The relentless variability of Mrk 421 from the TeV to the radio
Sign Up to like & getrecommendations! Published in 2021 at "Astronomy and Astrophysics"
DOI: 10.1051/0004-6361/201935557
Abstract: Context. The origin of the γ-ray emission of the blazar Mrk 421 is still a matter of debate. Aims. We used 5.5 years of unbiased observing campaign data, obtained using the FACT telescope and the… read more here.
Keywords: light curves; variability mrk; radio; relentless variability ... See more keywords
Constraints on Lorentz invariance violation from the extraordinary Mrk 421 flare of 2014 using a novel analysis method
Sign Up to like & getrecommendations! Published in 2024 at "Journal of Cosmology and Astroparticle Physics"
DOI: 10.1088/1475-7516/2024/07/044
Abstract: The Lorentz Invariance Violation (LIV), a proposed consequence of certain quantum gravity (QG) scenarios, could instigate an energy-dependent group velocity for ultra-relativistic particles. This energy dependence, although suppressed by the massive QG energy scale E_QG,… read more here.
Keywords: mrk 421; invariance violation; energy; lorentz invariance ... See more keywords
Reconcilement of VHE γ -ray/X-ray correlation studies in Mrk 421 and break-down at high fluxes
Sign Up to like & getrecommendations! Published in 2019 at "Monthly Notices of the Royal Astronomical Society"
DOI: 10.1093/mnras/stz109
Abstract: Multi-wavelength campaigns have been carried out to study the correlation between the very high energy (VHE) $\gamma$-ray and the X-ray emissions in blazars but, no conclusive results have been achieved yet. In this paper, we… read more here.
Keywords: gamma ray; vhe gamma; ray ray; correlation ... See more keywords