Fractional variability—a tool to study blazar variability

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dc.contributor.authorSchleicher, Bernd
dc.contributor.authorArbet-Engels, Axel
dc.contributor.authorBaack, Dominik
dc.contributor.authorBalbo, Matteo
dc.contributor.authorBiland, Adrian
dc.contributor.authorBlank, Michael
dc.contributor.authorBretz, Thomas
dc.contributor.authorBruegge, Kai
dc.contributor.authorBulinski, Michael
dc.contributor.authorBuss, Jens
dc.contributor.authorDoerr, Manuel
dc.contributor.authorDorner, Daniela
dc.contributor.authorElsaesser, Dominik
dc.contributor.authorGrischagin, Sergej
dc.contributor.authorHildebrand, Dorothee
dc.contributor.authorLinhoff, Lena
dc.contributor.authorMannheim, Karl
dc.contributor.authorMueller, Sebastian Achim
dc.contributor.authorNeise, Dominik
dc.contributor.authorNeronov, Andrii
dc.contributor.authorNoethe, Maximilian
dc.contributor.authorParavac, Aleksander
dc.contributor.authorRhode, Wolfgang
dc.contributor.authorSchulz, Florian
dc.contributor.authorSedlaczek, Kevin
dc.contributor.authorShukla, Amit
dc.contributor.authorSliusar, Vitalii
dc.contributor.authorWillert, Elan von
dc.contributor.authorWalter, Roland
dc.date.accessioned2019-10-01T08:46:28Z
dc.date.available2019-10-01T08:46:28Z
dc.date.issued2019-05-30
dc.description.abstractActive Galactic Nuclei emit radiation over the whole electromagnetic spectrum up to TeV energies. Blazars are one subtype with their jets pointing towards the observer. One of their typical features is extreme variability on timescales, from minutes to years. The fractional variability is an often used parameter for investigating the degree of variability of a light curve. Different detection methods and sensitivities of the instruments result in differently binned data and light curves with gaps. As they can influence the physics interpretation of the broadband variability, the effects of these differences on the fractional variability need to be studied. In this paper, we study the systematic effects of completeness in time coverage and the sampling rate. Using public data from instruments monitoring blazars in various energy ranges, we study the variability of the bright TeV blazars Mrk 421 and Mrk 501 over the electromagnetic spectrum, taking into account the systematic effects, and compare our findings with previous results. Especially in the TeV range, the fractional variability is higher than in previous studies, which can be explained by the much longer (seven years compared to few weeks) and more complete data sample.en
dc.identifier.urihttp://hdl.handle.net/2003/38251
dc.identifier.urihttp://dx.doi.org/10.17877/DE290R-20221
dc.language.isoende
dc.relation.ispartofseriesGalaxies;7(2)
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectBlazarsen
dc.subjectVariabilityen
dc.subjectFractional variabilityen
dc.subjectActive galactic nucleien
dc.subject.ddc530
dc.subject.rswkBlazarde
dc.subject.rswkVariabilitätde
dc.subject.rswkAktiver galaktischer Kernde
dc.titleFractional variability—a tool to study blazar variabilityen
dc.typeTextde
dc.type.publicationtypearticlede
dcterms.accessRightsopen access
eldorado.secondarypublicationtruede
eldorado.secondarypublication.primarycitationSchleicher, B.; Arbet-Engels, A.; Baack, D.; Balbo, M.; Biland, A.; Blank, M.; Bretz, T.; Bruegge, K.; Bulinski, M.; Buss, J.; Doerr, M.; Dorner, D.; Elsaesser, D.; Grischagin, S.; Hildebrand, D.; Linhoff, L.; Mannheim, K.; Mueller, S.A.; Neise, D.; Neronov, A.; Noethe, M.; Paravac, A.; Rhode, W.; Schulz, F.; Sedlaczek, K.; Shukla, A.; Sliusar, V.; Willert, E.V.; Walter, R. Fractional Variability—A Tool to Study Blazar Variability. Galaxies 2019, 7, 62.de
eldorado.secondarypublication.primaryidentifierdoi:10.3390/galaxies7020062de

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