Search for VHE gamma-ray emission from Geminga pulsar and nebula with the MAGIC telescopes
- Ahnen, M. L.
- Ansoldi, S.
- Antonelli, L. A.
- Antoranz, P.
- Babic, A.
- Banerjee, B.
- Bangale, P.
- De Almeida, U. Barres
- Barrio, J. A.
- Gonzalez, J. Becerra
- Bednarek, W.
- Bernardini, E.
- Berti, A.
- Biasuzzi, B.
- Biland, A.
- Blanch, O.
- Bonnefoy, S.
- BONNOLI, GIACOMO
- Borracci, F.
- Bretz, T.
- Buson, S.
- Carosi, A.
- Chatterjee, A.
- Clavero, R.
- Colin, P.
- Colombo, E.
- Contreras, J. L.
- Cortina, J.
- Covino, S.
- DA VELA, PAOLO
- Dazzi, F.
- De Angelis, A.
- De Lotto, B.
- Wilhelmi, E. De Ona
- Di Pierro, F.
- Doert, M.
- Dominguez, A.
- Prester, D. Dominis
- Dorner, D.
- Doro, M.
- Einecke, S.
- Glawion, D. Eisenacher
- Elsaesser, D.
- Ramazani, V. Fallah
- Fernandez Barral, A.
- Fidalgo, D.
- Fonseca, M. V.
- Font, L.
- Frantzen, K.
- Fruck, C.
- Galindo, D.
- Lopez, R. J. Garcia
- Garczarczy, M.
- Terrats, D. Garrido
- Gaug, M.
- Giammaria, P.
- Godinovic, N.
- Munoz, A. Gonzalez
- Gora, D.
- Guberman, D.
- Hadasch, D.
- Hahn, A.
- Hanabata, Y.
- Hayashida, M.
- Herrera, J.
- Hose, J.
- Hrupec, D.
- Hughes, G.
- Idec, W.
- Kodani, K.
- Konno, Y.
- Kubo, H.
- Kushida, J.
- La Barbera, A.
- Lelas, D.
- Lindfors, E.
- Lombardi, S.
- Longo, F.
- Lopez, M.
- Lopez Coto, R.
- Majumdar, P.
- Makariev, M.
- Mallot, K.
- Maneva, G.
- Manganaro, M.
- Mannheim, K.
- Maraschi, L.
- Marcote, B.
- Mariotti, M.
- Martinez, M.
- Mazin, D.
- Menzel, U.
- Miranda, J. M.
- Mirzoyan, R.
- Moralejo, A.
- Moretti, E.
- Nakajima, D.
- Neustroev, V.
- Niedzwiecki, A.
- Rosillo, M. Nievas
- Nilsson, K.
- Nishijima, K.
- Noda, K.
- Nogues, L.
- Overkemping, A.
- Paiano, S.
- Palacio, J.
- Palatiello, M.
- Paneque, D.
- PAOLETTI, RICCARDO
- Paredes, J. M.
- Paredes Fortuny, X.
- Pedaletti, G.
- Peresano, M.
- Perri, L.
- Persic, M.
- Poutanen, J.
- Moroni, P. G. Prada
- Prandini, E.
- Puljak, I.
- Reichardt, I.
- Rhode, W.
- Ribo, M.
- Rico, J.
- Garcia, J. Rodriguez
- Saito, T.
- Satalecka, K.
- Schultz, C.
- Schweizer, T.
- Shore, S. N.
- Sillanpaa, A.
- Sitarek, J.
- Snidaric, I.
- Sobczynska, D.
- STAMERRA, ANTONIO
- Steinbring, T.
- Strzys, M.
- Suric, T.
- Takalo, L.
- Tavecchio, F.
- Temnikov, P.
- Terzic, T.
- Tescaro, D.
- Teshima, M.
- Thaele, J.
- Torres, D. F.
- Toyama, T.
- Treves, A.
- Vanzo, G.
- Verguilov, V.
- Vovk, I.
- Ward, J. E.
- Will, M.
- Wu, M. H.
- Zanin, R.
DOIAbstract
The Geminga pulsar, one of the brighest gamma-ray sources, is a promising candidate for emission of very-high-energy (VHE > 100 GeV) pulsed gamma rays. Also, detection of a large nebula has been claimed by water Cherenkov instruments. We performed deep observations of Geminga with the MAGIC telescopes, yielding 63 h of good-quality data, and searched for emission from the pulsar and pulsar wind nebula. We did not find any significant detection, and derived 95% confidence level upper limits. The resulting upper limits of 5.3 × 10-13 TeV cm-2 s-1 for the Geminga pulsar and 3.5 × 10-12 TeV cm-2 s-1 for the surrounding nebula at 50 GeV are the mostconstraining ones obtained so far at VHE. To complement the VHE observations, we also analyzed ...
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