Showing 2016 · astro-ph.HEShow all

30 papers · 2 filters

astro-ph.HE2016★ 32 cited

A targeted search for point sources of EeV photons with the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Aab, P. Abreu +397

Simultaneous measurements of air showers with the fluorescence and surface detectors of the Pierre Auger Observatory allow a sensitive search for EeV photon point sources. Several…

astro-ph.HE2016★ 11 cited

First limits on the very-high energy gamma-ray afterglow emission of a fast radio burst: H.E.S.S. observations of FRB 150418

H. E. S. S. Collaboration, :, H. Abdalla +265

Aims: Following the detection of the fast radio burst FRB150418 by the SUPERB project at the Parkes radio telescope, we aim to search for very-high energy gamma-ray afterglow emiss…

astro-ph.HE2016★ 55 cited

Statistical Study of Observed and Intrinsic Durations among BATSE and Swift/BAT GRBs

Hannachi Zitouni, Nidhal Guessoum, Walid Jamil Azzam +1

Studies of \textit{BATSE} bursts \citep{kouveliotou:93} have resulted in the widespread adoption of a two-group categorization: long bursts (those with durations seconds)…

astro-ph.HE2016★ 88 cited

The Structure of the Local Hot Bubble

W. Liu, M. Chiao, M. R. Collier +14

DXL (Diffuse X-rays from the Local Galaxy) is a sounding rocket mission designed to quantify and characterize the contribution of Solar Wind Charge eXchange (SWCX) to the Diffuse X…

astro-ph.HE2016★ 500 cited

Searching for Dark Matter Annihilation in Recently Discovered Milky Way Satellites with Fermi-LAT

The Fermi-LAT, DES Collaborations, A. Albert +70

We search for excess gamma-ray emission coincident with the positions of confirmed and candidate Milky Way satellite galaxies using 6 years of data from the Fermi Large Area Telesc…

astro-ph.HE2016★ 46 cited

A Search for Kilonovae in the Dark Energy Survey

Z. Doctor, R. Kessler, H. Y. Chen +68

The coalescence of a binary neutron star (BNS) pair is expected to produce gravitational waves (GW) and electromagnetic (EM) radiation, both of which may be detectable with current…

astro-ph.HE2016★ 76 cited

Search for Gravitational Waves Associated with Gamma-Ray Bursts During the First Advanced LIGO Observing Run and Implications for the Origin of GRB 150906B

LIGO Scientific Collaboration, Virgo Collaboration, IPN Collaboration +1002

We present the results of the search for gravitational waves (GWs) associated with -ray bursts detected during the first observing run of the Advanced Laser Interferometer Gravi…

astro-ph.HE2016★ 5 cited

Study of the very high energy gamma-ray spectrum from the Galactic Center and future prospects

Alexander V. Belikov, Emmanuel Moulin, Joseph Silk

Ground-based gamma ray observations of the Galactic Center region have revealed a high energy gamma ray source spatially coincident with the gravitational centroid of our Galaxy. T…

astro-ph.HE2016★ 11 cited

The Highest-Energy Cosmic Rays Cannot be Dominantly Protons from Steady Sources

Ke Fang, Kumiko Kotera

The bulk of observed ultrahigh energy cosmic rays could be light or heavier elements, and originate from an either steady or transient population of sources. This leaves us with fo…

astro-ph.HE2016★ 50 cited

Characterizing the gamma-ray long-term variability of PKS 2155-304 with H.E.S.S. and Fermi-LAT

H. E. S. S. Collaboration, H. Abdalla, A. Abramowski +244

Studying the temporal variability of BL Lac objects at the highest energies provides unique insights into the extreme physical processes occurring in relativistic jets and in the v…

astro-ph.HE2016★ 29 cited

Search for ultrarelativistic magnetic monopoles with the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Aab, P. Abreu +411

We present a search for ultra-relativistic magnetic monopoles with the Pierre Auger Observatory. Such particles, possibly a relic of phase transitions in the early universe, would…

astro-ph.HE2016★ 37 cited

Magnetically elevated accretion disks in active galactic nuclei: broad emission line regions and associated star formation

