4 papers
X-ray polarization in the soft state of Cyg X-1
A. Niedzwiecki, M. Szanecki, A. Veledina +5
We aim to identify the physical mechanism responsible for the observed X-ray emission and polarization of Cyg X-1 in the soft state. We performed a detailed spectral analysis of X-…
Milky-Way-like stars in a galaxy core 8 billion years ago revealed by gravitational lensing
Quirino D'Amato, Filippo Mannucci, Alessandro Sonnenfeld +40
The assembly of stellar-dominated cores in elliptical galaxies is key to understanding how cosmic structures evolved. Gravitational lensing offers unique insights into the nature o…
One cloud is not enough: extreme conditions bias chemical abundances in high-redshift galaxies
Bianca Moreschini, Francesco Belfiore, Alessandro Marconi +18
Since its launch, JWST has opened an unprecedented opportunity to characterise the ionised ISM of high-redshift galaxies using well-established rest-frame UV/optical diagnostics fr…
Unveiling the Fast Acceleration of AGN-Driven Winds at Kiloparsec Scales
Cosimo Marconcini, Alessandro Marconi, Giovanni Cresci +18
Supermassive black holes at the centre of galaxies gain mass through accretion disks. Models predict that quasi-spherical winds, expelled by the black hole during active accretion…