Results 91 to 100 of about 2,193 (202)

Joint photon-electron Lorentz violation parameter plane from LHAASO data

open access: yesPhysics Letters B, 2022
The Large High Altitude Air Shower Observatory (LHAASO) is one of the most sensitive gamma-ray detector arrays, whose ultrahigh-energy (UHE) work bands not only help to study the origin and acceleration mechanism of UHE cosmic rays, but also provide the ...
Ping He, Bo-Qiang Ma
doaj  

The Pulsar in the Crab Nebula

open access: yes, 2015
The Crab pulsar belongs to one of the most studied stellar objects in the sky. Since its accidental detection in 1968, its pulsed emission has been observed throughout most of the electromagnetic spectrum. Although currently one of more than 2000 known pulsars, its way of work has remained not understood making the Crab pulsar an object of continuous ...
openaire   +2 more sources

On the Nature of the Emission of the Crab Nebula [PDF]

open access: yesSymposium - International Astronomical Union, 1958
The emission of the Crab Nebula is perhaps connected with the internal motions of the gas. As shown by the observations, the power of the emission sources differs by some hundred times in different points of the amorphous mass (“wisps” and other details).
openaire   +2 more sources

Analysis of Crab X-Ray Polarization Using Deeper Imaging X-Ray Polarimetry Explorer Observations

open access: yesThe Astrophysical Journal
We present Crab X-ray polarization measurements using Imaging X-Ray Polarimetry Explorer (IXPE) data with a total exposure of 300 ks, three times more than the initial 2022 discovery paper.
Josephine Wong   +100 more
doaj   +1 more source

First Detection of Polarization in X-Rays for PSR B0540-69 and Its Nebula

open access: yesThe Astrophysical Journal
We report on X-ray polarization measurements of the extragalactic Crab-like PSR B0540-69 and its Pulsar Wind Nebula (PWN) in the Large Magellanic Cloud, using a ∼850 ks Imaging X-ray Polarimetry Explorer (IXPE) exposure. The PWN is unresolved by IXPE. No
Fei Xie   +103 more
doaj   +1 more source

News Feature: Tracing gold's cosmic origin story. [PDF]

open access: yesProc Natl Acad Sci U S A, 2021
Croswell K.
europepmc   +1 more source

Electron Acceleration in the Crab Nebula

open access: yes, 2019
4 pages, 3 figures.
Giacinti, G., Kirk, J.
openaire   +3 more sources

Imaging and Spectral Fitting of Bright Gamma-Ray Sources with the COSI Balloon Payload

open access: yesThe Astrophysical Journal
The Compton Spectrometer and Imager balloon payload (COSI-Balloon) is a wide field-of-view Compton gamma-ray telescope that operates in the 0.2–5 MeV bandpass.
Jarred M. Roberts   +19 more
doaj   +1 more source

Home - About - Disclaimer - Privacy