought to be promising for production of the r-process nuclei, standard models of neutrino-heated winds from proto-neutron stars (PNSs) do not reach the requisi…

astro-ph.HE2017★ 81 cited

Gaia17biu/SN 2017egm in NGC 3191: The closest hydrogen-poor superluminous supernova to date is in a "normal", massive, metal-rich spiral galaxy

Subhash Bose, Subo Dong, A. Pastorello +55

Hydrogen-poor superluminous supernovae (SLSNe-I) have been predominantly found in low-metallicity, star-forming dwarf galaxies. Here we identify Gaia17biu/SN 2017egm as an SLSN-I o…

astro-ph.HE2017★ 11 cited

An XMM-Newton Study of the Mixed-Morphology Supernova Remnant G346.6-0.2

Katie Auchettl, C-Y. Ng, B. T. T. Wong +2

We present an X-ray imaging and spectroscopic study of the molecular cloud interacting mixed-morphology (MM) supernova remnant (SNR) G346.6-0.2 using XMM-Newton. The X-ray spectrum…