Results 61 to 70 of about 1,321 (200)
Beyond Accretion Limits: The Rise of Pulsating Gems
Astronomische Nachrichten, Volume 346, Issue 1, January 2025.ABSTRACT The discovery of several ultraluminous X‐ray sources exhibiting fast and rapidly evolving X‐ray pulsations unequivocally associates these sources with accreting neutron stars orbiting relatively massive companion stars (> 8M ⊙$$ {}_{\odot } $$).
Gian Luca Israel +26 more
wiley +1 more source
Focusing X‐Ray Optics for Astronomy
X-Ray Optics and Instrumentation, Volume 2010, Issue 1, 2010., 2010 Focusing X‐ray telescopes have been the most important factor in X‐ray astronomy’s ascent to equality with optical and radio astronomy. They are the prime tool for studying thermal emission from very high temperature regions, non‐thermal synchrotron radiation from very high energy particles in magnetic fields and inverse Compton scattering of lower ...
Paul Gorenstein, Stephen L. O′Dell
wiley +1 more source
Heavy Elements and Electromagnetic Transients from Neutron Star Mergers
Annalen der Physik, Volume 536, Issue 2, February 2024.Astro‐(physics) has made major leaps forward through the combined information provided by both gravitational waves and electromagnetic emission from the first detected neutron star merger event. This review provides an up‐to‐date overview of today's understanding of neutron star mergers and their electromagnetic emission and it discusses possible ...
Stephan Rosswog, Oleg Korobkin
wiley +1 more source
The Dark Matter Annihilation Signal from Dwarf Galaxies and Subhalos
Advances in Astronomy, Volume 2010, Issue 1, 2010., 2010 Dark Matter annihilation holds great potential for directly probing the clumpiness of the Galactic halo that is one of the key predictions of the Cold Dark Matter paradigm of hierarchical structure formation. Here we review the γ‐ray signal arising from dark matter annihilation in the centers of Galactic subhalos.
Michael Kuhlen, Andrey V. Kravtsov
wiley +1 more source
A Spatially Resolved Turbulent Transport Model of the Spectrum and Extension of the Crab Nebula
The Astrophysical JournalThe Crab Nebula is an exceptional astrophysical laboratory for studying the acceleration, transportation, and radiation of ultrarelativistic particles, since its nonthermal emission extends across the entire electromagnetic spectrum up to the PeV γ -rays.
Fang-Wu Lu +4 more
doaj +1 more source
Laue Gamma‐Ray Lenses for Space Astrophysics: Status and Prospects
X-Ray Optics and Instrumentation, Volume 2010, Issue 1, 2010., 2010 We review feasibility studies, technological developments, and the astrophysical prospects for Laue lenses devoted to hard X‐/gamma‐ray astronomy observations.
Filippo Frontera +2 more
wiley +1 more source
PARTICLE TRANSPORT IN YOUNG PULSAR WIND NEBULAE [PDF]
The Astrophysical Journal, 2012 13 pages, ApJ, in press, corrected ...
Tang, Xiaping, Chevalier, Roger A.
openaire +2 more sources
A Possible Pulsar Wind Nebula Origin of 1LHAASO J0056+6346u
The Astrophysical Journal1LHAASO J0056+6346u is one of the newly discovered extended ultra-high-energy (UHE) γ -ray sources by LHAASO experiments. The origin of UHE photons is still not well understood.
Can Zhang +4 more
doaj +1 more source
Neutral Atmospheric Density Measurement Using Insight-HXMT Data by the Earth Occultation Technique
The Astrophysical Journal Supplement Series, 2022 The Earth occultation technique has broad applications in both astronomy and atmospheric density measurements. We construct the background model during the occultation of the Crab Nebula observed by the Insight-Hard X-ray Modulation Telescope (Insight ...
Wang-Chen Xue +14 more
doaj +1 more source
Multiband Nonthermal Radiative Study of PeVatron Candidate Pulsar Wind Nebula HESS J1849-000
The Astrophysical JournalPulsar wind nebula HESS J1849-000 is one of the sources that may emit PeV γ -ray photons based on the recent measurement by the Tibet Air Shower Array and the Large High Altitude Air Shower Observatory.
Bo-Tao Zhu, Fang-Wu Lu, Li Zhang
doaj +1 more source