output
19912026
most citedPlanck 2015 results. XIII. Cosmological parameters

10.6k citations

Showing 2018 · astro-ph.HEShow all

29 papers · 2 filters

astro-ph.HE2018★ 5 cited

Contribution of Cosmic Rays from Sources with a Monoenergetic Proton Spectrum to the Extragalactic Diffuse Gamma-Ray Emission

Anna Uryson

The extragalactic sources of ultra-high-energy (E > 4x10^19 eV) cosmic rays that make a small contribution to the flux of particles recorded by ground-based arrays are discussed. W…

astro-ph.HE2018★ 1 cited

Ultra-high energy cosmic rays from supermassive black holes: particle flux on the Earth and extragalactic diffuse emission

A. Uryson

Cosmic rays accelerated to ultra-high energies (E>4x10^19 eV) in electric fields in accretion discs around supermassive black holes are discussed. Particle injection spectra are as…

astro-ph.HE2018★ 40 cited

Close-up view of an ongoing merger between the NGC 4839 group and the Coma cluster - a post-merger scenario

N. Lyskova, E. Churazov, C. Zhang +5

We study a merger of the NGC 4839 group with the Coma cluster using X-ray observations from the XMM-Newton and Chandra telescopes. X-ray data show two prominent features: (i) a lon…

astro-ph.HE2018★ 26 cited

Gamma-Ray Emission from Molecular Clouds Generated by Penetrating Cosmic Rays

V. A. Dogiel, D. O. Chernyshov, A. V. Ivlev +3

We analyze the processes governing cosmic-ray (CR) penetration into molecular clouds and the resulting generation of gamma-ray emission. The density of CRs inside a cloud is deplet…

astro-ph.HE2018★ 3 cited

Prospects of detecting a large-scale anisotropy of ultra-high-energy cosmic rays from a nearby source with the K-EUSO orbital telescope

O. Kalashev, M. Pshirkov, M. Zotov

KLYPVE-EUSO (K-EUSO) is a planned orbital detector of ultra-high-energy cosmic rays (UHECRs), which is to be deployed on board the International Space Station. K-EUSO is expected t…

astro-ph.HE2018★ 16 cited

Deep XMM-Newton observations of the northern disc of M31. I. Source catalogue

M. Sasaki, F. Haberl, M. Henze +12

We carried out new observations of two fields in the northern ring of M31 with XMM-Newton with two exposures of 100 ks each and obtained a complete list of X-ray sources down to a…

astro-ph.HE2018★ 12 cited

The dynamics of twisted disc formed after the tidal disruption of a star by a rotating black hole

P. B. Ivanov, V. V. Zhuravlev, J. C. B. Papaloizou

We consider misaligned accretion discs formed after tidal disruption events occurring when a star encounters a supermassive rotating black hole. We use the linear theory of warped…

astro-ph.HE2018★ 108 cited

LOFAR discovery of a 23.5-second radio pulsar

C. M. Tan, C. G. Bassa, S. Cooper +16

We present the discovery of PSR J0250+5854, a radio pulsar with a spin period of 23.5 s. This is the slowest-spinning radio pulsar known. PSR J0250+5854 was discovered by the LOFAR…

astro-ph.HE2018★ 33 cited

Exploding neutron stars in close binaries

S. I. Blinnikov, I. D. Novikov, T. V. Perevodchikova +1

The discovery of GW signal from merging neutron stars by LIGO on 17th August 2017 was followed by a short GRB170817A discovered by FERMI and INTEGRAL 1.7 seconds after the loss of…

astro-ph.HE2018★ 7 cited

On X-ray emission of radio pulsars

Igor F. Malov, Maria A. Timirkeeva

The analysis of distributions of some parameters of radio pulsars emitting X-ray radiation was carried out. The majority of such pulsars has short spin periods with the average val…

astro-ph.HE2018★ 20 cited

Laboratory simulation of astrophysical jets within facilities of Plasma Focus type

Vyacheslav I. Krauz, Vasily S. Beskin, Evgeny P. Velikhov

A laboratory simulation of astrophysical processes is one of the intensively developed areas of plasma physics. A new series of experiments has been launched recently on the Plasma…

astro-ph.HE2018★ 27 cited

Multi-frequency study of the gamma-ray flaring BL Lac object PKS 2233-148 in 2009-2012

