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ǂThe ǂdiversity of strongly interacting Type IIn supernovae

I. Salmaso, E. Cappellaro, L. Tartaglia, J. P. Anderson, S. Benetti, Mateusz Bronikowski, Y.-Z. Cai, P. Charalampopoulos, W. T. Chen, E. Concepcion, T. Petrushevska

Izvirni znanstveni članek

Oznake: astronomy;neutrinos;supernovae;

Context. At late stages, massive stars experience strong mass-loss rates, losing their external layers and thus producing a dense H-rich circumstellar medium (CSM). After the explosion of a massive star, the collision and continued interaction of the supernova (SN) ejecta with the CSM power the SN l ...

Leto: 2025 Vir: Repozitorij Univerze v Novi Gorici (RUNG)

On-orbit performance of the top and bottom counting detectors for the ISS-CREAM experiment on the international space station

S. C. Kang, Y. Amare, T. Anderson, D. Angelaszek, N. Anthony, K. Cheryian, G. H. Choi, M. Copley, Stephane Coutu, J. P. Lundquist

Izvirni znanstveni članek

Oznake: ISS-CREAM;cosmic rays;TCD/BCD;CREAM;

The Cosmic Ray Energetics And Mass (CREAM) instrument on the International Space Station (ISS) is an experiment to study origin, propagation, acceleration and elemental composition of cosmic rays. The Top Counting Detector (TCD) and Bottom Counting Detector (BCD) are parts of the detector suite of t ...

Leto: 2019 Vir: Repozitorij Univerze v Novi Gorici (RUNG)

Energy spectrum of ultra-high energy cosmic rays observed with the Telescope Array using a hybrid technique

T. Abu-Zayyad, A. Aida, M. Allen, R. Anderson, R. Azuma, E. Barcikowski, J. W. Belz, D. R. Bergman, S. A. Blake, J. P. Lundquist

Izvirni znanstveni članek

Oznake: ultra-high-energy photons;telescope array;hybrid spectrum;

We measure the spectrum of cosmic rays with energies greater than eV with the fluorescence detectors (FDs) and the surface detectors (SDs) of the Telescope Array Experiment using the data taken in our first 2.3-year observation from May 27, 2008 to September 7, 2010. A hybrid air shower reconstruct ...

Leto: 2015 Vir: Repozitorij Univerze v Novi Gorici (RUNG)

Correlations of the arrival directions of ultra-high energy cosmic rays with extragalactic objects as observed by the Telescope Array experiment

T. Abu-Zayyad, R. Aida, M. Allen, R. Anderson, R. Azuma, E. Barcikowski, J. W. Belz, D. R. Bergman, S. A. Blake, J. P. Lundquist

Izvirni znanstveni članek

Oznake: cosmic rays;acceleration of particles;astroparticle physics;

We search for correlations between the positions of extragalactic objects and the arrival directions of ultra-high energy cosmic rays (UHECRs) with primary energy E ≥ 40 EeV as observed by the surface detector array of the Telescope Array (TA) experiment during the first 40 months of operation. We e ...

Leto: 2013 Vir: Repozitorij Univerze v Novi Gorici (RUNG)

ǂThe ǂenergy spectrum of ultra-high-energy cosmic rays measured by the Telescope Array FADC fluorescence detectors in monocular mode

T. Abu-Zayyad, R. Aida, M. Allen, R. Anderson, R. Azuma, E. Barcikowski, J. W. Belz, D. R. Bergman, S. A. Blake, J. P. Lundquist

Izvirni znanstveni članek

Oznake: UHECR;energy spectrum;fluorescence;monocular;

We present a measurement of the energy spectrum of ultra-high-energy cosmic rays performed by the Telescope Array experiment using monocular observations from its two new FADC-based fluorescence detectors. After a short description of the experiment, we describe the data analysis and event reconstru ...

