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UTC+3

10:00	0:40	Prof. Xiao Kong Prof. Xiao Kong National Astronomical Observatories, Chinese Academy of Sciences	SpecCLIP: A Foundation Model for Cross-Modality Stellar Spectroscopy and Its Applications to LAMOST
This talk is about SpecCLIP, a foundation model for stellar spectroscopy that aligns low-resolution spectra from LAMOST with Gaia XP spectra through contrastive learning in a shared latent space. SpecCLIP combines modality-specific encoders and auxiliary decoders to preserve both shared and unique spectral features, enabling accurate parameter estimation, cross-modal spectrum translation, and similarity-based retrieval. The model has demonstrated strong performance across a wide range of astrophysical parameters, particularly in low-metallicity regimes. Looking ahead, we are extending this framework into a truly multimodal foundation model for astronomy, by integrating additional data types including photometric images (e.g., from Pan-STARRS and SDSS) and medium-resolution spectra from LAMOST. Our goal is to jointly align and train these diverse modalities in a unified latent space, enabling flexible cross-modal predictions such as inferring spectra from images or vice versa. This capability is particularly powerful for identifying rare stellar populations, such as extremely metal-poor stars, and opens up new avenues for scientific discovery in stellar archaeology and Galactic evolution. I will also outline our plans to deploy this model in the next-generation LAMOST data processing pipeline, enhancing data products with intelligent, physically-informed parameter inference.
10:00	0:40	Prof. Xiao Kong Prof. Xiao Kong National Astronomical Observatories, Chinese Academy of Sciences
SpecCLIP: A Foundation Model for Cross-Modality Stellar Spectroscopy and Its Applications to LAMOST

10:40	0:40	Dr. Alexander Meshcheryakov Dr. Alexander Meshcheryakov IKI	AI in X-Astronomy: detection and identification of distant X-ray sources - massive galaxy clusters, luminous AGNs and rare SyXB stars
TBD
10:40	0:40	Dr. Alexander Meshcheryakov Dr. Alexander Meshcheryakov IKI
AI in X-Astronomy: detection and identification of distant X-ray sources - massive galaxy clusters, luminous AGNs and rare SyXB stars

11:20	0:30	Coffee Break

11:50	0:30	Dr. Roman Krivonos Dr. Roman Krivonos IKI	A wide field X-ray search for the Geminga's pulsar halo with SRG/ART-XC
The searches for the putative large-scale X-ray halo around the Geminga pulsar have been extensively performed using various narrow field of view X-ray telescopes. In this paper we present wide-field scanning observation of Geminga with SRG/ART-XC. Our X-ray analysis covers a large area of the sky 3.5x3.5 degrees of direct imaging in the 4-12 keV energy band, comparable with the size of expected Geminga emission, for the first time. The ART-XC observation provides a highly uniform sky coverage without strong vignetting effects. The synchrotron X-ray halo flux is predicted from a physical model based on particle injection, diffusion and cooling over the pulsar’s lifetime, and consistently including the spectral and spatial properties of the synchrotron X-ray and inverse Compton gamma-ray emissions. The model is tuned to reproduce existing multi-wavelength data coming from X-ray upper limits and GeV to TeV gamma ray observations. After taking into account the high particle background and its uncertainties, no emission is significantly found in the assumed source region, and X-ray flux upper limits are derived, which are less constraining within a factor of three with respect to existing ones obtained with narrow field of view telescopes and longer exposure times. Nonetheless, we put direct and independent constraints on the Geminga's ambient magnetic field strength compatible with other studies. Our methodology, including the simulation for longer observation times is applied for the first time to the wide field of view search of pulsar halos.
11:50	0:30	Dr. Roman Krivonos Dr. Roman Krivonos IKI
A wide field X-ray search for the Geminga's pulsar halo with SRG/ART-XC

12:20	1:10	Lunch

13:30	4:00	Guided Tour of the Moscow Kremlin (excursion starts at 15:00)