Lorentz invariance violation search with the Cherenkov Telescope Array Observatory Large-Sized Telescope

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F25%3A00646049" target="_blank" >RIV/67985815:_____/25:00646049 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/25:00646049 RIV/61989592:15310/25:73635274

Result on the web

<a href="https://pos.sissa.it/501/808/pdf" target="_blank" >https://pos.sissa.it/501/808/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.22323/1.501.0808" target="_blank" >10.22323/1.501.0808</a>

Result language

angličtina

Original language name

Lorentz invariance violation search with the Cherenkov Telescope Array Observatory Large-Sized Telescope

Original language description

The fast variability of very-high energy (VHE) sources such as pulsars, gamma rays bursts (GRBs) or flares of active galactic nuclei (AGN) can be used to detect or constrain Lorentz invariance violation (LIV) by measuring lags in the arrival time of VHE photons. However, an important source of uncertainty arises from processes within the source that may induce intrinsic photon delays. Combining observations of different sources allows us to probe higher energy scales when LIV effects become relevant as well as to distinguish LIV-induced lags from intrinsic effects. We present the results of a standardized analysis performed on all AGN observations carried out by the first Large-Sized Telescope (LST-1) of CTAO. This analysis includes a general search of intra-night variability in archive observing nights that show significant excesses for the target candidates. The observing nights selected for LIV searches are then combined together to extract limits to the characteristic energies at which the LIV effect is expected to be significant. Finally, similar analysis have been performed on relevant data from other major imaging atmospheric Cherenkov telescopes, H.E.S.S., MAGIC and VERITAS, in order to combine all the data sets to extract combined limits that constrain one of the LIV effects.n

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10308 - Astronomy (including astrophysics,space science)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Proceedings of Science

ISBN

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ISSN

1824-8039

e-ISSN

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Number of pages

10

Pages from-to

808

Publisher name

Sissa Medilab srl

Place of publication

Trieste

Event location

Ženeva

Event date

Jul 15, 2025

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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