BL Lacs optical light curves & X-ray prop.

DOI

It has become evident that one-zone synchrotron self-Compton models are not always adequate for very high-energy (VHE) gamma-ray-emitting blazars. While two-component models perform better, they are difficult to constrain due to the large number of free parameters. In this work, we make a first attempt at taking into account the observational constraints from very long baseline interferometry (VLBI) data, long-term light curves (radio, optical, and X-rays), and optical polarisation to limit the parameter space for a two-component model and test whether or not it can still reproduce the observed spectral energy distribution (SED) of the blazars. We selected five TeV BL Lac objects based on the availability of VHE gamma-ray and optical polarisation data. We collected constraints for the jet parameters from VLBI observations. We evaluated the contributions of the two components to the optical flux by means of decomposition of long-term radio and optical light curves as well as modelling of the optical polarisation variability of the objects. We selected eight epochs for these five objects based on the variability observed at VHE gamma rays, for which we constructed the SEDs that we then modelled with a two-component model. We found parameter sets which can reproduce the broadband SED of the sources in the framework of two-component models considering all available observational constraints from VLBI observations. Moreover, the constraints obtained from the long-term behaviour of the sources in the lower energy bands could be used to determine the region where the emission in each band originates. Finally, we attempt to use optical polarisation data to shed new light on the behaviour of the two components in the optical band. Our observationally constrained two-component model allows explanation of the entire SED from radio to VHE with two co-located emission regions.

Cone search capability for table J/A+A/640/A132/table1 (General properties of the selected TeV BL Lacs and the correction coefficients used in optical, UV, and X-ray data analysis)

Identifier
DOI http://doi.org/10.26093/cds/vizier.36400132
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/A+A/640/A132
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/640/A132
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/640/A132
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/A+A/640/A132
Provenance
Creator MAGIC Collaboration; Acciari V.A.; Ansoldi S.; Antonelli L.A.,Arbet Engels A.; Baack D.; Babic A.; Banerjee B.; Barres de Almeida U.,Barrio J.A.; Becerra Gonzalez J.; Bednarek W.; Bellizzi L.; Bernardini E.,Berti A.; Besenrieder J.; Bhattacharyya W.; Bigongiari C.; Biland A.,Blanch O.; Bonnoli G.; Bosnjak Z.; Busetto G.; Carosi R.; Ceribella G.,Cerruti M.; Chai Y.; Chilingarian A.; Cikota S.; Colak S.M.; Colin U.,Colombo E.; Contreras J.L.; Cortina J.; Covino S.; D'Amico G.; D'Elia V.,Da Vela P.; Dazzi F.; De Angelis A.; De Lotto B.; Delfino M.; Delgado J.,Depaoli D.; Di Pierro F.; Di Venere L.; Do Souto Espineira E.,Dominis Prester D.; Donini A.; Dorner D.; Doro M.; Elsaesser D.,Fallah Ramazani V.; Fattorini A.; Ferrara G.; Foano L.; Fonseca M.V.,Font L.; Fruck C.; Fukami S.; Garcia Lopez R.J.; Garczarczyk M.,Gasparyan S.; Gaug M.; Giglietto N.; Giordano F.; Gliwny P.; Godinovic N.,Green D.; Hadasch D.; Hahn A.; Herrera J.; Hoang J.; Hrupec D.; Huetten M.,Inada T.; Inoue S.; Ishio K.; Iwamura Y.; Jouvin L.; Kajiwara Y.,Karjalainen M.; Kerszberg D.; Kobayashi Y.; Kubo H.; Kushida J.,Lamastra A.; Lelas D.; Leone F.; Lindfors E.; Lombardi S.; Longo F.,Lopez M.; Lopez-Coto R.; Lopez-Oramas A.; Loporchio S.,Machado de Oliveira Fraga B.; Maggio C.; Majumdar P.; Makariev M.,Mallamaci M.; Maneva G.; Manganaro M.; Mannheim K.; Maraschi L.,Mariotti M.; Martinez M.; Mazin D.; Mender S.; Micanovic S.; Miceli D.,Miener T.; Minev M.; Miranda J.M.; Mirzoyan R.; Molina E.; Moralejo A.,Morcuende D.; Moreno V.; Moretti E.; Munar-Adrover P.; Neustroev V.,Nigro C.; Nilsson K.; Ninci D.; Nishijima K.; Noda K.; Nogues L.,Nozaki S.; Ohtani Y.; Oka T.; Otero-Santos J.; Palatiello M.; Paneque D.,Paoletti R.; Paredes J.M.; Pavletic L.; Penil P.; Peresano M.; Persic M.,Prada Moroni P.G.; Prandini E.; Puljak I.; Rhode W.; Ribo M.; Rico J.,Righi C.; Rugliancich A.; Saha L.; Sahakyan N.; Saito T.; Sakurai S.,Satalecka K.; Schleicher B.; Schmidt K.; Schweizer T.; Sitarek J.,Snidaric I.; Sobczynska D.; Spolon A.; Stamerra A.; Strom D.; Strzys M.,Suda Y.; Suric T.; Takahashi M.; Tavecchio F.; Temnikov P.; Terzic T.,Teshima M.; Torres-Alba N.; Tosti L.; van Scherpenberg J.; Vanzo G.,Vazquez Acosta M.; Ventura S.; Verguilov V.; Vigorito C.F.; Vitale V.,Vovk I.; Will M.; Zaric D.; Nievas-Rosillo M.; Arcaro C.; D'Ammando F.,de Palma F.; Hodges M.; Hovatta T.; Kiehlmann S.; Max-Moerbeck W.,Readhead A.C.S.; Reeves R.; Takalo L.; Reinthal R.; Jormanainen J.,Wierda F.; Wagner S.M.; Berdyugin A.; Nabizadeh A.; Talebpour Sheshvan N.,Oksanen A.; Bachev R.; Strigachev A.; Kehusmaa P.
Publisher CDS
Publication Year 2020
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Cosmology; Galactic and extragalactic Astronomy; Natural Sciences; Observational Astronomy; Physics