000585373 001__ 585373
000585373 005__ 20230721220652.0
000585373 0247_ $$2INSPIRETeX$$aVERITAS:2023smr
000585373 0247_ $$2inspire$$ainspire:2656721
000585373 0247_ $$2arXiv$$aarXiv:2305.02860
000585373 0247_ $$2datacite_doi$$a10.3204/PUBDB-2023-03521
000585373 037__ $$aPUBDB-2023-03521
000585373 041__ $$aEnglish
000585373 088__ $$2arXiv$$aarXiv:2305.02860
000585373 1001_ $$0P:(DE-H253)PIP1085764$$aAcharyya, A.$$b0$$eCorresponding author
000585373 245__ $$aVERITAS discovery of very high energy gamma-ray emission from S3 1227+25 and multiwavelength observations
000585373 260__ $$c2023
000585373 3367_ $$0PUB:(DE-HGF)25$$2PUB:(DE-HGF)$$aPreprint$$bpreprint$$mpreprint$$s1689926749_647181
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000585373 500__ $$a18 pages, 6 figures. Accepted for publication in the Astrophysical Journal (ApJ)
000585373 520__ $$aWe report the detection of very high energy gamma-ray emission from the blazar S3 1227+25 (VER J1230+253) with the Very Energetic Radiation Imaging Telescope Array System (VERITAS). VERITAS observations of the source were triggered by the detection of a hard-spectrum GeV flare on May 15, 2015 with the Fermi-Large Area Telescope (LAT). A combined five-hour VERITAS exposure on May 16th and May 18th resulted in a strong 13$\sigma$ detection with a differential photon spectral index, $\Gamma$ = 3.8 $\pm$ 0.4, and a flux level at 9% of the Crab Nebula above 120 GeV. This also triggered target of opportunity observations with Swift, optical photometry, polarimetry and radio measurements, also presented in this work, in addition to the VERITAS and Fermi-LAT data. A temporal analysis of the gamma-ray flux during this period finds evidence of a shortest variability timescale of $\tau_{obs}$ = 6.2 $\pm$ 0.9 hours, indicating emission from compact regions within the jet, and the combined gamma-ray spectrum shows no strong evidence of a spectral cut-off. An investigation into correlations between the multiwavelength observations found evidence of optical and gamma-ray correlations, suggesting a single-zone model of emission. Finally, the multiwavelength spectral energy distribution is well described by a simple one-zone leptonic synchrotron self-Compton radiation model.
000585373 536__ $$0G:(DE-HGF)POF4-613$$a613 - Matter and Radiation from the Universe (POF4-613)$$cPOF4-613$$fPOF IV$$x0
000585373 588__ $$aDataset connected to INSPIRE
000585373 650_7 $$2INSPIRE$$agamma ray: VHE
000585373 650_7 $$2INSPIRE$$agamma ray: emission
000585373 650_7 $$2INSPIRE$$agamma ray: flux
000585373 650_7 $$2INSPIRE$$aemission: model
000585373 650_7 $$2INSPIRE$$adetector: imaging
000585373 650_7 $$2INSPIRE$$apolarization: monitoring
000585373 650_7 $$2INSPIRE$$aVERITAS
000585373 650_7 $$2INSPIRE$$aGeV
000585373 650_7 $$2INSPIRE$$aoptical
000585373 650_7 $$2INSPIRE$$acorrelation
000585373 650_7 $$2INSPIRE$$aspectral
000585373 650_7 $$2INSPIRE$$avariability
000585373 650_7 $$2INSPIRE$$apower spectrum
000585373 650_7 $$2INSPIRE$$ablazar
000585373 650_7 $$2INSPIRE$$aphoton
000585373 650_7 $$2INSPIRE$$aspectral energy distribution
000585373 650_7 $$2INSPIRE$$aGLAST
000585373 650_7 $$2INSPIRE$$asynchrotron
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000585373 7001_ $$aAdams, C. B.$$b1
000585373 7001_ $$aArcher, A.$$b2
000585373 7001_ $$00000-0002-3886-3739$$aBangale, P.$$b3
000585373 7001_ $$00000-0003-2098-170X$$aBenbow, W.$$b4
