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Showing 1–3 of 3 results

Advanced filters: Author: Gabriele Ghisellini Clear advanced filters

A magnetized Galactic halo from inner Galaxy outflows

A magnetic galactic halo featuring coherent ridges several kiloparsecs above and below the Galactic Disk has been detected in multi-wavelength observations. The halo is probably a consequence of outflows driven by active star-forming regions in the disk.

He-Shou Zhang
Gabriele Ponti
Andrea Merloni
Research23 Sept 2024
Nature Astronomy

Volume: 8, P: 1416-1428
Spectral index-flux relation for investigating the origins of steep decay in γ-ray bursts

Gamma ray bursts (GRB) are transient events releasing large amount of energy. Here, the authors show a relation between the spectral index and the flux, which allows further investigation of the origin of steep decay in GRBs.

Samuele Ronchini
Gor Oganesyan
Om Sharan Salafia
ResearchOpen Access07 Jul 2021
Nature Communications

Volume: 12, P: 1-9
The power of relativistic jets is larger than the luminosity of their accretion disks

Blazars are quasars with a jet pointing towards Earth; analysis of archival observations of a sample of blazars reveals that jet power is larger than, and correlates with, the accretion luminosity, in agreement with numerical simulations.

G. Ghisellini
F. Tavecchio
T. Sbarrato
Research19 Nov 2014
Nature

Volume: 515, P: 376-378