Institute of Astronomy

ContactPiwnice k. Torunia, 87-148 Łysomice
tel.: +48 56 611 30 10
fax: +48 56 611 30 09

General Seminar

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General Seminar takes place every Monday at 11.15 in Piwnice, radioastronomy seminar room.
Remote participation via the BigBlueButton (BBB).

27 May 2024

“Astronomical and Engineering Developments Through Establishing Thai National Radio Astronomy Observatory at NARIT”

dr Koichiro Sugiyama (Thai National Radio Astronomy Observatory at the National Astronomical Research Institute of Thailand (NARIT))

The National Astronomical Research Institute of Thailand (NARIT: Public Organization) initiated a national flagship project in 2017 with the empyreal goal of capacity building through the construction of national radio telescopes for radio astronomy and geodesy. To achieve this, NARIT has established the Thai National Radio Astronomy Observatory (TNRO), in Chiangmai, the northern part of Thailand. At this observatory, two radio telescopes have been constructed: one is a 40-m Thai National Radio Telescope (TNRT) in collaboration with Yebes Observatory, MPIfR, and JBCA, and another one is a 13-m VGOS radio telescope as its co-location in collaboration with SHAO. The 40-m TNRT is the largest telescope for radio astronomy in South-East Asia. Its flexible operation with a wide-coverage of observable frequencies 0.3-115 GHz will allow us to uniquely contribute to the time-domain astronomy as well as carry out unbiased surveys for a wide variety of science research fields, which were published in a white paper (accessible via QR code in the figure). Moreover, within the framework of collaboration with VLBI arrays in the world, these TNRT and VGOS telescopes will drastically improve the imaging quality and performances based on its unique geographical location, for both radio astronomy and geodetic VLBI studies.
In this talk, we will provide an overview of these activities in the TNRO with the 1st CfP of the TNRT L-band as the 1st step for scientifically launching (accessible via QR code in the figure) and demonstrate simulations how these TNRO telescopes improve VLBI imaging quality and performances due to their unique geographical location. In addition, as well as introducing other essential facilities and activities in NARIT briefly, we will present future expandability of the TNRO through constructing other telescopes and installing a VLBI data correlator, resulting in establishment of regional VLBI networks in Thailand and South-East Asia.

3 June 2024

“Interstellar vagabonds in the Solar System”

dr Michał Drahus (Astronomical Observatory, Faculty of Physics, Astronomy and Applied Computer Science, Jagiellonian University, Kraków, Poland)

The first-known interstellar minor bodies 1I/’Oumuamua and 2I/Borisov are precious to science because, unlike millions of comets and asteroids that formed in our Solar System, they originate from distant planetary systems. The detection of these objects as they passed through the Solar System has opened a new chapter in planetary exploration, creating an unprecedented opportunity to study samples of other planetary systems from up close with the standard tools and techniques of solar system astronomy. I will discuss what we have learned and what we still don’t know about these first messengers, what they tell us about our own and other planetary systems, and what the future of this area of research looks like.

10 June 2024

“Quick Ultra-Violet Kilonova surveyor”

prof. Norbert Werner (Department of Theoretical Physics and Astrophysics, Masaryk University, Brno, Czech Republic)

After briefly summarising the results of the gamma-ray burst detectors on the GRBAlpha and VZLUSAT-2 CubeSats, I will present the status and summarise the science case of the Quick Ultra-Violet Kilonova surveyor—QUVIK mission. QUVIK is an ultra-violet (UV) space telescope on an approximately 130 kg small satellite with a moderately fast re-pointing capability and a real-time alert communication system, approved for a Czech national space mission. The satellite, which is expected to launch in five years, will provide key follow-up capabilities to increase the discovery potential of gravitational wave observatories and future wide-field multi-wavelength surveys. The primary objective of the mission is the measurement of the UV brightness evolution of kilonovae, resulting from mergers of neutron stars, to distinguish between different explosion scenarios. The mission, which is designed to be complementary to the Ultraviolet Transient Astronomy Satellite—ULTRASAT, will also provide unique follow-up capabilities for other transients both in the near- and far-UV bands. Between the observations of transient sources, the satellite will perform observations of other targets of interest for the scientific community, such as stars, stellar systems, and galactic nuclei.

24 June 2024

prof. Markus Boettcher (Centre for Space Research, North-West University, Potchefstroom, South Africa)