High Energy Astrophysics and Cosmology in the era of all-sky surveys

Session

Little red dots, quasars and blazars

15 Jun 2026, 15:30

59. Microquasars, Little Red Dots and AGN: Insights from Radio Sky Surveys

Felix Mirabel

15/06/2026, 15:30

The radio emission from Microquasars (MQs), Little Red Dots (LRDs) and Active Galactic Nuclei (AGN) is crucial to gain insight into the mass accretion, relativistic jets and feedback of black holes (BHs) in these astronomical objects. Based on archived radio monitoring data and the VLASS and FIRST sky surveys of the National Radio Observatory (NRAO), were obtain the following...

75. AstroGenesis: A Domain-Aware Multi-Agent Model for Data-Driven Astrophysics

Prof. Narek Sahakyan (ICRANET-Armenia IO)

15/06/2026, 16:30

Astrophysics is entering a data-rich era driven by multi-wavelength observatories and multi-messenger experiments. These facilities produce vast, heterogeneous datasets that challenge traditional analysis pipelines. General-purpose AI systems, while powerful, often lack the contextual reasoning and scientific rigor required for astrophysical interpretation. AstroGenesis is an AI-powered,...

69. Little Red Dots as Sites for Cosmic Prebiotic Chemistry

Yu WANG (ICRA / ICRANet)

15/06/2026, 17:00

Both the Galactic Center and little red dots (LRDs) host million-solar-mass black holes within dense, cold reservoirs of molecules associated with dust grains, and are electromagnetically tranquil. These conditions enable complex molecular chemistry and may serve as natural laboratories for prebiotic genetic evolution by allowing the synthesis of organic molecules essential for life.

17. Lighthouses in the Centres of Galaxies

Fiona Redmen (Universitat Autonoma de Barcelona)

15/06/2026, 17:20

Geometric constraints on inner regions of active galactic nuclei (AGN) are crucial for uncovering the behaviour of matter in extreme gravitational environments and thus for providing tests of general relativity. A time lag between different energy bands occurs due to the different path lengths for photons which have travelled directly to us after being Compton up-scattered in the corona, and...

43. SRGA J2306 + 1556: an extremely X-ray luminous, heavily obscured, radio-loud quasar at z = 0.44 discovered by SRG/ART-XC

Grigorii Uskov (Space Research Institute of Russian Academy of Sciences (IKI))

15/06/2026, 17:40

We report on a detailed study of a luminous, heavily obscured ($N_{\rm H}\sim2\times 10^{23}$ cm$^{-2}$), radio-loud quasar SRGAJ230631.0+155633, discovered by the SRG/ART-XC telescope, which is located at $z=0.4389$ and is a type 2 AGN. We combine radio-to-X-ray data, including near-simultaneous ART-XC and Swift/XRT observations conducted in June 2023. During these follow-up observations, the...

31. Increasing the X-ray source search sensitivity in Chandra's Deep Field South using likelihood-based detection

Andrey Mukhin (IKI RAS)

16/06/2026, 17:30

Likelihood function-based methods are a theoretically optimal way of detecting sources. They maximize the use of all available information about the telescope and expected spectral information about the source.

In this talk, we describe how this new method was set up and applied to the Chandra's Deep Field South, a unique X-ray dataset with its record 7 Ms exposure and sub-arcsec spatial...