Artykuł w czasopiśmie
Brak miniatury
Licencja
 

Searches for gamma-ray lines and 'pure WIMP' spectra from Dark Matter annihilations in dwarf galaxies with H.E.S.S.

Uproszczony widok
dc.abstract.enDwarf spheroidal galaxies are among the most promising targets for detecting signals of Dark Matter (DM) annihilations. The H.E.S.S. experiment has observed five of these systems for a total of about 130 hours. The data are re-analyzed here, and, in the absence of any detected signals, are interpreted in terms of limits on the DM annihilation cross section. Two scenarios are considered: i) DM annihilation into mono-energetic gamma-rays and ii) DM in the form of pure WIMP multiplets that, annihilating into all electroweak bosons, produce a distinctive gamma-ray spectral shape with a high-energy peak at the DM mass and a lower-energy continuum. For case i), upper limits at 95% confidence level of about langle σ v rangle lesssim 3 × 10<SUP>-25</SUP> cm<SUP>3</SUP> s<SUP>-1</SUP> are obtained in the mass range of 400 GeV to 1 TeV. For case ii), the full spectral shape of the models is used and several excluded regions are identified, but the thermal masses of the candidates are not robustly ruled out.
dc.affiliationUniwersytet Warszawski
dc.contributor.authorBulik, Tomasz
dc.contributor.authorAbdalla, H.
dc.contributor.authorAharonian, F.
dc.contributor.authorBenkhali, F. Ait
dc.contributor.authorAngüner, E. O.
dc.contributor.authorArakawa, M.
dc.contributor.authorArcaro, C.
dc.contributor.authorArmand, C.
dc.contributor.authorArrieta, M.
dc.contributor.authorBackes, M.
dc.contributor.authorBarnard, M.
dc.contributor.authorBecherini, Y.
dc.contributor.authorTjus, J. Becker
dc.contributor.authorBerge, D.
dc.contributor.authorBernhard, S.
dc.contributor.authorBernlöhr, K.
dc.contributor.authorBlackwell, R.
dc.contributor.authorBöttcher, M.
dc.contributor.authorBoisson, C.
dc.contributor.authorBolmont, J.
dc.contributor.authorBonnefoy, S.
dc.contributor.authorBordas, P.
dc.contributor.authorBregeon, J.
dc.contributor.authorBrun, F.
dc.contributor.authorBrun, P.
dc.contributor.authorBryan, M.
dc.contributor.authorBüchele, M.
dc.contributor.authorBylund, T.
dc.contributor.authorCapasso, M.
dc.contributor.authorCaroff, S.
dc.contributor.authorCarosi, A.
dc.contributor.authorCasanova, S.
dc.contributor.authorCerruti, M.
dc.contributor.authorChakraborty, N.
dc.contributor.authorChandra, S.
dc.contributor.authorChaves, R. C. G.
dc.contributor.authorChen, A.
dc.contributor.authorColafrancesco, S.
dc.contributor.authorCondon, B.
dc.contributor.authorDavids, I. D.
dc.contributor.authorDeil, C.
dc.contributor.authorDevin, J.
dc.contributor.authordeWilt, P.
dc.contributor.authorDirson, L.
dc.contributor.authorDjannati-Ataï, A.
dc.contributor.authorDmytriiev, A.
dc.contributor.authorDonath, A.
dc.contributor.authorDoroshenko, V.
dc.contributor.authorDrury, D. O.'C
dc.contributor.authorDyks, J.
dc.contributor.authorEgberts, K.
dc.contributor.authorEmery, G.
dc.contributor.authorErnenwein, J. -P.
dc.contributor.authorEschbach, S.
dc.contributor.authorFegan, S.
dc.contributor.authorFiasson, A.
dc.contributor.authorFontaine, G.
dc.contributor.authorFunk, S.
dc.contributor.authorFüßling, M.
dc.contributor.authorGabici, S.
dc.contributor.authorGallant, Y. A.
dc.contributor.authorGaté, F.
dc.contributor.authorGiavitto, G.
dc.contributor.authorGlawion, D.
dc.contributor.authorGlicenstein, J. F.
dc.contributor.authorGottschall, D.
dc.contributor.authorGrondin, M. -H.
dc.contributor.authorHahn, J.
