29th Young Scientists' Conference on Astronomy and Space Physics

Session

High energy astrophysics and astroparticle physics

Apr 26, 2023, 4:00 PM

Zoom

Conveners

High energy astrophysics and astroparticle physics

• Pavlo Plotko

28. Observations and study of Hyper-Luminous Gamma-Ray Burst GRB 221009A at the Kyiv comet station

Ms Oleksandra Pyshna (Astronomical Observatory of Taras Shevchenko National University of Kyiv, Kyiv, Ukraine)

4/26/23, 4:00 PM

GRB 221009A - hyper-luminous, long-duration gamma-ray burst (GRB) detected by Neil Gehrels Swift Observatory on October 9, 2022 and classified as the brightest GRB ever detected. In this work, we are presenting the results of our observations and photometric analysis of GRB221009A at the Kyiv comet station, as a part of international GRANDMA network (Global Rapid Advanced Network Devoted to...

29. The curvature emission model of isolated X-ray pulsar RX J0420.0-5022.

Ms Natia Kevlishvili (Institute of Theoretical Physics, Ilia State University, Tbilisi, Georgia)

4/26/23, 4:15 PM

I construct a non-thermal emission theory, interpreting the observational properties of the isolated pulsar RX J0420.0-5022 in X-rays that is believed to be a thermally emitting isolated neutron star. This neutron star have previously been observed in soft X-rays to have nearly thermal spectra at temperatures , which are thought to arise from the warm neutron star surfaces. It is well-known...

30. Multimessenger Research of Shapley Supercluster

Ms Valentyna Babur (Taras Shevchenko National University of Kyiv, Kyiv, Ukraine)

4/26/23, 4:30 PM

"The Shapley Supercluster is one of the largest and most massive structures in the nearby Universe at the distance of about 200 Mpc, consisting of thousands of galaxies. Multimessenger research has been a powerful tool in understanding the properties and evolution of this structure. The use of multiple messengers, such as electromagnetic radiation, high energy cosmic rays and neutrino, has...