J/A+A/612/A5ivo://CDS.VizieR/J/A+A/612/A5doi:10.26093/cds/vizier.36120005CDSH.E.S.S. CollaborationAbdalla H.Abramowski A.Aharonian F.,Ait Benkhali F.Akhperjanian A.G.Andersson T.Anguner E.O.Arrieta M.,Aubert P.Backes M.Balzer A.Barnard M.Becherini Y.Becker Tjus J.,Berge D.Bernhard S.Bernlohr K.Blackwell R.Bottcher M.Boisson C.,Bolmont J.Bordas P.Bregeon J.Brun F.Brun P.Bryan M.Bulik T.,Capasso M.Carr J.Casanova S.Cerruti M.Chakraborty N.,Chalme-Calvet R.Chaves R.C.G.Chen A.Chevalier J.Chretien M.,Colafrancesco S.Cologna G.Condon B.Conrad J.Cui Y.Davids I.D.,Decock J.Degrange B.Deil C.Devin J.deWilt P.Dirson L.,Djannati-Atai A.Domainko W.Donath A.Drury L.O'C.Dubus G.,Dutson K.Dyks J.Edwards T.Egberts K.Eger P.Ernenwein J.-P.,Eschbach S.Farnier C.Fegan S.Fernandes M.V.Fiasson A.,Fontaine G.Foerster A.Funk S.Fuessling M.Gabici S.Gajdus M.,Gallant Y.A.Garrigoux T.Giavitto G.Giebels B.Glicenstein J.F.,Gottschall D.Goyal A.Grondin M.-H.Hadasch D.Hahn J.Haupt M.,Hawkes J.Heinzelmann G.Henri G.Hermann G.Hervet O.Hinton J.A.,Hofmann W.Hoischen C.Holler M.Horns D.Ivascenko A.,Jacholkowska A.Jamrozy M.Janiak M.Jankowsky D.Jankowsky F.,Jingo M.Jogler T.Jouvin L.Jung-Richardt I.Kastendieck M.A.,Katarzynski K.Katz U.Kerszberg D.Khelifi B.Kieffer M.King J.,Klepser S.Klochkov D.Kluzniak W.Kolitzus D.Komin Nu.Kosack K.,Krakau S.Kraus M.Krayzel F.Krueger P.P.Laffon H.Lamanna G.,Lau J.Lees J.-P.Lefaucheur J.Lefranc V.Lemiere A.,Lemoine-Goumard M.Lenain J.-P.Leser E.Lohse T.Lorentz M.Liu R.,Lopez-Coto R.Lypova I.Marandon V.Marcowith A.Mariaud C.Marx R.,Maurin G.Maxted N.Mayer M.Meintjes P.J.Meyer M.Mitchell A.M.W.,Moderski R.Mohamed M.Mohrmann L.Mora K.Moulin E.Murach T.,de Naurois M.Niederwanger F.Niemiec J.Oakes L.O'Brien P.,Odaka H.Oettl S.Ohm S.Ostrowski M.Oya I.Padovani M.Panter M.,Parsons R.D.Pekeur N.W.Pelletier G.Perennes C.Petrucci P.-O.,Peyaud B.Piel Q.Pita S.Poon H.Prokhorov D.Prokoph H.,Puehlhofer G.Punch M.Quirrenbach A.Raab S.Reimer A.Reimer O.,Renaud M.de los Reyes R.Rieger F.Romoli C.Rosier-Lees S.,Rowell G.Rudak B.Rulten C.B.Sahakian V.Salek D.Sanchez D.A.,Santangelo A.Sasaki M.Schlickeiser R.Schuessler F.Schulz A.,Schwanke U.Schwemmer S.Settimo M.Seyffert A.S.Shafi N.,Shilon I.Simoni R.Sol H.Spanier F.Spengler G.Spies F.,Stawarz L.Steenkamp R.Stegmann C.Stinzing F.Stycz K.Sushch I.,Tavernet J.-P.Tavernier T.Taylor A.M.Terrier R.Tibaldo L.,Tiziani D.Tluczykont M.Trichard C.Tuffs R.Uchiyama Y.,van der Walt D.J.van Eldik C.van Rensburg C.van Soelen B.,Vasileiadis G.Veh J.Venter C.Viana A.Vincent P.Vink J.,Voisin F.Voelk H.J.Vuillaume T.Wadiasingh Z.Wagner S.J.,Wagner P.Wagner R.M.White R.Wierzcholska A.Willmann P.,Woernlein A.Wouters D.Yang R.Zabalza V.Zaborov D.Zacharias M.,Zdziarski A.A.Zech A.Zefi F.Ziegler A.Zywucka N.,Fermi-LAT CollaborationKatsuta J.2018-05-14T09:49:47Z2018-04-09T09:07:50ZCDS support team

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

cds-question@unistra.frThe supernova remnant (SNR) W49B originated from a core-collapse supernova that occurred between one and four thousand years ago, and subsequently evolved into a mixed-morphology remnant, which is interacting with molecular clouds (MC). Gamma-ray observations of SNR-MC associations are a powerful tool to constrain the origin of Galactic cosmic rays, as they can probe the acceleration of hadrons through their interaction with the surrounding medium and subsequent emission of non-thermal photons. We report the detection of a gamma-ray source coincident with W49B at very high energies (VHE; E>100GeV) with the H.E.S.S. Cherenkov telescopes together with a study of the source with five years of Fermi-LAT high-energy gamma-ray (0.06-300GeV) data. The smoothly connected, combined source spectrum, measured from 60MeV to multi-TeV energies, shows two significant spectral breaks at 304+/-20MeV and 8.4_-2.5_^+2.2^GeV; the latter is constrained by the joint fit from the two instruments. The detected spectral features are similar to those observed in several other SNR-MC associations and are found to be indicative of gamma-ray emission produced through neutral-pion decay.2018A&A...612A...5Hhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/612/A5CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/612/A1 : H.E.S.S. Galactic Plane Survey (HESS+, 2018)J/A+A/612/A6 : RX J1713.7-3946 HESS spectrum (HESS+, 2018)J/A+A/612/A7 : Vela Junior (RX J0852.0-4622) HESS image (HESS+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/612/A5https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/612/A5http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/612/A5https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/612/A5https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/612/A5http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/612/A5GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/612/A5/list (Information on fits image)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/612/A5/list?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/612/A5/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/612/A5/list?GETtext/xml+votable180.050000true287.7802939.09307860.0055555555555555566/30616https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/612/A5?format=asciiGamma-raydefaultJ/A+A/612/A5/listInformation on fits imagerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGLONGalactic longitude of centerdegpos.galactic.lonGLATGalactic latitude of center (J2000)degpos.galactic.latNxNumber of pixels along X-axismeta.numberintNyNumber of pixels along Y-axismeta.numberintsizeSize of FITS fileKibytephys.size;meta.fitsintFileNameName of FITS filemeta.id;meta.fitscharTitleTitle of the FITS filemeta.title;meta.fits_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data)degpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data)degpos.eq.decnullableindexed