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Hace 2 días · In radio astronomy, a fast radio burst (FRB) is a transient radio pulse of length ranging from a fraction of a millisecond, for an ultra-fast radio burst, to 3 seconds, caused by some high-energy astrophysical process not yet understood.
Hace 3 días · Rotation, however, is expected to be a universal feature of compact astrophysical objects. The black-hole candidate binary X-ray source GRS 1915+105 appears to have an angular momentum near the maximum allowed value. That uncharged limit is
Hace 4 días · In gamma-ray astronomy, gamma-ray bursts ( GRBs) are immensely energetic explosions that have been observed in distant galaxies, being the brightest and most extreme explosive events in the entire universe, [1] [2] [3] as NASA describes the bursts as the "most powerful class of explosions in the universe". [4]
19 de may. de 2024 · Chandra X-ray Observatory, U.S. satellite, one of the National Aeronautics and Space Administration (NASA) fleet of “Great Observatories” satellites, which is designed to make high-resolution images of celestial X-ray sources. In operation since 1999, it is named in honour of Subrahmanyan Chandrasekhar, a pioneer of the field of stellar evolution.
18 de may. de 2024 · The device produces a spectrum of X-ray sources between 400 and 12,000 electron volts — up to 5,000 times the energy of visible light — with unprecedented detail. Credit: NASA/XRISM/Caroline Kilbourne
14 de may. de 2024 · Subjects: Astrophysics of Galaxies (astro-ph.GA) We have investigated the redshift evolution of the relationship between supermassive black hole (SMBH) mass and host bulge mass using a semi-analytical galaxy formation model ν2 GC. Our model reproduces the relation in the local universe well.
10 de may. de 2024 · Astrophysics > High Energy Astrophysical Phenomena. [Submitted on 10 May 2024] Advancing Precision Particle Background Estimation for Future X-ray Missions: Correlated Variability between AMS and Chandra/XMM-Newton.
