133 citations · 484 across the 21 of their papers we have counts for
21 papers
A Seyfert galaxy as a hidden counterpart to a neutrino-associated blazar
Emma Kun, Santiago del Palacio, Imre Bartos +5
The origin and production mechanisms of high-energy astrophysical neutrinos remain open questions in multimessenger astronomy. Previous studies have hinted at a possible linear cor…
A two-step strategy to identify episodic sources of gravitational waves and high energy neutrinos in starburst galaxies
M. L. Allen, P. L. Biermann, L. I. Caramete +12
Supermassive black hole mergers with spin-flips accelerate energetic particles through their precessing relativistic jets, producing high energy neutrinos and finally gravitational…
Possible correlation between unabsorbed hard X-rays and neutrinos in radio-loud and radio-quiet AGN
Emma Kun, Imre Bartos, Julia Becker Tjus +5
The first high-energy neutrino source identified by IceCube was a blazar -- an active galactic nucleus driving a relativistic jet towards Earth. Jets driven by accreting black hole…
Searching for temporary gamma-ray dark blazars associated with IceCube neutrinos
Emma Kun, Imre Bartos, Julia Becker Tjus +4
Tensions between the diffuse gamma-ray sky observed by the Fermi Large Area Telescope (LAT) and the diffuse high-energy neutrino sky detected by the IceCube South Pole Neutrino Obs…
Large-scale cosmic-ray anisotropies above 4 EeV measured by the Pierre Auger Observatory
The Pierre Auger Collaboration, A. Aab, P. Abreu +374
We present a detailed study of the large-scale anisotropies of cosmic rays with energies above 4 EeV measured using the Pierre Auger Observatory. For the energy bins [4,8] EeV and…
Cosmic rays: the spectrum and chemical composition from to eV
C. J. Todero Peixoto, Vitor de Souza, Peter L. Biermann
The production of energetic particles in the universe remains one of the great mysteries of modern science. The mechanisms of acceleration in astrophysical sources and the details…
Search for signatures of magnetically-induced alignment in the arrival directions measured by the Pierre Auger Observatory
The Pierre Auger Collaboration, P. Abreu, M. Aglietta +496
We present the results of an analysis of data recorded at the Pierre Auger Observatory in which we search for groups of directionally-aligned events (or `multiplets') which exhibit…
Photon and neutrino emission from active galactic nuclei
P. L. Biermann, J. K. Becker, L. I. Caramete +4
Supermassive black holes in the centers of galaxies are very common. They are known to rotate, accrete, spin down and eject highly relativistic jets; those jets pointed at us all s…
Active Galactic Nuclei with Starbursts: Sources for Ultra High Energy Cosmic Rays
P. L. Biermann, J. K. Becker, L. Caramete +5
Ultra high energy cosmic ray events presently show a spectrum, which we interpret here as galactic cosmic rays due to a starburst in the radio galaxy Cen A pushed up in energy by t…
Radio emission of highly inclined cosmic ray air showers measured with LOPES
Jelena Petrovic LOPES collaboration
LOPES-10 (the first phase of LOPES, consisting of 10 antennas) detected a significant number of cosmic ray air showers with a zenith angle larger than 50, and many of the…
Degenerate sterile neutrino dark matter in the cores of galaxies
Faustin Munyaneza, Peter L. Biermann
We study the distribution of fermionic dark matter at the center of galaxies using NFW, Moore and isothermal density profiles and show that dark matter becomes degenerate for parti…
Fluctuations in the EAS radio signal derived with improved Monte Carlo simulations based on CORSIKA
Tim Huege
Cosmic ray air showers are known to emit pulsed radio emission which can be understood as coherent geosynchrotron radiation arising from the deflection of electron-positron pairs i…
Binary black holes and tori in AGN I. Ejection of stars and merging of the binary
Christian Zier, Peter L. Biermann
Most galaxies have central massive black holes (BH), and merge with others during their evolution, as strongly suggested by recent observations. Consequently a black hole binary (B…
The jet-disk symbiosis model for Gamma Ray Bursts: cosmic ray and neutrino background contribution
G. Pugliese, H. Falcke, Y. Wang +1
The relation between the cosmological evolution of the jet-disk symbiosis model for GRBs and the cosmic rays energy distribution is presented. We used two different Star Formation…
TeV Cherenkov Events as Bose-Einstein Gamma Condensations
M. Harwit, R. J. Protheroe, P. L. Biermann
The recent detection of gamma radiation from Mkn 501 at energies as high as 25 TeV suggests stringent upper bounds on the diffuse, far infrared, extragalactic radiation density. Th…
A jet-disk symbiosis model for Gamma Ray Bursts: SS 433 the next?
Giovanna Pugliese, Heino Falcke, Peter L. Biermann
We consider a jet-disk symbiosis model to explain Gamma Ray Bursts and their afterglows. It is proposed that GRBs develop in a pre-existing jet. We consider a binary system formed…
Non-thermal Origin of the EUV and HEX Excess Emission of the Coma Cluster - the Nature of the Energetic Electrons
Torsten A. Ensslin, Richard Lieu, Peter L. Biermann
The excess in extreme-ultraviolet (EUV) radiation and high energy X-rays (HEX) of Coma may be modeled by power law spectra. Their origin could be inverse Compton (IC) emission by r…
Cosmic Magnetic Fields in Large Scale Filaments and Sheets
Dongsu Ryu, Hyesung Kang, Peter L. Biermann
We consider the possibility that cosmic magnetic field, instead of being uniformly distributed, is strongly correlated with the large scale structure of the universe. Then, the obs…
Black Hole Energy Release to the Gaseous Universe
Torsten A. Ensslin, Yiping Wang, Biman B. Nath +1
We estimate the energy release of black hole formation to the intra-cluster medium of the Coma cluster and find that this is comparable to the present day energy content. Therefore…
Photon-photon absorption above a molecular cloud torus in blazars
R. J. Protheroe, P. L. Biermann
Gamma rays have been observed from two blazars at TeV energies. One of these, Markarian 421, has been observed also at GeV energies and has roughly equal luminosity per decade at G…
Extragalactic ultra high energy cosmic rays, II. Comparison with experimental data
Joerg P. Rachen, Todor Stanev, Peter L. Biermann
We compare the expected contribution of FR-II hot spots to the ultra-high energy cosmic ray spectrum (Rachen & Biermann 1993, A&A in press, BB paper astro-ph/9301010) to improved e…