Show simple item record

dc.contributor.authorConnolly, M.P.
dc.contributor.authorGillanders, Gary
dc.contributor.authorMoriarty, P.
dc.contributor.authorLang, Mark
dc.identifier.citationAliu, E,Archambault, S,Archer, A,Aune, T,Barnacka, A,Beilicke, M,Benbow, W,Bird, R,Buckley, JH,Bugaev, V,Byrum, K,Cardenzana, JV,Cerruti, M,Chen, X,Ciupik, L,Connolly, MP,Cui, W,Dickinson, HJ,Dumm, J,Eisch, JD,Errando, M,Falcone, A,Feng, Q,Finley, JP,Fleischhack, H,Fortin, P,Fortson, L,Furniss, A,Gillanders, GH,Griffin, S,Griffiths, ST,Grube, J,Gyuk, G,Kansson, NH,Hanna, D,Holder, J,Humensky, TB,Johnson, CA,Kaaret, P,Kar, P,Kertzman, M,Kieda, D,Krennrich, F,Kumar, S,Lang, MJ,Lyutikov, M,Madhavan, AS,Maier, G,McArthur, S,McCann, A,Meagher, K,Millis, J,Moriarty, P,Mukherjee, R,Nieto, D,de Bhroithe, AO,Ong, RA,Otte, AN,Park, N,Pohl, M,Popkow, A,Prokoph, H,Pueschel, E,Quinn, J,Ragan, K,Reyes, LC,Reynolds, PT,Richards, GT,Roache, E,Santander, M,Sembroski, GH,Shahinyan, K,Smith, AW,Staszak, D,T (2015) 'A SEARCH FOR PULSATIONS FROM GEMINGA ABOVE 100 GeV WITH VERITAS'. Astrophysical Journal, 800 .en_IE
dc.description.abstractWe present the results of 71.6 hr of observations of the Geminga pulsar (PSR J0633+1746) with the VERITAS very-high-energy gamma-ray telescope array. Data taken with VERITAS between 2007 November and 2013 February were phase-folded using a Geminga pulsar timing solution derived from data recorded by the XMM-Newton and Fermi-LAT space telescopes. No significant pulsed emission above 100 GeV is observed, and we report upper limits at the 95% confidence level on the integral flux above 135 GeV (spectral analysis threshold) of 4.0x10(-13) s(-1) cm(-2) and 1.7 x 10(-13) s(-1) cm(-2) for the two principal peaks in the emission profile. These upper limits, placed in context with phase-resolved spectral energy distributions determined from 5 yr of data from the Fermi-Large Area Telescope (LAT), constrain possible hardening of the Geminga pulsar emission spectra above similar to 50 GeV.en_IE
dc.description.sponsorshipThis research is supported by grants from the U.S. Department of Energy Office of Science, the U.S. National Science Foundation, and the Smithsonian Institution, by NSERC in Canada, by Science Foundation Ireland (SFI 10/RFP/AST2748), and by STFC in the U.K.en_IE
dc.publisherAmerican Astronomical Societyen_IE
dc.relation.ispartofAstrophysical Journalen
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Ireland
dc.subjectTEV GAMMA-RAYSen_IE
dc.subjectPG 1553+113en_IE
dc.subjectGamma rays: starsen_IE
dc.subjectPulsars: generalen_IE
dc.subjectPulsars: individual (PSR J0633+1746, Geminga)en_IE
dc.subjectLarge area telescopeen_IE
dc.subjectHigh energy emissionen_IE
dc.subjectFERMI-LAT observationsen_IE
dc.subjectCrab pulsaren_IE
dc.subjectGalactic sourcesen_IE
dc.subjectVela pulsaren_IE
dc.titleA search for pulsations from Geminga above 100 GeV with VERITASen_IE
dc.local.contactMark Lang, School Of Physics, Room 147, Arts/Science Building, Nui Galway. 3241 Email:

Files in this item


This item appears in the following Collection(s)

Show simple item record

Attribution-NonCommercial-NoDerivs 3.0 Ireland
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Ireland