Abstract
The Whipple Observatory 10 m gamma;-ray telescope has been used to survey the error boxes of EGRET unidentified sources in an attempt to find counterparts at energies of 350 GeV and above. Twenty-one unidentified sources detected by EGRET (more than 10% of the total number) have been included in this survey. In no case is a statistically significant signal found in the EGRET error box, which implies that, at least for this sample, the gamma;-ray spectra of these sources steepen between 100 MeV and 350 GeV. For each EGRET source location, we list candidate associations and derive upper limits on the integral gamma;-ray flux above 350 GeV.
| Original language | English (Ireland) |
|---|---|
| Number of pages | 17 |
| Journal | Astrophysical Journal |
| Volume | 624 |
| Publication status | Published - 1 May 2005 |
Authors (Note for portal: view the doc link for the full list of authors)
- Authors
- Fegan, SJ;Badran, HM;Bond, IH;Boyle, PJ;Bradbury, SM;Buckley, JH;Carter-Lewis, DA;Catanese, M;Celik, O;Cui, W;Daniel, M;D'Vali, M;Perez, IDC;Duke, C;Falcone, A;Fegan, DJ;Finley, JP;Fortson, LF;Gaidos, JA;Gammell, S;Gibbs, K;Gillanders, GH;Grube, J;Hall, J;Hall, TA;Hanna, D;Hillas, AM;Holder, J;Horan, D;Jarvis, A;Jordan, M;Kenny, GE;Kertzman, M;Kieda, D;Kildea, J;Knapp, J;Kosack, K;Krawczynski, H;Krennrich, F;Lang, MJ;Le Bohec, S;Lessard, RW;Linton, E;Lloyd-Evans, J;Milovanovic, A;McEnery, J;Moriarty, P;Mukherjee, R;Muller, D;Nagai, T;Nolan, S;Ong, RA;Pallassini, R;Petry, D;Power-Mooney, B;Quinn, J;Quinn, M;Ragan, K;Rebillot, P;Reynolds, PT;Rose, HJ;Schroedter, M;Sembroski, GH;Swordy, SP;Syson, A;Vassiliev, VV;Wakely, SP;Walker, G;Weekes, TC;Zweerink, J
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