Ponente
Descripción
In 2019, the first Large-Sized Telescope (LST-1) of the Cherenkov Telescope Array Observatory (CTAO) for the Northern Hemisphere array site started observations next to the two MAGIC telescopes at the Roque de los Muchachos Observatory in La Palma, Canary Islands. Since 2020 an increasing number of joint observations involving all three telescopes have been carried out. Joint MAGIC+LST-1 observations show a clear improved performance compared to MAGIC or LST-1 alone: indeed, the increase in sensitivity allows for the detection of about 30% weaker sources with respect to the sole MAGIC observation.
To analyze data from these joint observations, a dedicated analysis pipeline, magic-cta-pipe, has been developed. This software looks for MAGIC events which are coincident with LST-1 events, using their timestamps; then, it uses random forests trained on Monte Carlo simulations to reconstruct, for these events, the main properties of the primary: energy, direction and particle type (gamma or hadron). Given the large volume of data collected since 2020 and the complexity of the joint analysis in itself, significant effort has been directed towards automation of the low-level data selection and of the generation of high-level data products, from which physical results can be easily retrieved. This automation has already been used to process archival data that are actively being used to study gamma-ray emission from numerous astrophysical sources.
We present the status of the joint pipeline and some selected scientific results obtained with it.
