The Sixth Zeldovich meeting

Session

Artificial Intelligence and cosmology

17 Jul 2026, 09:00

ICRANet, Pescara, Italy

Conveners

Artificial Intelligence and cosmology

• Yu Wang (ICRA/ICRANet/INAF)

41. Gamma-Ray Bursts as probes of dark energy

Maria Dainotti (National Astronomical Observatory of Japan)

17/07/2026, 09:00

Invited talk

Testing the $Λ$CDM model requires cosmological probes spanning the wide redshift interval between Type Ia Supernovae (SNe Ia, $z\lesssim2.9$) and the Cosmic Microwave Background (CMB, $z\approx1100$). Gamma-Ray Bursts (GRBs), observed up to redshift $z=9.2$, offer the opportunity to explore this regime. Here, we investigate how many GRBs are needed to become a useful cosmological probe capable...

81. Ranking Prompt–Plateau Correlations in Gamma-Ray Bursts with Symbolic Regression

Fatemeh Rastegar Nia (Alzahra university and ICRANet)

17/07/2026, 09:35

Oral presentation

Gamma-ray bursts (GRBs) show several empirical correlations that constrain their central engines, relativistic outflows, and radiation processes. One of the best known afterglow relations is the Dainotti anti-correlation between the X-ray plateau luminosity and the rest-frame plateau duration. Here we use symbolic regression to compare this relation with other low-dimensional correlations in...

86. Revision and explaining SN 1054 by GRB 190114C and GRB 220101A

Costantino Sigismondi (ICRA Sapienza and ICRANET Pescara)

17/07/2026, 10:10

Invited talk

The Crab Nebula is the remnant of the high energy event occurred in 1054 AD and reported in several historical documents. Even if the chronology is not always coherent for several reasons (time distance from the event to the report, political censorship, religious re-framing of the event…) the correlation between a strong visible event in daytime and the sudden spread of plagues in Egypt and...

83. Optical transients from non-explosive double white-dwarf mergers: the case of a central neutron star remnant

Ridha Fathima Mohideen Malik (Università degli Studi di Ferrara)

17/07/2026, 11:00

Oral presentation

Discoveries of ultra-massive magnetic white dwarfs (WDs) and peculiar pulsars have been proposed to originate in double white dwarf (DWD) mergers. There are three possible post-merger central remnants of non-explosive mergers: 1) a stable sub-Chandrasekhar WD; 2) a rapidly rotating super-Chandrasekhar WD; 3) a neutron star (NS).
In this work, we explore the thermal transient arising from...

42. Overview of the Euclid mission

Mario Ballardini

17/07/2026, 11:35

Invited talk

The standard cosmological model successfully describes a wide range of observations, yet the nature of dark matter and dark energy remains unknown. Euclid is ESA’s space mission designed to address these questions by mapping the extragalactic sky with high-resolution optical imaging and near-infrared photometry and spectroscopy. Its main cosmological probes, weak gravitational lensing and...

15. Cooling and emission of newborn quark stars

Gregory Vereshchagin (ICRANet)

17/07/2026, 12:10

Invited talk

Cooling of newborn quark stars occurs through neutrino emission from their interiors and photon and electron-positron pairs emission from their surface. We will discuss the cooling process of bare hot quark stars with particular emphasis on luminosity and spectrum, providing input for ongoing observational programs in X-rays.

51. On Synchrotron Radiation Within Non-homogeneous Astrophysical Radiator Paradigm

Mile Karlica (Astronomical Observatory Belgrade)

17/07/2026, 12:45

Invited talk

Numerous observations and numerical simulations show us that non-homogeneous magnetic fields are ubiquitous within astrophysical phenomena, be it in a regular or stochastic way. Nevertheless, models of astrophysical non-thermal radiation (namely synchrotron radiation) rarely address all the aspects of this matter. In this talk we will examine the limits of the standard synchrotron theory used...