dc.contributor.authorHaupt, M.
dc.contributor.authorHeinzelmann, G.
dc.contributor.authorHenri, G.
dc.contributor.authorHermann, G.
dc.contributor.authorHinton, J. A.
dc.contributor.authorHofmann, W.
dc.contributor.authorHoischen, C.
dc.contributor.authorHolch, T. L.
dc.contributor.authorHoller, M.
dc.contributor.authorHorns, D.
dc.contributor.authorHuber, D.
dc.contributor.authorIwasaki, H.
dc.contributor.authorJacholkowska, A.
dc.contributor.authorJamrozy, M.
dc.contributor.authorJankowsky, D.
dc.contributor.authorJankowsky, F.
dc.contributor.authorJouvin, L.
dc.contributor.authorJung-Richardt, I.
dc.contributor.authorKastendieck, M. A.
dc.contributor.authorKatarzyński, K.
dc.contributor.authorKatsuragawa, M.
dc.contributor.authorKatz, U.
dc.contributor.authorKerszberg, D.
dc.contributor.authorKhangulyan, D.
dc.contributor.authorKhélifi, B.
dc.contributor.authorKing, J.
dc.contributor.authorKlepser, S.
dc.contributor.authorKluźniak, W.
dc.contributor.authorKomin, Nu.
dc.contributor.authorKosack, K.
dc.contributor.authorKrakau, S.
dc.contributor.authorKraus, M.
dc.contributor.authorKrüger, P. P.
dc.contributor.authorLamanna, G.
dc.contributor.authorLau, J.
dc.contributor.authorLefaucheur, J.
dc.contributor.authorLemière, A.
dc.contributor.authorLemoine-Goumard, M.
dc.contributor.authorLenain, J. -P.
dc.contributor.authorLeser, E.
dc.contributor.authorLohse, T.
dc.contributor.authorLorentz, M.
dc.contributor.authorLópez-Coto, R.
dc.contributor.authorLypova, I.
dc.contributor.authorMalyshev, D.
dc.contributor.authorMarandon, V.
dc.contributor.authorMarcowith, A.
dc.contributor.authorMariaud, C.
dc.contributor.authorMartí-Devesa, G.
dc.contributor.authorMarx, R.
dc.contributor.authorMaurin, G.
dc.contributor.authorMeintjes, P. J.
dc.contributor.authorMitchell, A. M. W.
dc.contributor.authorModerski, R.
dc.contributor.authorMohamed, M.
dc.contributor.authorMohrmann, L.
dc.contributor.authorMoulin, E.
dc.contributor.authorMurach, T.
dc.contributor.authorNakashima, S.
dc.contributor.authorNaurois, M. de
dc.contributor.authorNdiyavala, H.
dc.contributor.authorNiederwanger, F.
dc.contributor.authorNiemiec, J.
dc.contributor.authorOakes, L.
dc.contributor.authorO'Brien, P.
dc.contributor.authorOdaka, H.
dc.contributor.authorOhm, S.
dc.contributor.authorOstrowski, M.
dc.contributor.authorOya, I.
dc.contributor.authorPadovani, M.
dc.contributor.authorPanter, M.
dc.contributor.authorParsons, R. D.
dc.contributor.authorPerennes, C.
dc.contributor.authorPetrucci, P. -O.
dc.contributor.authorPeyaud, B.
dc.contributor.authorPiel, Q.
dc.contributor.authorPita, S.
dc.contributor.authorPoireau, V.
dc.contributor.authorNoel, A. Priyana
dc.contributor.authorProkhorov, D. A.
dc.contributor.authorProkoph, H.
dc.contributor.authorPühlhofer, G.
dc.contributor.authorPunch, M.
dc.contributor.authorQuirrenbach, A.
dc.contributor.authorRaab, S.
dc.contributor.authorRauth, R.
dc.contributor.authorReimer, A.
dc.contributor.authorReimer, O.
dc.contributor.authorRenaud, M.
dc.contributor.authorRieger, F.
dc.contributor.authorRinchiuso, L.
dc.contributor.authorRomoli, C.
dc.contributor.authorRowell, G.
dc.contributor.authorRudak, B.
dc.contributor.authorRuiz-Velasco, E.
dc.contributor.authorSahakian, V.
