Astrophysics (since August 2025)

Categories within Astrophysics

• astro-ph.CO - Cosmology and Nongalactic Astrophysics (new, recent)
  Phenomenology of early universe, cosmic microwave background, cosmological parameters, primordial element abundances, extragalactic distance scale, large-scale structure of the universe, dark energy and dark matter.
• astro-ph.EP - Earth and Planetary Astrophysics (new, recent)
  Interplanetary medium, planetary physics, planetary astrobiology, extrasolar planets, solar system formation and evolution, comets, asteroids, meteors.
• astro-ph.GA - Astrophysics of Galaxies (new, recent)
  Phenomena pertaining to galaxies or the Milky Way. Star clusters, HII regions, interstellar medium, molecular clouds, galactic structure, formation and evolution.
• astro-ph.HE - High Energy Astrophysical Phenomena (new, recent)
  Cosmic ray production, acceleration, propagation, detection. Gamma ray astronomy. Supernovae, neutron stars, pulsars, black holes, X-ray binaries, active galactic nuclei.
• astro-ph.IM - Instrumentation and Methods for Astrophysics (new, recent)
  Detector and telescope design, experiment proposals, laboratory astrophysics, data analysis methods, statistical methods, software and simulations.