Leto: 2013 Vir: Repozitorij Univerze v Novi Gorici (RUNG)

Indications of intermediate-scale anisotropy of cosmic rays with energy greater than 57 EeV in the northern sky measured with the surface detector of the telescope array experiment

R. U. Abbasi, Mitsuhiro Abe, T. Abu-Zayyad, M. Allen, R. Anderson, R. Azuma, E. Barcikowski, J. W. Belz, D. R. Bergman, S. A. Blake, J. P. Lundquist

Izvirni znanstveni članek

Oznake: cosmic rays;large-scale structure;universe;surveys;

We have searched for intermediate-scale anisotropy in the arrival directions of ultrahigh-energy cosmic rays with energies above 57 EeV in the northern sky using data collected over a 5 year period by the surface detector of the Telescope Array experiment. We report on a cluster of events that we ca ...

Leto: 2014 Vir: Repozitorij Univerze v Novi Gorici (RUNG)

ǂA ǂnorthern sky survey for point-like sources of EeV neutral particles with the telescope array experiment

R. U. Abbasi, Mitsuhiro Abe, T. Abu-Zayyad, M. Allen, R. Anderson, R. Azuma, E. Barcikowski, J. W. Belz, D. R. Bergman, S. A. Blake, J. P. Lundquist

Izvirni znanstveni članek

Oznake: cosmic rays;acceleration of particles;surveys;

We report on the search for steady point-like sources of neutral particles around 1018 eV between 2008 and 2013 May with the scintillator SD of the Telescope Array experiment. We found overall no significant point-like excess above 0.5 EeV in the northern sky. Subsequently, we also searched for co ...

Leto: 2015 Vir: Repozitorij Univerze v Novi Gorici (RUNG)

Evidence of intermediate-scale energy spectrum anisotropy of cosmic rays E [geq] 10[sup](19.2) eV with the telescope array surface detector

R. U. Abbasi, Mitsuhiro Abe, T. Abu-Zayyad, M. Allen, R. Anderson, R. Azuma, E. Barcikowski, J. W. Belz, D. R. Bergman, S. A. Blake, J. P. Lundquist

Izvirni znanstveni članek

Oznake: cosmic rays;astroparticle physics;anisotropy;large-scale structure;universe;

Evidence for an intermediate-scale energy spectrum anisotropy has been found in the arrival directions of ultra-high energy cosmic rays for energies greater than 10^19.2 eV in the northern hemisphere using 7 years of Telescope Array surface detector data. A relative energy distribution test is done ...

Leto: 2018 Vir: Repozitorij Univerze v Novi Gorici (RUNG)

Study of ultra-high energy cosmic ray composition using telescope array's Middle Drum detector and surface array in hybrid mode

R. U. Abbasi, Mitsuhiro Abe, T. Abu-Zayyad, M. Allen, R. Anderson, R. Azuma, E. Barcikowski, J. W. Belz, D. R. Bergman, S. A. Blake, J. P. Lundquist

Izvirni znanstveni članek

Oznake: ultra-high energy cosmic rays;atmospheric fluorescence;extensive air shower array;telescope array;

Previous measurements of the composition of Ultra-High Energy Cosmic Rays (UHECRs) made by the High Resolution Fly’s Eye (HiRes) and Pierre Auger Observatory (PAO) are seemingly contradictory, but utilize different detection methods, as HiRes was a stereo detector and PAO is a hybrid detector. The f ...

Leto: 2015 Vir: Repozitorij Univerze v Novi Gorici (RUNG)

ǂThe ǂhybrid energy spectrum of Telescope Array's Middle Drum Detector and surface array

R. U. Abbasi, Mitsuhiro Abe, T. Abu-Zayyad, M. Allen, R. Anderson, R. Azuma, E. Barcikowski, J. W. Belz, D. R. Bergman, S. A. Blake, J. P. Lundquist

Izvirni znanstveni članek

Oznake: cosmic rays;energy spectrum;telescope array;ultra high energy;

The Telescope Array experiment studies ultra high energy cosmic rays using a hybrid detector. Fluorescence telescopes measure the longitudinal development of the extensive air shower generated when a primary cosmic ray particle interacts with the atmosphere. Meanwhile, scintillator detectors measure ...

Leto: 2015 Vir: Repozitorij Univerze v Novi Gorici (RUNG)

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