Tag: #astrophysics

Preprint: CHIME Fast Radio Bursts Trace Diffuse Baryons Across the Cosmic Web

A new preprint uses dispersion from 3,455 CHIME fast radio bursts to statistically link FRB sightlines with maps of hot gas and galaxies, probing diffuse baryons.

#frb, #astrophysics, #cosmology, #chime, #baryons

Preprint suggests two supernova remnants may accelerate cosmic rays to PeV energies

A LHAASO preprint reports gamma rays up to hundreds of TeV from two supernova remnants, which authors interpret as evidence they accelerated hadronic cosmic rays to PeV energies.

#cosmicrays, #lhaaso, #supernova, #gammarays, #astrophysics

Study: Cygnus X-3 Emits Petaelectronvolt Gamma Rays, Hinting at Galactic 'PeVatron'

LHAASO reports variable gamma rays up to petaelectronvolt energies from Cygnus X-3, suggesting the microquasar may be a Galactic PeVatron.

#astrophysics, #gammarays, #cosmicrays, #lhaaso, #cygnusx3

Gravitational-wave catalog reveals long-predicted ‘missing’ range in black hole masses

Analysis of dozens of LIGO-Virgo-KAGRA mergers finds evidence for the pair-instability mass gap, linking black hole sizes to stellar deaths.

#gravitationalwaves, #blackholes, #ligo, #astrophysics, #stars

Oval Orbit Revealed in LIGO’s 2020 Neutron Star–Black Hole Crash

A new reanalysis of GW200105 finds the pair merged on an eccentric orbit, pointing to a chaotic, cluster-like origin rather than a quiet stellar partnership.

#gravitationalwaves, #ligo, #blackhole, #neutronstar, #astrophysics

Reanalysis of Landmark LIGO Signal Suggests Black Hole–Neutron Star Crash Had an Oval Orbit

A new study finds GW200105 kept a surprisingly eccentric orbit before merging, pointing to formation in dense clusters or triple-star systems.

#gravitationalwaves, #ligo, #blackholes, #neutronstars, #astrophysics