dc.contributor.authorSaito, S.
dc.contributor.authorSanchez, D. A.
dc.contributor.authorSantangelo, A.
dc.contributor.authorSasaki, M.
dc.contributor.authorSchlickeiser, R.
dc.contributor.authorSchüssler, F.
dc.contributor.authorSchulz, A.
dc.contributor.authorSchwanke, U.
dc.contributor.authorSchwemmer, S.
dc.contributor.authorSeglar-Arroyo, M.
dc.contributor.authorSenniappan, M.
dc.contributor.authorSeyffert, A. S.
dc.contributor.authorShafi, N.
dc.contributor.authorShilon, I.
dc.contributor.authorShiningayamwe, K.
dc.contributor.authorSimoni, R.
dc.contributor.authorSinha, A.
dc.contributor.authorSol, H.
dc.contributor.authorSpanier, F.
dc.contributor.authorSpecovius, A.
dc.contributor.authorSpir-Jacob, M.
dc.contributor.authorStawarz, Ł.
dc.contributor.authorSteenkamp, R.
dc.contributor.authorStegmann, C.
dc.contributor.authorSteppa, C.
dc.contributor.authorTakahashi, T.
dc.contributor.authorTavernet, J. -P.
dc.contributor.authorTavernier, T.
dc.contributor.authorTaylor, A. M.
dc.contributor.authorTerrier, R.
dc.contributor.authorTibaldo, L.
dc.contributor.authorTiziani, D.
dc.contributor.authorTluczykont, M.
dc.contributor.authorTrichard, C.
dc.contributor.authorTsirou, M.
dc.contributor.authorTsuji, N.
dc.contributor.authorTuffs, R.
dc.contributor.authorUchiyama, Y.
dc.contributor.authorWalt, D. J. van der
dc.contributor.authorEldik, C. van
dc.contributor.authorRensburg, C. van
dc.contributor.authorSoelen, B. van
dc.contributor.authorVasileiadis, G.
dc.contributor.authorVeh, J.
dc.contributor.authorVenter, C.
dc.contributor.authorViana, A.
dc.contributor.authorVincent, P.
dc.contributor.authorVink, J.
dc.contributor.authorVoisin, F.
dc.contributor.authorVölk, H. J.
dc.contributor.authorVuillaume, T.
dc.contributor.authorWadiasingh, Z.
dc.contributor.authorWagner, S. J.
dc.contributor.authorWagner, R. M.
dc.contributor.authorWhite, R.
dc.contributor.authorWierzcholska, A.
dc.contributor.authorYang, R.
dc.contributor.authorZaborov, D.
dc.contributor.authorZacharias, M.
dc.contributor.authorZanin, R.
dc.contributor.authorZdziarski, A. A.
dc.contributor.authorZech, A.
dc.contributor.authorZefi, F.
dc.contributor.authorZiegler, A.
dc.contributor.authorZorn, J.
dc.contributor.authorŻywucka, N.
dc.contributor.authorCirelli, M.
dc.contributor.authorPanci, P.
dc.contributor.authorSala, F.
dc.contributor.authorSilk, J.
dc.contributor.authorTaoso, M.
dc.date.accessioned2024-01-25T19:56:14Z
dc.date.available2024-01-25T19:56:14Z
dc.date.copyright2018-10-01
dc.date.issued2018
dc.description.accesstimeBEFORE_PUBLICATION
dc.description.financeNie dotyczy
dc.description.number11
dc.description.versionORIGINAL_AUTHOR
dc.description.volume2018
dc.identifier.doi10.1088/1475-7516/2018/11/037
dc.identifier.issn1475-7516
dc.identifier.urihttps://repozytorium.uw.edu.pl//handle/item/119101
dc.identifier.weblinkhttp://adsabs.harvard.edu/abs/2018JCAP...11..037A
dc.languageeng
dc.pbn.affiliationastronomy
dc.relation.ispartofJournal of Cosmology and Astroparticle Physics
dc.relation.pages037
dc.rightsOther
dc.sciencecloudnosend
dc.titleSearches for gamma-ray lines and 'pure WIMP' spectra from Dark Matter annihilations in dwarf galaxies with H.E.S.S.
dc.typeJournalArticle
dspace.entity.typePublication