ABEYSEKARA, A.U.; ARCHER, A.; BENBOW, W.; BIRD, R.; BROSE, R.; BUCHOVECKY, M.; BUCKLEY, J.H.; BUGAEV, V.; CHROMEY, A.J.; CONNOLLY, M.P.; CUI, W.; DANIEL, M.K.; FALCONE, A.; FENG, Q.; FINLEY, J.P.; FORTSON, L.; FURNISS, A.; HÜTTEN, M.; HANNA, D.; HERVET, O.; HOLDER, J.; HUGHES, G.; HUMENSKY, T.B.; JOHNSON, C.A.; KAARET, P.; KAR, P.; KERTZMAN, M.; KIEDA, D.; KRAUSE, M.; KRENNRICH, F.; KUMAR, S.; LANG, M.J.; LIN, T.T.Y.; MCARTHUR, S.; MORIARTY, P.; MUKHERJEE, R.; O'BRIEN, S.; ONG, R.A.; OTTE, A.N.; PARK, N.; PETRASHYK, A.; POHL, M.; PUESCHEL, E.; QUINN, J.; RAGAN, K.; REYNOLDS, P.T.; RICHARDS, G.T.; ROACHE, E.; RULTEN, C.; SADEH, I.; SANTANDER, M.; SEMBROSKI, G.H.; SHAHINYAN, K.; SUSHCH, I.; TYLER, J.; WAKELY, S.P.; WEINSTEIN, A.; WELLS, R.M.; WILCOX, P.; WILHELM, A.; WILLIAMS, D.A.; J WILLIAMSON, T.; ZITZER, B.; ABDOLLAHI, S.; AJELLO, M.; BALDINI, L.; BARBIELLINI, G.; BASTIERI, D.; BELLAZZINI, R.; BERENJI, B.; BISSALDI, E.; BLANDFORD, R.D.; BONINO, R.; BOTTACINI, E.; BRANDT, T.J.; BRUEL, P.; BUEHLER, R.; CAMERON, R.A.; CAPUTO, R.; CARAVEO, P.A.; CASTRO, D.; CAVAZZUTI, E.; CHARLES, E.; CHIARO, G.; CIPRINI, S.; COHEN-TANUGI, Johann; COSTANTIN, D.; CUTINI, S.; D'AMMANDO, F.; DE PALMA, F.; DI LALLA, N.; DI MAURO, M.; DI VENERE, L.; DOMÍNGUEZ, A.; FAVUZZI, C.; FEGAN, S.J.; FRANCKOWIAK, A.; FUKAZAWA, Y.; FUNK, S.; FUSCO, P.; GARGANO, F.; GASPARRINI, D.; GIGLIETTO, N.; GIORDANO, F.; GIROLETTI, M.; GREEN, D.; GRENIER, I.A.; GUILLEMOT, L.; GUIRIEC, S.; HAYS, E.; HEWITT, J.W.; HORAN, D.; JÓHANNESSON, G.; KENSEI, S.; KUSS, M.; LARSSON, S.; LATRONICO, L.; LEMOINE-GOUMARD, M.; LI, J.; LONGO, F.; LOPARCO, F.; LOVELLETTE, M.N.; LUBRANO, P.; MAGILL, J.D.; MALDERA, S.; MAZZIOTTA, M.N.; MCENERY, J.E.; MICHELSON, P.F.; MITTHUMSIRI, W.; MIZUNO, T.; MONZANI, M.E.; MORSELLI, A.; MOSKALENKO, I.V.; NEGRO, M.; NUSS, E.; OJHA, R.; OMODEI, N.; ORIENTI, M.; ORLANDO, E.; PALATIELLO, M.; PALIYA, V.S.; PANEQUE, D.; PERKINS, J.S.; PERSIC, M.; PESCE-ROLLINS, M.; PETROSIAN, V.; PIRON, F.; PORTER, T.A.; PRINCIPE, G.; RAINÒ, S.; RANDO, R.; RANI, B.; RAZZANO, M.; RAZZAQUE, S.; REIMER, A.; REIMER, O.; REPOSEUR, T.; SGRÒ, C.; SISKIND, E.J.; SPANDRE, G.; SPINELLI, P.; SUSON, D.J.; TAJIMA, H.; THAYER, J.B.; THOMPSON, D.J.; TORRES, D.F.; TOSTI, G.; TROJA, E.; VALVERDE, J.; VIANELLO, G.; VOGEL, M.; WOOD, K.; YASSINE, M.; ALFARO, R.; ÁLVAREZ, C.; ÁLVAREZ, J.D.; ARCEO, R.; ARTEAGA-VELÁZQUEZ, J.C.; AVILA ROJAS, D.; AYALA SOLARES, H.A.; BECERRIL, A.; BELMONT-MORENO, E.; BENZVI, S.Y.; BERNAL, A.; BRAUN, J.; BRISBOIS, C.; CABALLERO-MORA, K.S.; CAPISTRÁN, T.; CARRAMIÑANA, A.; CASANOVA, S.; CASTILLO, M.; COTTI, U.; COTZOMI, J.; COUTIÑO DE LEÓN, S.; DE LEÓN, C.; DE LA FUENTE, E.; DICHIARA, S.; DINGUS, B.L.; DUVERNOIS, M.A.; DÍAZ-VÉLEZ, J.C.; ENGEL, K.; ENRIQUEZ-RIVERA, O.; FIORINO, D.W.; FLEISCHHACK, H.; FRAIJA, N.; GARCÍA-GONZÁLEZ, J.A.; GARFIAS, F.; GONZÁLEZ MUÑOZ, A.; GONZÁLEZ, M.M.; GOODMAN, J.A.; HAMPEL-ARIAS, Z.; HARDING, J.P.; HERNANDEZ, S.; HERNANDEZ-ALMADA, A.; HONA, B.; HUEYOTL-ZAHUANTITLA, F.; HUI, C.M.; HÜNTEMEYER, P.; IRIARTE, A.; JARDIN-BLICQ, A.; JOSHI, V.; KAUFMANN, S.; LARA, A.; LAUER, R.J.; LEE, W.H.; LENNARZ, D.; LEÓN VARGAS, H.; LINNEMANN, J.T.; LONGINOTTI, A.L.; LUIS-RAYA, G.; LUNA-GARCÍA, R.; LÓPEZ-COTO, R.; MALONE, K.; MARINELLI, S.S.; MARTINEZ, O.; MARTINEZ-CASTELLANOS, I.; MARTÍNEZ-CASTRO, J.; MARTÍNEZ-HUERTA, H.; MATTHEWS, J.A.; MIRANDA-ROMAGNOLI, P.; MORENO, E.; MOSTAFÁ, M.; NAYERHODA, A.; NELLEN, L.; NEWBOLD, M.; NISA, M.U.; NORIEGA-PAPAQUI, R.; PELAYO, R.; PRETZ, J.; PÉREZ-PÉREZ, E.G.; REN, Z.; RHO, C.D.; RIVIÈRE, C.; ROSA-GONZÁLEZ, D.; ROSENBERG, M.; RUIZ-VELASCO, E.; SALAZAR, H.; SALESA GREUS, F.; SANDOVAL, A.; SCHNEIDER, M.; SEGLAR ARROYO, M.; SINNIS, G.; SMITH, A.J.; SPRINGER, R.W.; SURAJBALI, P.; TABOADA, I.; TIBOLLA, O.; TOLLEFSON, K.; TORRES, I.; UKWATTA, T.N.; VILLASEÑOR, L.; WEISGARBER, T.; WESTERHOFF, S.; WISHER, I.G.; WOOD, J.; YAPICI, T.; YODH, G.; ZEPEDA, A.; ZHOU, H.

