ELFT HÍRADÓ

[vidakris AT konkoly.hu]

Szemináriumi meghívó / Invitation to a seminar
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CSFK CSI SZEMINÁRIUM / KONKOLY OBSERVATORY SEMINAR

Date: Apr 06, 2023 (Thursday) 14:00


Jakub Řípa (Masaryk University, Brno, Czech Republic): GRBAlpha and VZLUSAT-2 
CubeSats Observing Gamma-Ray Transients

I will present the detector performance and science results from GRBAlpha, a 
1U CubeSat mission, which is a technological pathfinder to a future 
constellation of nanosatellites monitoring gamma-ray bursts (GRBs) called 
CAMELOT. GRBAlpha was launched in March 2021 and operates on a 550km altitude 
sun-synchronous orbit. GRBAlpha has already detected 42 transients including 
GRBs (long and short), flashes from soft-gamma repeater SGR 1935+2154 and 
solar flares. Recently, it has detected extraordinarily bright GRB 221009A, 
which was the most intense GRB ever recorded in the 55 years history of GRB 
science. Two years after the launch, the detector performance is good and the 
degradation of the SiPM photon counters remains at an acceptable level. The 
same detector system, but double in size, was launched in January 2022 on 
VZLUSAT-2 (3U CubeSat) and it has also detected many GRBs, activity of SGR 
1935+2154 and solar flares. This proves that nanosatellites can be used for 
routine detection o
 f gamma-ray transients.


The seminar will be held live in the Detre hall with audience, but also 
streamed online via Zoom. If you are unable to attend the presentation in 
person, you can join us via this link
https://us06web.zoom.us/j/82806911982?pwd=SVZpT0syQ1J6dHBvSkF4N2dXNEQ0dz09
or the meeting ID: 828 0691 1982 and passcode: 206265



Everyone is welcome!

Krisztián Vida, Ramon Brasser
organizers
https://konkoly.hu/szeminar/szeminarium.shtml