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Israel, GianLuca (Istituto Nazionale di Astrofisica (INAF))06/05/26, 10:20
Magnetic fields play a fundamental role in shaping the observational properties and evolution of compact objects across multiple scales. I will review some advances highlighting the impact of strong magnetic fields in neutron stars and white dwarfs, with particular emphasis on new observational results.
Magnetars represent the most extreme case, where ultra-strong magnetic fields (≳10¹⁴ G)...
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Burgay, Marta (Istituto Nazionale di Astrofisica (INAF))06/05/26, 10:45
The clock-like precision of pulsar signals allows us to use these rapidly-rotating, radio-emitting compact objects as superb laboratories in space: we can employ them collectively as probes of the magnetised interstellar medium of our Galaxy, or as beacons in a space-time distorted by long gravitational waves such as those emitted by supermassive black-hole binaries. When we find them orbiting...
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Motta, Sara Elisa (Istituto Nazionale di Astrofisica (INAF))06/05/26, 11:30
The inflow of matter onto astronomical objects is connected to the generation of outflows throughout the Universe on a variety of scales, from proto-planetary disks, to merging neutron star systems and gamma ray bursts, to stellar mass and supermassive black holes.
The matter inflow/outflow processes scale predictably with mass, and proceeds according to the same basic principles around all...
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Corongiu, Alessandro (Istituto Nazionale di Astrofisica (INAF) - Osservatorio Astronomico di Cagliari)06/05/26, 11:50
Observations with the MeerKAT radio telescope, located in South Africa, has lead to significant advances in several fields of radio astronomy, including the field of radio pulsars. In this talk will be reported about some recent discoveries and follow up results obtained through observations of millisecond pulsars in globular clusters.
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Dr. Bachetti, Matteo (Istituto Nazionale di Astrofisica (INAF))06/05/26, 12:05
Ultraluminous X-ray sources (ULXs) are off-nuclear point sources radiating above the Eddington limit for a typical stellar remnant black hole.
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Some ULXs might be sub-Eddington intermediate-mass black holes, but the bulk of this class is now widely believed to be powered by super-Eddington accretion onto compact objects.
In a handful of cases, this was proven by the detection of pulsations,... -
Loffredo, Eleonora (Istituto Nazionale di Astrofisica (INAF))06/05/26, 12:20
Binary neutron star (BNS) mergers eject neutron-rich matter, providing ideal conditions for the nucleosynthesis of heavy elements via the r-process. The radioactive decay of these elements powers a quasi-thermal electromagnetic transient known as kilonova (KN). Despite significant progress since the detection of GW170817, many open questions about KNe remain, such as the interpretation of the...
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Vecchiotti, Vittoria (Istituto Nazionale di Astrofisica (INAF))06/05/26, 12:35
Recently, the Large High-Altitude Air Shower Observatory (LHAASO) collaboration reported ultra-high-energy gamma-rays from six microquasar systems.
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For five of these sources, the emission exceeds $100$ TeV, making microquasars promising Galactic PeVatrons.
In this work, we investigate whether gamma-rays around $100$ TeV can originate from hadronic interactions of accelerated cosmic rays with... -
BIANCHINI, GABRIELE (University of Camerino)06/05/26, 12:50
Quasi-periodic oscillations (QPOs) observed in the X-ray emission of accreting compact objects are among the most promising astrophysical messengers of strong-field gravity. Yet, despite decades of observations, their physical origin remains debated, and the most established framework to interpret them, the relativistic precession model (RPM), shows persistent observational tensions, including...
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Motta, Sara Elisa (Istituto Nazionale di Astrofisica (INAF))
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