Between the X-rays and the high-energy gamma rays lies the “MeV gap,” the least-explored window in the whole electromagnetic spectrum, where photons are stubbornly hard to pin down. Using 14 years of Fermi Large Area Telescope data, a team has charted it more deeply than ever, cataloguing 450 sources between 20 and 200 MeV, most of them powerful distant blazars and 60 of them entirely new.
To access the full content, become a member by clicking the link below.
Compártelo:
Descubre más desde SKYCR.ORG
Suscríbete y recibe las últimas entradas en tu correo electrónico.
, with 450 sources between 20 and 200 MeV. Most are flat-spectrum radio quasars, powerful distant blazars driven by supermassive black holes, and 60 are newly discovered gamma-ray sources. The catalog marks a step toward closing the MeV gap ahead of NASA’s COSI mission.){kind=link}