A. B. Pushkarev, M. S. Butuzova, Y. Y. Kovalev +1

We study the jet physics of the BL Lac object PKS 2233-148 making use of synergy of observational data sets in the radio and gamma-ray energy domains. The four-epoch multi-frequenc…

astro-ph.HE2018★ 33 cited

Detection of 25 new rotating radio transients at 111 MHz

Sergey A. Tyul'bashev, Vladislav S. Tyul'bashev, Valery M. Malofeev

Nearly all fast radio RRAT-type transients that are pulsars with rare pulses have been previously detected using decimetre wavelengths. We present here 34 transients detected at me…

astro-ph.HE2018★ 13 cited

Black hole spin from wobbling and rotation of the M87 jet and a sign of a magnetically arrested disc

Denis Nikolaevich Sob'yanin

New long-term Very Long Baseline Array observations of the well-known jet in the M87 radio galaxy at 43 GHz show that the jet experiences a sideways shift with an approximately 8-1…

astro-ph.HE2018★ 10 cited

Time-Variability of equivalent width of 6.4 keV line from the Arches Complex: reflected X-rays or charged particles?

D. O. Chernyshov, C. M. Ko, R. A. Krivonos +2

Molecular gas in Arches cloud located near the Arches cluster is one of the emitters of K- line of neutral iron and X-ray continuum in the Galactic center (GC). Similarly to the…

astro-ph.HE2018★ 24 cited

Lithium and Beryllium isotopes with the PAMELA experiment

W. Menn, E. A. Bogomolov, M. Simon +56

The cosmic-ray lithium and beryllium (Li, Li, Be, Be, Be) isotopic composition has been measured with the satellite-borne experiment PAMELA, which wa…

astro-ph.HE2018★ 36 cited

Exploring the connection between parsec-scale jet activity and broadband outbursts in 3C 279

B. Rani, S. G. Jorstad, A. P. Marscher +16

We use a combination of high-resolution very long baseline interferometry (VLBI) radio and multi-wavelength flux density and polarization observations to constrain the physics of t…

astro-ph.HE2018★ 94 cited

The Green Bank North Celestial Cap Pulsar Survey III: 45 New Pulsar Timing Solutions

Ryan S. Lynch, Joseph K. Swiggum, Vlad I. Kondratiev +37

We provide timing solutions for 45 radio pulsars discovered by the Robert C. Byrd Green Bank Telescope. These pulsars were found in the Green Bank North Celestial Cap pulsar survey…

astro-ph.HE2018★ 7 cited

Energy accumulation mechanism in pulsar magnetospheric plasma eigen-waves and formation of Giant Radio Pulses

George Machabeli, Nino Chkheidze, Igor Malov

In the present work we consider energy accumulation mechanism in relativistic electron-positron plasma in the magnetosphere of pulsars. Waves propagating almost across the magnetic…

astro-ph.HE2018

The Protons in Primary Cosmic Rays in the Energy Range 10^15-10^17 eV According to Data from the PAMIR Experiment

V. S. Puchkov, E. A. Kanevskaya, V. M. Maximenko +2

Adjusted data on the fraction of protons in the mass composition of primary cosmic rays (PCRs) in the energy range of 10^15-10^17 eV are presented. Adjustments are made according t…

astro-ph.HE2018

gamma-Families with Halos Observed by X-ray Emulsion Chamber in EAS and the Estimate of the p+He Fraction in Primary Cosmic Rays at E0 = 1-100 PeV

R. A. Mukhamedshin, V. S. Puchkov, S. E. Pyatovsky +1

The experimental gamma-families in which events called "halos" were detected using X-ray emulsion chambers (XRECs) of the PAMIR experiment are described. The halo nature is explain…

astro-ph.HE2018★ 2 cited

Constraints on the AGN flares as sources of ultra-high energy cosmic rays from the Fermi-LAT observations

B. A. Nizamov, M. S. Pshirkov

It is well known that if the most energetic cosmic rays ( eV) were protons then their acceleration sites should possess some extreme properties, including gigantic lumin…

astro-ph.HE2018★ 34 cited

Evidence of energy and charge sign dependence of the recovery time for the December 2006 Forbush event measured by the PAMELA experiment

R. Munini, M. Boezio, A. Bruno +55

New results on the short-term galactic cosmic ray (GCR) intensity variation (Forbush decrease) in December 2006 measured by the PAMELA instrument are presented. Forbush decreases a…

astro-ph.HE2018★ 18 cited

The Green Bank Northern Celestial Cap Pulsar Survey II: The Discovery and Timing of Ten Pulsars

A. M. Kawash, M. A. McLaughlin, D. L. Kaplan +41

We present timing solutions for ten pulsars discovered in 350 MHz searches with the Green Bank Telescope. Nine of these were discovered in the Green Bank Northern Celestial Cap sur…