SST-1M observation of Markarian 421

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F25%3A00645055" target="_blank" >RIV/67985815:_____/25:00645055 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/25:00645055 RIV/61989592:15310/25:73633795

Výsledek na webu

<a href="https://pos.sissa.it/501/776/pdf" target="_blank" >https://pos.sissa.it/501/776/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.22323/1.501.0776" target="_blank" >10.22323/1.501.0776</a>

Jazyk výsledku

angličtina

Název v původním jazyce

SST-1M observation of Markarian 421

Popis výsledku v původním jazyce

Markarian 421 (Mrk 421) is the closest and one of the brightest high-frequency peaked blazars, located at a redshift of z = 0.031. It is a strong source of gamma rays, and its broadband emission has been extensively studied over the years through multi-wavelength observations. Mrk 421 has been the target of an observational campaign from January to May 2024, with 23 nights of observation conducted by the SST-1M telescopes – two single-mirror, small-size Cherenkov telescopes at the Ondřejov Observatory, Czech Republic. These telescopes operate in mono and stereoscopic modes, utilizing the imaging atmospheric Cherenkov technique to detect very high-energy gamma rays in the 1–300 TeV energy range. Using about 32.92 hours of data collected by the telescopes in stereo mode, we find that the gamma-ray spectrum above 1 TeV is well described by a power-law function with an index of 3.24 ± 0.26. In this work, we present our recent SST-1M stereo observations, data analysis, and the results of preliminary physical modeling of Mrk 421’s emission mechanisms.

Název v anglickém jazyce

SST-1M observation of Markarian 421

Popis výsledku anglicky

Markarian 421 (Mrk 421) is the closest and one of the brightest high-frequency peaked blazars, located at a redshift of z = 0.031. It is a strong source of gamma rays, and its broadband emission has been extensively studied over the years through multi-wavelength observations. Mrk 421 has been the target of an observational campaign from January to May 2024, with 23 nights of observation conducted by the SST-1M telescopes – two single-mirror, small-size Cherenkov telescopes at the Ondřejov Observatory, Czech Republic. These telescopes operate in mono and stereoscopic modes, utilizing the imaging atmospheric Cherenkov technique to detect very high-energy gamma rays in the 1–300 TeV energy range. Using about 32.92 hours of data collected by the telescopes in stereo mode, we find that the gamma-ray spectrum above 1 TeV is well described by a power-law function with an index of 3.24 ± 0.26. In this work, we present our recent SST-1M stereo observations, data analysis, and the results of preliminary physical modeling of Mrk 421’s emission mechanisms.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of Science

ISBN

—

ISSN

1824-8039

e-ISSN

—

Počet stran výsledku

9

Strana od-do

776

Název nakladatele

Sissa Medilab srl

Místo vydání

Trieste

Místo konání akce

Ženeva

Datum konání akce

15. 7. 2025

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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