000585373 7001_ $$00000-0002-6208-5244$$aBrill, A.$$b5
000585373 7001_ $$aChristiansen, J. L.$$b6
000585373 7001_ $$aChromey, A. J.$$b7
000585373 7001_ $$00000-0002-1853-863X$$aErrando, M.$$b8
000585373 7001_ $$00000-0002-5068-7344$$aFalcone, A.$$b9
000585373 7001_ $$aFeng, Q.$$b10
000585373 7001_ $$aFinley, J. P.$$b11
000585373 7001_ $$00000-0002-2944-6060$$aFoote, G. M.$$b12
000585373 7001_ $$00000-0002-1067-8558$$aFortson, L.$$b13
000585373 7001_ $$00000-0003-1614-1273$$aFurniss, A.$$b14
000585373 7001_ $$aGallagher, G.$$b15
000585373 7001_ $$00000-0002-0109-4737$$aHanlon, W.$$b16
000585373 7001_ $$aHanna, D.$$b17
000585373 7001_ $$00000-0003-3878-1677$$aHervet, O.$$b18
000585373 7001_ $$aHinrichs, C. E.$$b19
000585373 7001_ $$aHoang, J.$$b20
000585373 7001_ $$00000-0002-6833-0474$$aHolder, J.$$b21
000585373 7001_ $$aJin, W.$$b22
000585373 7001_ $$aJohnson, M. N.$$b23
000585373 7001_ $$00000-0002-3638-0637$$aKaaret, P.$$b24
000585373 7001_ $$aKertzman, M.$$b25
000585373 7001_ $$00000-0003-4785-0101$$aKieda, D.$$b26
000585373 7001_ $$aKleiner, T. K.$$b27
000585373 7001_ $$aKorzoun, N.$$b28
000585373 7001_ $$aKrennrich, F.$$b29
000585373 7001_ $$aLang, M. J.$$b30
000585373 7001_ $$00000-0003-3802-1619$$aLundy, M.$$b31
000585373 7001_ $$0P:(DE-H253)PIP1011664$$aMaier, G.$$b32
000585373 7001_ $$aMcGrath, C. E.$$b33
000585373 7001_ $$00000-0001-7106-8502$$aMillard, M. J.$$b34
000585373 7001_ $$aMillis, J.$$b35
000585373 7001_ $$00000-0001-5937-446X$$aMooney, C. L.$$b36
000585373 7001_ $$00000-0002-1499-2667$$aMoriarty, P.$$b37
000585373 7001_ $$aMukherjee, R.$$b38
000585373 7001_ $$00000-0002-9296-2981$$aO'Brien, S.$$b39
000585373 7001_ $$aOng, R. A.$$b40
000585373 7001_ $$0P:(DE-H253)PIP1010085$$aPohl, M.$$b41
000585373 7001_ $$0P:(DE-H253)PIP1031007$$aPueschel, E.$$b42
000585373 7001_ $$00000-0002-4855-2694$$aQuinn, J.$$b43
000585373 7001_ $$00000-0002-5351-3323$$aRagan, K.$$b44
000585373 7001_ $$aReynolds, P. T.$$b45
000585373 7001_ $$aRibeiro, D.$$b46
000585373 7001_ $$aRoache, E.$$b47
000585373 7001_ $$0P:(DE-H253)PIP1006066$$aSadeh, I.$$b48
000585373 7001_ $$aSadun, A. C.$$b49
000585373 7001_ $$aSaha, L.$$b50
000585373 7001_ $$aSantander, M.$$b51
000585373 7001_ $$aSembroski, G. H.$$b52
000585373 7001_ $$aShang, R.$$b53
000585373 7001_ $$00000-0003-3407-9936$$aSplettstoesser, M.$$b54
000585373 7001_ $$aTalluri, A. Kaushik$$b55
000585373 7001_ $$aTucci, J. V.$$b56
000585373 7001_ $$aVassiliev, V. V.$$b57
000585373 7001_ $$00000-0003-2740-9714$$aWilliams, D. A.$$b58
000585373 7001_ $$aWong, S. L.$$b59
000585373 7001_ $$00000-0002-2024-8199$$aHovatta, Talvikki$$b60
000585373 7001_ $$00000-0001-6158-1708$$aJorstad, Svetlana G.$$b61
000585373 7001_ $$00000-0001-6314-9177$$aKiehlmann, Sebastian$$b62
000585373 7001_ $$00000-0002-0393-0647$$aLähteenmäki, Anne$$b63
000585373 7001_ $$00000-0001-9200-4006$$aLiodakis, Ioannis$$b64
000585373 7001_ $$00000-0001-7396-3332$$aMarscher, Alan P.$$b65
000585373 7001_ $$00000-0002-5491-5244$$aMax-Moerbeck, Walter$$b66
000585373 7001_ $$00000-0001-9152-961X$$aReadhead, Anthony C. S.$$b67
000585373 7001_ $$00000-0001-5704-271X$$aReeves, Rodrigo$$b68
000585373 7001_ $$00000-0002-5083-3663$$aSmith, Paul S.$$b69
000585373 7001_ $$00000-0003-1249-6026$$aTornikoski, Merja$$b70
000585373 7001_ $$0P:(DE-HGF)0$$aVERITAS Collaboration$$b71$$eCollaboration author
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