Search Results - "Nisa, M. U"
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Extended gamma-ray sources around pulsars constrain the origin of the positron flux at Earth
Published in Science (American Association for the Advancement of Science) (17-11-2017)“…The unexpectedly high flux of cosmic-ray positrons detected at Earth may originate from nearby astrophysical sources, dark matter, or unknown processes of…”
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2
The 2HWC HAWC Observatory Gamma-Ray Catalog
Published in The Astrophysical journal (01-07-2017)“…We present the first catalog of TeV gamma-ray sources realized with data from the newly completed High Altitude Water Cherenkov Observatory (HAWC). It is the…”
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3
Very-high-energy particle acceleration powered by the jets of the microquasar SS 433
Published in Nature (London) (01-10-2018)“…SS 433 is a binary system containing a supergiant star that is overflowing its Roche lobe with matter accreting onto a compact object (either a black hole or…”
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4
Spectrum and Morphology of the Very-high-energy Source HAWC J2019+368
Published in The Astrophysical journal (01-04-2021)“…Abstract The MGRO J2019+37 region is one of the brightest sources in the sky at TeV energies. It was detected in the second HAWC catalog as 2HWC J2019+367 and…”
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5
Analysis of the Emission and Morphology of the Pulsar Wind Nebula Candidate HAWC J2031+415
Published in The Astrophysical journal (01-11-2024)“…Abstract The first TeV γ -ray source with no lower energy counterparts, TeV J2032+4130, was discovered by HEGRA. It appears in the third HAWC catalog as 3HWC…”
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6
Spectral Study of Very-high-energy Gamma Rays from SS 433 with HAWC
Published in The Astrophysical journal (01-11-2024)“…Abstract Very-high-energy (0.1–100 TeV) gamma-ray emissions were observed in High-Altitude Water Cherenkov (HAWC) data from the lobes of the microquasar SS…”
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7
Performance of the HAWC Observatory and TeV Gamma-Ray Measurements of the Crab Nebula with Improved Extensive Air Shower Reconstruction Algorithms
Published in The Astrophysical journal (01-09-2024)“…Abstract The High-Altitude Water Cherenkov (HAWC) Gamma-Ray Observatory, located on the side of the Sierra Negra volcano in Mexico, has been fully operational…”
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TeV Analysis of a Source-rich Region with the HAWC Observatory: Is HESS J1809-193 a Potential Hadronic PeVatron?
Published in The Astrophysical journal (01-09-2024)“…Abstract HESS J1809-193 is an unidentified TeV source, first detected by the High Energy Stereoscopic System (H.E.S.S.) collaboration. The emission originates…”
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Detailed Analysis of the TeV γ-Ray Sources 3HWC J1928+178, 3HWC J1930+188, and the New Source HAWC J1932+192
Published in The Astrophysical journal (01-01-2023)“…Abstract The latest High Altitude Water Cherenkov (HAWC) point-like source catalog up to 56 TeV reported the detection of two sources in the region of the…”
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10
HAWC Detection of a TeV Halo Candidate Surrounding a Radio-quiet Pulsar
Published in Astrophysical journal. Letters (01-02-2023)“…Abstract Extended very-high-energy (VHE; 0.1–100 TeV) γ -ray emission has been observed around several middle-aged pulsars and referred to as “TeV halos.”…”
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11
Observation of the Galactic Center PeVatron beyond 100 TeV with HAWC
Published in Astrophysical journal. Letters (20-09-2024)“…Abstract We report an observation of ultrahigh-energy (UHE) gamma rays from the Galactic center (GC) region, using 7 yr of data collected by the High-Altitude…”
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12
Publisher Correction: Very-high-energy particle acceleration powered by the jets of the microquasar SS 433
Published in Nature (London) (01-12-2018)“…In this Letter, owing to a production error, the penultimate version of the PDF was published. The HTML version was always correct. The PDF has been corrected…”
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13
Influence of Exogenous Multienzyme Preparation and Graded Levels of Digestible Lysine in Sunflower Meal-Based Diets on the Performance of Young Broiler Chicks Two Weeks Posthatching
Published in Poultry science (01-12-2006)“…The study was conducted to investigate the effect of adding multienzyme preparation (Rovabio Excel AP, Adisseo Asia Pacific Pte Ltd., Singapore) at 2 inclusion…”
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14
Evidence for neutrino emission from the nearby active galaxy NGC 1068
Published in Science (American Association for the Advancement of Science) (04-11-2022)“…A supermassive black hole, obscured by cosmic dust, powers the nearby active galaxy NGC 1068. Neutrinos, which rarely interact with matter, could provide…”
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15
Analysis of the Emission and Morphology of the Pulsar Wind Nebula Candidate HAWC J2031+415
Published 14-11-2024“…ApJ 975 198 (2024) The first TeV gamma-ray source with no lower energy counterparts, TeV J2032+4130, was discovered by HEGRA. It appears in the third HAWC…”
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16
Ultra-High-Energy Gamma-Ray Bubble around Microquasar V4641 Sgr
Published 21-10-2024“…Nature.634(2024)557-560 Microquasars are laboratories for the study of jets of relativistic particles produced by accretion onto a spinning black hole…”
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Time-Integrated Neutrino Source Searches with 10 Years of IceCube Data
Published in Physical review letters (07-02-2020)“…This Letter presents the results from pointlike neutrino source searches using ten years of IceCube data collected between April 6, 2008 and July 10, 2018. We…”
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18
Testing the Molecular Cloud Paradigm for Ultra-High-Energy Gamma Ray Emission from the Direction of SNR G106.3+2.7
Published 12-09-2024“…A&A 691, A89 (2024) Supernova remnants (SNRs) are believed to be capable of accelerating cosmic rays (CRs) to PeV energies. SNR G106.3+2.7 is a prime PeVatron…”
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Atmospheric Cherenkov Telescopes as a Potential Veto Array for Neutrino Astronomy
Published 08-01-2020“…Astropart.Phys. 117 (2020) 102417 The IceCube Neutrino Observatory has revealed the existence of sources of high-energy astrophysical neutrinos. However,…”
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Characteristics of the Diffuse Astrophysical Electron and Tau Neutrino Flux with Six Years of IceCube High Energy Cascade Data
Published in Physical review letters (17-09-2020)“…We report on the first measurement of the astrophysical neutrino flux using particle showers (cascades) in IceCube data from 2010–2015. Assuming standard…”
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