Synchrotron and Inverse Compton Variability in the BL Lacertae object S5 0716+714

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dc.creatorGiommi, P.
dc.creatorMassaro, E.
dc.creatorChiappetti, L.
dc.creatorFerrara, E. C.
dc.creatorGhisellini, G.
dc.creatorJang, Minhwan
dc.creatorMaesano, M.
dc.creatorMiller, H. R.
dc.creatorMontagni, F.
dc.creatorNesci, R.
dc.creatorPadovani, P.
dc.creatorPerlman, E.
dc.creatorRaiteri, C. M.
dc.creatorSclavi, S.
dc.creatorTagliaferri, G.
dc.creatorTosti, G.
dc.creatorVillata, M.
dc.date1999-09-14
dc.date.accessioned2026-07-07T02:33:16Z
dc.date.available2026-07-07T02:33:16Z
dc.descriptionWe report intensity variations of different spectral components in the BL Lac object S5 0716+714 detected during coordinated BeppoSAX and optical observations in 1996 and 1998. The transition between synchrotron and inverse Compton emission has been clearly detected as sharp X-ray spectral breaks at around 2-3 keV on both occasions. Correlated optical and soft X-ray variability was found during the second BeppoSAX pointing when intensive optical monitoring could be arranged. The hard (Compton) component changed by a factor of 2 between the two observations, but remained stable within each exposure. During events of rapid variability S5 0716+714 showed spectral steepening with intensity, a behaviour rarely observed in BL Lacs. We interpret these findings as the probable consequence of a shift of the synchrotron peak emission from the IR/optical band to higher energies, causing the synchrotron tail to push into the soft X-ray band more and more as the source brightens.
dc.descriptionLaTex, 6 pages, Accepted by A&A
dc.identifierhttps://arxiv.org/abs/astro-ph/9909241
dc.identifierhttp://arxiv.org/abs/astro-ph/9909241
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/14775
dc.subjectAstrophysics
dc.titleSynchrotron and Inverse Compton Variability in the BL Lacertae object S5 0716+714
dc.typetext

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