Resultado de búsqueda
Hace 9 horas · Key words. gamma-ray bursts – X-rays – gravitational waves – gamma-ray detectors 1. Introduction Gamma-ray bursts (GRBs) release a large amount of electro-magnetic energy (E γ∼1051 erg) over a short timescale (∼10−2 − 103 seconds) as a result of energy dissipation in a strongly colli-
Hace 4 días · Detecting γ-ray flares from more dwarf stars can improve our understanding of their magnetospheric properties, and could also indicate a diminished likelihood of their planets’ habitability. In this work, we stack data from the Fermi Gamma-ray Space Telescope during a large number of events identified from optical and X-ray flare surveys.
Hace 5 días · We show that these fluxes are within reach for the upcoming COSI-SMEX $\gamma$-ray telescope over its nominal satellite mission duration of 2 yr. Given the Local Bubble models considered, we conclude that in the case of 10-20 Myr-old superbubbles, the distributions of $^{60}\mathrm{Fe}$ and $^{26}\mathrm{Al}$ are not co-spatial - an assumption usually made in $\gamma$-ray data analyses.
Hace 6 días · Researchers analyzing data from NASA’s James Webb Space Telescope have pinpointed three galaxies that may be actively forming when the universe was only 400 to 600 million years old. Webb’s data show these galaxies are surrounded by gas that the researchers suspect to be almost purely hydrogen and helium, the earliest elements to exist in ...
Hace 4 días · Recent studies suggest that noninvasive imaging methods (EEG, MEG) in the human brain scalp can decode the content of visual features information (orientation, color, motion, etc.) in Visual ...
Hace 5 días · In the present work, we report on the further extension of the level structure in 217 Ac using in-beam γ 𝛾 \gamma italic_γ-ray spectroscopic techniques.Figure 3 illustrates the partial level scheme of 217 Ac resulting from the present analysis. The level scheme is extended up to 3.8 MeV excitation energy and I π superscript 𝐼 𝜋 I^{\pi} italic_I start_POSTSUPERSCRIPT italic_π end ...
Hace 2 días · Cosmic rays streamed through Earth's atmosphere 41,000 years ago: New findings on the Laschamps excursion. Apr 19, 2024. Scientists' research answers big question about our system's largest planet.
