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In-flight measureme...
In-flight measurement of the absolute energy scale of the Fermi Large Area Telescope
- Article/chapterEnglish2012
Publisher, publication year, extent ...
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Elsevier BV,2012
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printrdacarrier
Numbers
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LIBRIS-ID:oai:DiVA.org:kth-85985
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https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-85985URI
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https://doi.org/10.1016/j.astropartphys.2011.10.007DOI
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https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-76771URI
Supplementary language notes
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Language:English
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Summary in:English
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Classification
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Subject category:ref swepub-contenttype
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Subject category:art swepub-publicationtype
Notes
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QC 20120402
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141
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The Large Area Telescope (LAT) on-board the Fermi Gamma-ray Space Telescope is a pair-conversion telescope designed to survey the gamma-ray sky from 20 MeV to several hundreds of GeV. In this energy band there are no astronomical sources with sufficiently well known and sharp spectral features to allow an absolute calibration of the LAT energy scale. However, the geomagnetic cutoff in the cosmic ray electron-plus-positron (CRE) spectrum in low Earth orbit does provide such a spectral feature. The energy and spectral shape of this cutoff can be calculated with the aid of a numerical code tracing charged particles in the Earth's magnetic field. By comparing the cutoff value with that measured by the LAT in different geomagnetic positions, we have obtained several calibration points between ∌6 and ∌13 GeV with an estimated uncertainty of ∌2%. An energy calibration with such high accuracy reduces the systematic uncertainty in LAT measurements of, for example, the spectral cutoff in the emission from gamma ray pulsars.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
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Ajello, M.
(author)
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Allafort, A.
(author)
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Atwood, W. B.
(author)
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Axelsson, MagnusStockholms universitet,KTH,Partikel- och astropartikelfysik,Institutionen för astronomi(Swepub:su)aaxe
(author)
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Baldini, L.
(author)
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Barbiellini, G.
(author)
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Bastieri, D.
(author)
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Bechtol, K.
(author)
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Bellazzini, R.
(author)
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Berenji, B.
(author)
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Bloom, E. D.
(author)
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Bonamente, E.
(author)
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Borgland, A. W.
(author)
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Bouvier, A.
(author)
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Bregeon, J.
(author)
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Brez, A.
(author)
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Brigida, M.
(author)
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Bruel, P.
(author)
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Buehler, R.
(author)
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Buson, S.
(author)
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Caliandro, G. A.
(author)
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Cameron, R. A.
(author)
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Caraveo, P. A.
(author)
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Casandjian, J. M.
(author)
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Cecchi, C.
(author)
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Charles, E.
(author)
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Chekhtman, A.
(author)
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Chiang, J.
(author)
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Ciprini, S.
(author)
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Claus, R.
(author)
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Cohen-Tanugi, J.
(author)
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Cutini, S.
(author)
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De Palma, F.
(author)
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Dermer, C. D.
(author)
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Digel, S. W.
(author)
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Do Couto E Silva, E.
(author)
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Drell, P. S.
(author)
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Drlica-Wagner, A.
(author)
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Dubois, R.
(author)
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Enoto, T.
(author)
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Falletti, L.
(author)
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Favuzzi, C.
(author)
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Fegan, S. J.
(author)
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Focke, W. B.
(author)
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Fortin, P.
(author)
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Fukazawa, Y.
(author)
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Funk, S.
(author)
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Fusco, P.
(author)
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Gargano, F.
(author)
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Gehrels, N.
(author)
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Germani, S.
(author)
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Giglietto, N.
(author)
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Giordano, F.
(author)
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Giroletti, M.
(author)
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Glanzman, T.
(author)
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Godfrey, G.Stockholms universitet,Institutionen för astronomi
(author)
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Grenier, I. A.
(author)
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Grove, J. E.
(author)
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Guiriec, S.
(author)
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Hadasch, D.
(author)
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Hayashida, M.
(author)
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Hays, E.
(author)
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Hughes, R. E.
(author)
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Jóhannesson, G.
(author)
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Johnson, A. S.
(author)
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Johnson, T. J.
(author)
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Kamae, T.
(author)
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Katagiri, H.
(author)
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Kataoka, J.
(author)
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Knödlseder, J.
(author)
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Kuss, M.
(author)
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Lande, J.
(author)
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Latronico, L.
(author)
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Lee, S. -H
(author)
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Longo, F.
(author)
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Loparco, F.
(author)
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Lovellette, M. N.
(author)
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Lubrano, P.
(author)
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Madejski, G. M.
(author)
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Mazziotta, M. N.
(author)
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McEnery, J. E.
(author)
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Michelson, P. F.
(author)
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Mizuno, T.
(author)
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Moiseev, A. A.
(author)
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Monte, C.
(author)
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Monzani, M. E.
(author)
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Morselli, A.
(author)
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Moskalenko, I. V.
(author)
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Murgia, S.
(author)
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Nakamori, T.
(author)
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Naumann-Godo, M.
(author)
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Nolan, P. L.
(author)
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Norris, J. P.
(author)
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Nuss, E.
(author)
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Ohsugi, T.
(author)
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Okumura, A.
(author)
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Omodei, N.
(author)
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Orlando, E.
(author)
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Ormes, J. F.
(author)
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Ozaki, M.
(author)
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Paneque, D.
(author)
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Panetta, J. H.
