LST-1 observations of an enormous flare of BL Lacertae in 2021
Seiya NozakiKatsuaki AsanoJuan EscuderoGabriel EmeryChaitanya Priyadarshi (on behalf of the CTA-LST project)
Seiya NozakiKatsuaki AsanoJuan EscuderoGabriel EmeryChaitanya Priyadarshi (on behalf of the CTA-LST project)
Sep 2023
0被引用
0笔记
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摘要原文
The first prototype of LST (LST-1) for the Cherenkov Telescope Array has been in commissioning phase since 2018 and already started scientific observations with the low energy threshold around a few tens of GeV. In 2021, LST-1 observed BL Lac following the alerts based on multi-wavelength observations and detected prominent gamma-ray flares. In addition to the daily flux variability, LST-1 also detected sub-hour-scale intra-night variability reaching 3-4 times higher than the gamma-ray flux from the Crab Nebula above 100 GeV. In this proceeding, we will report the analysis results of LST-1 observations of BL Lac in 2021, especially focusing on flux variability.
