RossiXTE, it has been possible to carry out deep multi-wavelength observations of the counterparts associated with the GRBs just within a few hours of occurence, thanks to the observation of the fading X-ray emission that follows the more energetic gamma-ray photons once the GRB event has ...
Cosmic Rays: The Most Energetic Particles in the Universe Cosmic rays are an ever present aspect of nature. The birth of the field of elementary-particle physics can be traced to studies of cosmic rays. Now advances in technology and new instrumentation are changing the nature of cosmic-ray re...
Emission from Gamma-ray bursts is thought to be powered mainly by synchrotron radiation from energetic electrons. The same electrons might scatter these synchrotron seed photons to higher (>10 GeV) energies, building a distinct spectral component (synchrotron self-Compton, SSC). This process is expe...
The hunt for PeVatrons as the origin of the most energetic photons observed in the Galaxy Article 22 April 2024 References Weekes, T. C. et al. Observation of TeV gamma rays from the Crab nebula using the atmospheric Cerenkov imaging technique. Astrophys. J. 342, 379–395 (1989). Arti...
Gamma and E-beam radiations are the most energetic as they effectively kill vegetative pathogens and endospores. E-beam radiation delivers a higher radiation dose than Gamma radiation, penetrating less deep. Meanwhile, Gamma radiation can penetrate about 50 cm of the layers, E-beam radiation can...
In tomographic image processing of seismic data, the first-arrival traveltime (FATT) is often different from those of more energetic wavefronts in realistic media. Since the traveltime of most-energetic wavefront (METT) dominates the data, computing the METT is recognized as an essential element...
Gamma-ray bursts (GRBs) are brief flashes of γ-rays and are considered to be the most energetic explosive phenomena in the Universe. The emission from GRBs comprises a short (typically tens of seconds) and bright prompt emission, followed by a much longer afterglow phase. During the ...
20. People who spend more time with their families are usually healthier and happier. 那些花更多时间和家人在一起的人通常会更健康更幸福。 21. The job was hard, which made me so tired that I almost quit half way. 这份工作太辛苦,差点使我半途而废。
Very few acts have made as much of an impact on independent music over the past 30 years like the Minneapolis hip-hop duo Atmosphere. They have one of the most dedicated fan bases on Earth, with the group always performing to energetic audiences while embarking on a heavy amount of touring...
We interpret the data as evidence for the acceleration of ultrarelativistic electrons in the jet, and favour the synchrotron explanation for the X-rays. Given that this jet is not exceptional in terms of power, length or speed, it is possible that ultrarelativistic electrons are commonplace in ...