L. Villaseñor

Combined dark matter search towards dwarf spheroidal galaxies with Fermi -LAT, HAWC, H.E.S.S., MAGIC, and VERITAS

S. Abdollahi, L Baldini, R Bellazzini, B. Berenji et autres

Abstract Dwarf spheroidal galaxies (dSphs) are excellent targets for indirect dark matter (DM) searches using gamma-ray telescopes because they are thought to have high DM content and a low astrophysical background. The sensitivity of these searches is improved by combining the observations …

fr, it, us, de, Afrique du Sud, es, jp, cn, at, dk, th, si, mx, pl (code pays fourni par la source)

HAWC Performance Enhanced by Machine Learning in Gamma-hadron Separation

R. Alfaro, C. Álvarez, Amado Andrés, E. Anita-Rangel et autres

Abstract Improving gamma-hadron separation is one of the most effective ways to enhance the performance of ground-based gamma-ray observatories. With more than a decade of continuous operation, the High-Altitude Water Cherenkov (HAWC) Observatory has contributed significantly to high-energy astrophysics. To further leverage …

Ultra-high-energy gamma-ray bubble around microquasar V4641 Sgr

R. Alfaro, C. Alvarez, J. C. Arteaga-Velázquez, D. Avila Rojas et autres

mx, us, pl, de, kr, cn (code pays fourni par la source)

Gamma/hadron separation with the HAWC observatory

R. Alfaro, C. Álvarez, J. D. Álvarez, José Roberto Ángeles Camacho et autres

mx, us, pl, th, de, kr, es, cn, kp (code pays fourni par la source)

Combined dark matter searches towards dwarf spheroidal galaxies with Fermi-LAT, HAWC, H.E.S.S., MAGIC, and VERITAS

Céline Armand, Hassan Abdalla, Felix Aharonian, Faical Ait-Benkhali et autres

Cosmological and astrophysical observations suggest that 85% of the total matter of the Universe is made of Dark Matter (DM). However, its nature remains one of the most challenging and fundamental open questions of particle physics. Assuming particle DM, this exotic form …

de, fr, us, mx, ch (code pays fourni par la source)

Convolutional Neural Networks for Low Energy Gamma-Ray Air Shower Identification with HAWC

I. J. Watson, A. U. Abeysekara, A. Albert, Ruben Jose Alfaro et autres

A major task in ground-based gamma-ray astrophysics analyses is to separate events caused by gamma rays from the overwhelming hadronic cosmic-ray background. In this talk we are interested in improving the gamma ray regime below 1 TeV, where the gamma and cosmic-ray …

kr (code pays fourni par la source)

HAWC measurements of the energy spectra of cosmic ray protons, helium and heavy nuclei in the TeV range

Juan Carlos Arteaga Velázquez, A. U. Abeysekara, A. Albert, Ruben Jose Alfaro et autres

Current knowledge of the relative abundances and the energy spectra of the elemental mass groups of cosmic rays in the 10 TeV - 1 PeV interval are uncertain. This situation prevents carrying out precision tests that may lead to distinguish among the …

us, mx, de (code pays fourni par la source)

Standardized formats for gamma-ray analysis applied to HAWC observatory data

Laura Olivera-Nieto, Vikas Joshi, Harm Schoorlemmer, Axel Donath et autres

A wide range of data formats and proprietary software have traditionally been used in $\gamma$-ray astronomy, usually developed for a single specific mission or experiment. However, in recent years there has been an increasing effort towards making astronomical data open and easily …

de (code pays fourni par la source)

Study of the morphology of the region surrounding eHWC J1850+001

C. Brisbois, A. U. Abeysekara, A. Albert, Ruben Jose Alfaro et autres

Although at extreme energies (>50 TeV) γ-ray sources generally have large angular separations from one another as observed on Earth, at lower energies in the galactic plane this is often not the case. HAWC observes extended emission from the source eHWC J1850+001 …

us (code pays fourni par la source)

A search for spectral hardening in HAWC sources above 56 TeV

Kelly Malone, A. U. Abeysekara, A. Albert, Ruben Jose Alfaro et autres

The High Altitude Water Cherenkov (HAWC) Observatory is a wide-field-of-view gamma-ray observatory that is optimized to detect gamma rays between ~300 GeV and several hundred TeV. The HAWC Collaboration recently released their third source catalog (3HWC), which contains 65 sources. One of …

us (code pays fourni par la source)

Features of the Energy Spectrum of Cosmic Rays above 2.5 × 10 18 eV Using the Pierre Auger Observatory

A. Aab, P. Abreu, M. Aglietta, Justin M. Albury et autres

We report a measurement of the energy spectrum of cosmic rays above 2.5×10$^{18}$ eV based on 215 030 events. New results are presented: at about 1.3×10$^{19}$ eV, the spectral index changes from 2.51±0.03(stat)±0.05(syst) to 3.05±0.05(stat)±0.10(syst), evolving to 5.1±0.3(stat)±0.1(syst) beyond 5×10$^{19}$ eV, while …

nl, pt, it, au, ar, mx, es, us, de, ro, cz, fr, br, pl, be (code pays fourni par la source)

Correction: Roberts et al. “Satiating Effect of High Protein Diets on Resistance-Trained Individuals in Energy Deficit” Nutrients 2019, 11(1), 56

Justin Roberts, Anastasia Zinchenko, Krishnaa T. Mahbubani, James Johnstone et autres

The authors wish to make a correction to the published version of their paper [...].

gb (code pays fourni par la source)