Speaker
Description
The Large-Sized Telescopes (LSTs) are an important part of the forthcoming Cherenkov Telescope Array Observatory (CTAO), the future cornerstone of very high-energy gamma-ray astronomy. The first LST, LST-1, was inaugurated in late 2018 on La Palma, Canary Islands, began regular gamma-ray observations in November 2019 and has so far collected more than 2000 hours of observations. The LST-1 sensitivity was assessed with 48 hours of Crab Nebula observations, which show that the performance closely matches the expectation obtained with Monte Carlo simulations.
In this talk, we will highlight key scientific achievements by LST-1 over recent years. These include the detection of several flares of active galactic nuclei, like the detection of flaring activities of the blazar BL Lac, which prompted the first Astronomical Telegrams from the CTAO era, the radio galaxy NGC 1275, and notably, the first high-energy detection of the distant flat spectrum radio quasar OP 313 (z=0.997). The current research program also includes studies of pulsars and their nebula, in particular the Geminga pulsar, as well as studies of extended Galactic sources and the pursuit of gamma-ray emissions from gamma-ray bursts. These observations not only deepen our understanding of cosmic phenomena but also serve as crucial tools for fundamental physics research, including the search for axion-like particles, dark matter, and tests for violations of Lorentz invariance.
Finally, we will share the progress on the construction of additional LSTs as well as further prospects for the core science project of the LST collaboration, including but not limited to additional AGN observations and follow-up programs of various transient phenomena.
Details
Jelena Strišković, PhD candidate, Josip Juraj Strossmayer University of Osijek - Department of Physics, Croatia, https://www.fizika.unios.hr/
| Internet talk | No |
|---|---|
| Is this an abstract from experimental collaboration? | Yes |
| Name of experiment and experimental site | LST, https://www.lst1.iac.es/ |
| Is the speaker for that presentation defined? | Yes |
