J/A+A/711/A83ivo://CDS.VizieR/J/A+A/711/A83CDSCapecchiacci S.Liodakis I.Zhang H.Negro M.Otero-Santos J.2026-07-03T08:57:40Z2026-07-03T09:34:59ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.fractive-galactic-nucleipolarimetryx-ray-sourcesPolarimetric properties of blazars provide key constraints on the acceleration mechanisms powering their relativistic jets, the high-energy emission processes involved, and the composition of the jet itself. We present a multi-band polarimetric study spanning from soft X-rays to gamma-ray energies, considering several bands for current and future missions (0.275keV, 2-8keV, 0.5-10keV, 6-35keV, 0.2-5MeV, and 1-100GeV). Our sample is drawn from the RoboPol Monitoring Program, a statistically complete gamma-ray selected sample including low-, intermediate-, and high-synchrotron-peaked blazars. Using spectral energy distribution fitting performed with the Bjet_MCMC tool, we give predictions on the flux expected for each source in the selected energy bands. We model the polarimetric signatures under three competing emission scenarios: leptonic, hadronic, and hybrid. The detectability of each source is assessed by accounting for the instruments' minimum detectable polarisation (MDP) and by computing the probability of the detection in a blind survey. We show that simultaneous multi-wavelength observations can effectively discriminate between competing emission models due to the difference in the expected polarisation degree (PD). Finally, we derive sensitivity requirements for future gamma-ray polarimetric missions aimed at increasing the number of detectable sources.2026A&A...711A..83Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/711/A83CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/711/A83https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/711/A83http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/711/A83https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/711/A83https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/711/A83http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/711/A83GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapX-raydefaultJ/A+A/711/A83/tableaObservations of Robopol taken into account in this work (Tables A1-A3)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClassClass (1)meta.code.classcharNameSource name (JHHMM+DDMM)meta.id;meta.mainchar4FGL4FGL name (JHHMM.m+DDMM)meta.idcharObs.startStart date of Robopol observations (MJD)dtime.start;obsdoubleObs.endEnd date of Robopol observations (MJD)dtime.end;obsdoubleOptPDOptical PD, median over the observations%stat.fit.paramfloate_OptPDrms uncertainty on OptPD%stat.errorfloatFluxFermi flux (in erg/cm^2^/s)mW.m**-2phot.flux.density;em.gamma.harddoublee_Fluxrms uncertaitny on Fermi flux (erg/cm^2^/s)mW.m**-2stat.error;phot.fluxdoubleSimbadSimbad column added by the CDSmeta.ref.urlcharJ/A+A/711/A83/cycles14Duty cycles of the instruments computed over exposure times of 14 daysrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource name (JHHMM+DDMM)meta.id;meta.maincharModelModel (Hadronic, Leptonic or Hybrid)meta.notecharStokeSATDuty cycle for StokeSATobs.proposal.cyclefloatIXPEDuty cycle for IXPEobs.proposal.cyclefloateXTPDuty cycle for eXTPobs.proposal.cyclefloatEXPODuty cycle for EXPOobs.proposal.cyclefloatCOSIDuty cycle for COSIobs.proposal.cyclefloatJ/A+A/711/A83/cycles28Duty cycles of the instruments computed over exposure times of 28 daysrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameSource name (JHHMM+DDMM)meta.id;meta.maincharModelModel (Hadronic, Leptonic or Hybrid)meta.notecharStokeSATDuty cycle for StokeSATobs.proposal.cyclefloatIXPEDuty cycle for IXPEobs.proposal.cyclefloateXTPDuty cycle for eXTPobs.proposal.cyclefloatEXPODuty cycle for EXPOobs.proposal.cyclefloatCOSIDuty cycle for COSIobs.proposal.cyclefloat