Mitchell C. Begelman, Joseph Silk

We propose that the accretion disks fueling active galactic nuclei are supported vertically against gravity by a strong toroidal (direction) magnetic field that develops natura…

astro-ph.HE2016★ 57 cited

H.E.S.S. limits on line-like dark matter signatures in the 100 GeV to 2 TeV energy range close to the Galactic Centre

H. E. S. S. Collaboration, H. Abdalla, A. Abramowski +246

A search for dark matter line-like signals was performed in the vicinity of the Galactic Centre by the H.E.S.S. experiment on observational data taken in 2014. An unbinned likeliho…

astro-ph.HE2016★ 36 cited

Dark Matter in lines: Galactic Center vs dwarf galaxies

Valentin Lefranc, Emmanuel Moulin, Paolo Panci +2

We provide CTA sensitivities to Dark Matter (DM) annihilation in -ray lines, from the observation of the Galactic Center (GC) as well as, for the first time, of dwarf Spheroidal…

astro-ph.HE2016★ 51 cited

Hyperaccreting black holes in galactic nuclei

Mitchell C. Begelman, Marta Volonteri

The rate at which matter flows into a galactic nucleus during early phases of galaxy evolution can sometimes exceed the Eddington limit of the growing central black hole by several…

astro-ph.HE2016★ 128 cited

Evidence for a mixed mass composition at the `ankle' in the cosmic-ray spectrum

The Pierre Auger Collaboration, A. Aab, P. Abreu +423

We report a first measurement for ultra-high energy cosmic rays of the correlation between the depth of shower maximum and the signal in the water Cherenkov stations of air-showers…

astro-ph.HE2016★ 34 cited

Identifying Ultrahigh-Energy Cosmic-Ray Accelerators with Future Ultrahigh-Energy Neutrino Detectors

Ke Fang, Kumiko Kotera, M. Coleman Miller +2

The detection of ultrahigh-energy (UHE) neutrino sources would contribute significantly to solving the decades-old mystery of the origin of the highest-energy cosmic rays. We inves…

astro-ph.HE2016★ 51 cited

Ultrahigh-energy neutrino follow-up of Gravitational Wave events GW150914 and GW151226 with the Pierre Auger Observatory

The Pierre Auger Collaboration, A. Aab, P. Abreu +410

On September 14, 2015 the Advanced LIGO detectors observed their first gravitational-wave (GW) transient GW150914. This was followed by a second GW event observed on December 26, 2…

astro-ph.HE2016★ 314 cited

Search for dark matter annihilations towards the inner Galactic halo from 10 years of observations with H.E.S.S

H. E. S. S. Collaboration, :, H. Abdallah +245

The inner region of the Milky Way halo harbors a large amount of dark matter (DM). Given its proximity, it is one of the most promising targets to look for DM. We report on a searc…

astro-ph.HE2016★ 196 cited

Upper limits on the rates of binary neutron star and neutron-star--black-hole mergers from Advanced LIGO's first observing run

The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +958

We report here the non-detection of gravitational waves from the merger of binary neutron star systems and neutron-star--black-hole systems during the first observing run of Advanc…

astro-ph.HE2016★ 15 cited

Outbursts in ultracompact X-ray binaries

J. -M. Hameury, J. -P. Lasota

Very faint X-ray binaries appear to be transient in many cases with peak luminosities much fainter than that of usual soft X-ray transients, but their nature still remains elusive.…

astro-ph.HE2016★ 19 cited

A corrugated termination shock in pulsar wind nebulae?

M. Lemoine

Successful phenomenological models of pulsar wind nebulae assume efficient dissipation of the Poynting flux of the magnetized electron-positron wind as well as efficient accelerati…

astro-ph.HE2016★ 37 cited

A synthetic model of the gravitational wave background from evolving binary compact objects

Irina Dvorkin, Jean-Philippe Uzan, Elisabeth Vangioni +1

Modeling the stochastic gravitational wave background from various astrophysical sources is a key objective in view of upcoming observations with ground- and space-based gravitatio…

astro-ph.HE2016★ 79 cited

Supplement: The Rate of Binary Black Hole Mergers Inferred from Advanced LIGO Observations Surrounding GW150914

The LIGO Scientific Collaboration, the Virgo Collaboration, B. P. Abbott +964

Supplemental information for a Letter reporting the rate of binary black hole (BBH) coalescences inferred from 16 days of coincident Advanced LIGO observations surrounding the tran…