Sparse Digital Radio Arrays 2020

Session

Radio astronomy

Mar 25, 2020, 11:15 AM

Conference hall (INR RAS)

8. Mysterious structures observing the view towards the first stars in the Universe

Vibor Jelic (Ruder Boskovic Institute)

3/25/20, 2:00 PM

During my talk I will present the latest results of the LOFAR-EoR experiment and multi-frequency analysis of the observed polarized structures in our Galaxy.

14. LOFAR calibration

Katharine Mulrey (Vrije Universiteit Brussel)

3/25/20, 3:00 PM

6. Calibration of Tunka antennas

Stanislav Malakhov

3/25/20, 3:30 PM

We present status of the antenna calibration for the Tunka-21cm experiment

1. Fast radio bursts: models and observations

Prof. Sergey Popov (Sternberg Astronomical Institute)

3/26/20, 9:30 AM

I review present status of fast radio bursts (FRBs) observations and discuss main theoretical models suggested to explain this phenomenon.
In particular, I focus on the magnetar scenario when the source of energy of FRBs is related to high magnetic field of young neutron stars.

2. Collapsing axion star as source of repeating fast radio bursts

Alexander Panin (INR RAS)

3/26/20, 10:30 AM

Reiterating publicly available data, we discover remarkable features in the frequency spectra of repeating Fast Radio Burst 121102. First, we find that the spectra include regular patterns of equidistant peaks which cannot be explained by scintillation, as the interpeak distance 82 MHz does not depend on frequency. These peaks can be attributed to diffractive gravitational lensing. They appear...