4 papers
Constraining meV Axion Dark Matter with ALMA Observations of the Galactic Center Magnetar SGR 1745-2900
Javier De Miguel, Evanthia Hatziminaoglou, Frédéric Poidevin +4
We report a mm-wave search for axion dark matter from SGR 1745-2900, based on 4.8 h of ALMA observations. No candidate features are found between 133.99-135.78, 135.91-137.70, 145.…
A magnetar outburst with atypical evolution: the case of Swift J1555.2-5402
A. Borghese, F. Coti Zelati, M. Imbrogno +12
The magnetar Swift J1555.2-5402 was discovered in outburst on 2021 June 3 by the Burst Alert Telescope on board the Swift satellite. Early X-ray follow-up revealed a spin period P~…
Neutron star envelopes with machine learning: a single-hidden-layer neural network application
K. Kovlakas, D. De Grandis, N. Rea
Thermal and magneto-thermal simulations are an important tool for advancing understanding of neutron stars, as they allow us to compare models of their internal structure and physi…
Magnetar Outburst Models with Cooling Simulations
D. De Grandis, N. Rea, K. Kovlakas +6
Magnetar outbursts are among the most noteworthy manifestations of magnetism in neutron stars. They are episodes in which the X-ray luminosity of a strongly magnetised neutron star…