doi:10.3847/1538-4357/aade4e

Métadonnées

Afficher la notice complète

Licence d’utilisation du document

Langue

Article de revue

Ce document a été publié dans

Astrophys.J.. 2018, vol. 866, n° 1, p. 24

Résumé en anglais

The High Altitude Water Cherenkov (HAWC) collaboration recently published their 2HWC catalog, listing 39 very high energy (VHE; >100 GeV) gamma-ray sources based on 507 days of observation. Among these, 19 sources are not associated with previously known teraelectronvolt (TeV) gamma-ray sources. We have studied 14 of these sources without known counterparts with VERITAS and Fermi-LAT. VERITAS detected weak gamma-ray emission in the 1 TeV–30 TeV band in the region of DA 495, a pulsar wind nebula coinciding with 2HWC J1953+294, confirming the discovery of the source by HAWC. We did not find any counterpart for the selected 14 new HAWC sources from our analysis of Fermi-LAT data for energies higher than 10 GeV. During the search, we detected gigaelectronvolt (GeV) gamma-ray emission coincident with a known TeV pulsar wind nebula, SNR G54.1+0.3 (VER J1930+188), and a 2HWC source, 2HWC J1930+188. The fluxes for isolated, steady sources in the 2HWC catalog are generally in good agreement with those measured by imaging atmospheric Cherenkov telescopes. However, the VERITAS fluxes for SNR G54.1+0.3, DA 495, and TeV J2032+4130 are lower than those measured by HAWC, and several new HAWC sources are not detected by VERITAS. This is likely due to a change in spectral shape, source extension, or the influence of diffuse emission in the source region.< Réduire

Mots clés en anglais

gamma rays: general

Métadonnées

Licence d’utilisation du document

VERITAS and Fermi-LAT Observations of TeV Gamma-Ray Sources Discovered by HAWC in the 2HWC Catalog

Langue

Ce document a été publié dans

Résumé en anglais

Mots clés en anglais

DOI

Origine

Unités de recherche