Conveners
Observations across electromagnetic spectrum: from gamma to radio
- There are no conveners in this block
Observations across electromagnetic spectrum: from gamma to radio
- Remo Ruffini (ICRANet, ICRA, INAF)
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Bing Zhang (University of Hong Kong)14/07/2026, 09:00Invited talk
I review the recent progress in studying gamma-ray bursts (GRBs), fast X-ray transients (FXTs), and fast radio bursts (FRBs) within the context of multi-wavelength (MW) and multi-messenger (MM) transient astrophysics. Special attention is paid to the breakthrough observations made with the Einstein Probe, SVOM space telescopes, and the FAST radio telescope. Current understanding and open...
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Prof. DI LI (Department of Astronomy, Tsinghua University)14/07/2026, 09:35Invited talk
Modern physics and astronomy both originated from Galileo. Hertz invented the first antenna and demonstrated the wave-particle duality of light. These developments give rise to radio astronomy and giant dishes. The Parkes multi-beam system transformed single-dish radio astronomy, delivering the largest haul of new pulsars, definitive HI galaxy catalogues, and the standard HI maps of the...
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Prof. Marat Gilfanov (MPA, Garching & IKI, Moscow)14/07/2026, 10:10Invited talk
After more than two years of scanning the sky during 2019--2022 the eROSITA X-ray telescope aboard SRG orbital observatory produced the best ever X-ray maps of the sky and discovered more than three million X-ray sources, of which about 20\% are stars with active coronas in the Milky Way, and most of the rest are galaxies with active nuclei, quasars and clusters of galaxies. eROSITA detected...
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Marta Burgay (INAF - Osservatorio Astronomico di Cagliari)14/07/2026, 11:15Invited talk
Pulsars are extremely stable natural clocks and, when found in relativistic binary systems, they can be used as exceptional laboratories to test Relativistic gravity in the strong field regime. In this talk I will present the results obtained in this context by studying the now 20-year-long dataset on the double pulsar system J0737-3039A/B, the only binary hosting two active radio pulsars, and...
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Vadzim Krautsou (University of Turku)14/07/2026, 11:50Invited talk
The Imaging X-ray Polarimetry Explorer (IXPE) has provided the first precise polarization measurements of black hole X-ray binaries, opening a new window on accretion and high-energy emission physics. In my talk, I will review recent IXPE results across different spectral states and discuss models used to interpret the observed polarization signatures. I will focus on what polarization reveals...
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Prof. Vladimir Lipunov (Lomonosov Moscow State University, SAI, Physics Department)14/07/2026, 12:25Invited talk
Observation of this burst, which, based on its brightness, could have been detected by the Galileo telescope diameter, began 200 seconds before the burst itself. That is, before receiving alerts from the gamma-ray observatories. This means that the MASTER network is not only mobile but also has record-breaking combined field-of-view parameters (~4000 square degrees). This sheds new light on...
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Maura Pilia (INAF - Osservatorio Astronomico di Cagliari)15/07/2026, 15:00Invited talk
In this talk I will review the Northern Cross FRB project, the ongoing effort to equip and use the Northern Cross (NC), the oldest Italian radio telescope, to observe FRBs. I will present the project's main results, highlighting the studies on known FRB repeaters and the population studies within our Galaxy and in a sample of star-forming nearby galaxies. Finally I will describe the future...
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Dr Yerlan Aimuratov (Fesenkov Astrophysical Institute)15/07/2026, 15:35Invited talk
Observations of supernovae (SNe) Ic occurring after the prompt emission of long gamma-ray bursts (GRBs) are addressed within the binary-driven hypernova (BdHN) model, where GRBs originate from a binary composed of 10 solar masses carbon–oxygen (CO) star and a neutron star (NS). We report on recent progress in understanding the phenomenon and draw some prospects on GRB-SN research.
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Eugene Oks (Auburn University, USA)15/07/2026, 16:10Oral presentation
The explanation of a puzzling observation by Bowman et al 2018 (Nature, 555, 67) of the redshifted 21 cm spectral line from the early Universe, where it was found that the absorption in this line was about 2 to 3 times stronger than predicted by the standard cosmology and thus the primordial hydrogen gas was significantly cooler than predicted by the standard cosmology, required as the cooling...
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Sergei Grebenev (Space Research Institute, Moscow)15/07/2026, 16:45Invited talk
We present our numerical computations of the broadband radiation spectra forming in a layer of high-temperature ($kT_{\rm e}\sim 50$ keV) semitransparent (with a Thomson optical depth $\tau_{\rm T}\sim 1-3$) plasma with an electron density $N_{\rm e}\sim 10^{17}-10^{19}\ \mbox{cm}^{-3}$ typical for the accretion disk regions surrounding a black hole in X-ray binaries. The computations take...
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Dr Bobir Toshmatov (New Uzbekistan University)15/07/2026, 17:00Oral presentation
We demonstrate how the shadow radius of regular black holes can serve as a powerful diagnostic tool for general relativity coupled with nonlinear electrodynamics (NED). By analyzing Bardeen-like, Hayward-like, and Maxwellian regular spacetimes, we highlight the critical distinction between standard null geodesics and the NED-driven effective photonsphere that governs light propagation. We show...
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Muhammad Usman (Institute of Space Technology (IST), Islamabad)15/07/2026, 17:15Oral presentation
We investigate the quantum dynamics of a spatially homogeneous quintessence field. It is thought that the ground state of the quintessence acts as the cosmological constant in the dynamical dark energy framework. The correlation function and power spectrum of quantum fluctuations exhibit ultraviolet divergence. To address this issue, we reformulate the system by interpreting quintessence as a...
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Kirill Zhirkov (Lomonosov Moscow State University)15/07/2026, 17:30Oral presentation
In 2013, neutrino observatory IceCube first reported discovery of high-energy (100 TeV and more) neutrinos of astrophysical origin. However, due to a bad spatial localization of these neutrinos (more than 1 arcdegree) origin of these neutrinoes stayed unknown. To find their progenitor, IceCube Collaboration organized multimessenger observations. Since 2016, IceCube Collaboration has published...
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Prof. Andrzej Radosz (Institute of Theoretical Physics, Wroclaw University of Science and Technology, Wroclaw, Poland)15/07/2026, 17:45Oral presentation
In a large class of cosmological models quantization of a scalar free field leads to the picture of a system of harmonic oscillators coupled via terms corresponding to creation/annihilation of pairs of particles, obeying momentum conservation. In such a case, an evolution of a creation/annihilation operators, meant as a Bogolyubov transformation, may be regarded as a “rotation” in a...
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