CR-MHD simulations of a Milky Way analogue reproduce observed gamma-ray luminosities and spectra without tuning, with sky morphology set by local gas density fluctuations and angular power spectra tracing gas column rather than cosmic-ray density.
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A ~1 solar-mass main-sequence star with supersolar metallicity has been traced back to the galactic center as a hypervelocity star ejected by the Hills mechanism.
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The diffuse gamma-ray sky of a Milky Way analogue: Local diversity and global constraints
CR-MHD simulations of a Milky Way analogue reproduce observed gamma-ray luminosities and spectra without tuning, with sky morphology set by local gas density fluctuations and angular power spectra tracing gas column rather than cosmic-ray density.
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Discovery of Galactic center ejected star in DESI DR1
A ~1 solar-mass main-sequence star with supersolar metallicity has been traced back to the galactic center as a hypervelocity star ejected by the Hills mechanism.