(author)
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Parent, D.
(author)
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Pesce-Rollins, M.
(author)
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Pierbattista, M.
(author)
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Piron, F.
(author)
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Rain, S.
(author)
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Rando, R.
(author)
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Razzano, M.
(author)
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Reimer, A.
(author)
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Reimer, O.
(author)
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Reposeur, T.
(author)
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Ritz, S.
(author)
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Rochester, L. S.
(author)
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Sgr, C.
(author)
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Siskind, E. J.
(author)
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Smith, P. D.
(author)
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Spandre, G.
(author)
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Spinelli, P.
(author)
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Suson, D. J.
(author)
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Takahashi, H.
(author)
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Tanaka, T.
(author)
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Thayer, J. G.
(author)
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Thayer, J. B.
(author)
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Thompson, D. J.
(author)
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Tibaldo, L.
(author)
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Tosti, G.
(author)
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Troja, E.
(author)
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Usher, T. L.
(author)
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Vandenbroucke, J.
(author)
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Vasileiou, V.
(author)
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Vianello, G.
(author)
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Vilchez, N.
(author)
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Vitale, V.
(author)
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Waite, A. P.
(author)
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Wang, P.
(author)
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Winer, B. L.
(author)
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Wood, K. S.
(author)
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Yang, Z.
(author)
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Zimmer, StephanStockholms universitet,Fysikum(Swepub:su)stzi0820
(author)
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Knoedlseder, J.
(author)
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KTHPartikel- och astropartikelfysik
(creator_code:org_t)
Related titles
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In:Astroparticle physics: Elsevier BV35:6, s. 346-3530927-65051873-2852
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- By the author/editor
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Ackermann, M.
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Ajello, M.
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Allafort, A.
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Atwood, W. B.
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Axelsson, Magnus
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Baldini, L.
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show more...
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Barbiellini, G.
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Bastieri, D.
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Bechtol, K.
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Bellazzini, R.
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Berenji, B.
-
Bloom, E. D.
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Bonamente, E.
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Borgland, A. W.
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Bouvier, A.
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Bregeon, J.
-
Brez, A.
-
Brigida, M.
-
Bruel, P.
-
Buehler, R.
-
Buson, S.
-
Caliandro, G. A.
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Cameron, R. A.
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Caraveo, P. A.
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Casandjian, J. M ...
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Cecchi, C.
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Charles, E.
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Chekhtman, A.
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Chiang, J.
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Ciprini, S.
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Claus, R.
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Cohen-Tanugi, J.
-
Cutini, S.
-
De Palma, F.
-
Dermer, C. D.
-
Digel, S. W.
-
Do Couto E Silva ...
-
Drell, P. S.
-
Drlica-Wagner, A ...
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Dubois, R.
-
Enoto, T.
-
Falletti, L.
-
Favuzzi, C.
-
Fegan, S. J.
-
Focke, W. B.
-
Fortin, P.
-
Fukazawa, Y.
-
Funk, S.
-
Fusco, P.
-
Gargano, F.
-
Gehrels, N.
-
Germani, S.
-
Giglietto, N.
-
Giordano, F.
-
Giroletti, M.
-
Glanzman, T.
-
Godfrey, G.
-
Grenier, I. A.
-
Grove, J. E.
-
Guiriec, S.
-
Hadasch, D.
-
Hayashida, M.
-
Hays, E.
-
Hughes, R. E.
-
Jóhannesson, G.
-
Johnson, A. S.
-
Johnson, T. J.
-
Kamae, T.
-
Katagiri, H.
-
Kataoka, J.
-
Knödlseder, J.
-
Kuss, M.
-
Lande, J.
-
Latronico, L.
-
Lee, S. -H
-
Longo, F.
-
Loparco, F.
-
Lovellette, M. N ...
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Lubrano, P.
-
Madejski, G. M.
-
Mazziotta, M. N.
-
McEnery, J. E.
-
Michelson, P. F.
-
Mizuno, T.
-
Moiseev, A. A.
-
Monte, C.
-
Monzani, M. E.
-
Morselli, A.
-
Moskalenko, I. V ...
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Murgia, S.
-
Nakamori, T.
-
Naumann-Godo, M.
-
Nolan, P. L.
-
Norris, J. P.
-
Nuss, E.
-
Ohsugi, T.
-
Okumura, A.
-
Omodei, N.
-
Orlando, E.
-
Ormes, J. F.
-
Ozaki, M.
-
Paneque, D.
-
Panetta, J. H.
-
Parent, D.
-
Pesce-Rollins, M ...
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Pierbattista, M.
-
Piron, F.
-
Rain, S.
-
Rando, R.
-
Razzano, M.
-
Reimer, A.
-
Reimer, O.
-
Reposeur, T.
-
Ritz, S.
-
Rochester, L. S.
-
Sgr, C.
-
Siskind, E. J.
-
Smith, P. D.
-
Spandre, G.
-
Spinelli, P.
-
Suson, D. J.
-
Takahashi, H.
-
Tanaka, T.
-
Thayer, J. G.
-
Thayer, J. B.
-
Thompson, D. J.
-
Tibaldo, L.
-
Tosti, G.
-
Troja, E.
-
Usher, T. L.
-
Vandenbroucke, J ...
-
Vasileiou, V.
-
Vianello, G.
-
Vilchez, N.
-
Vitale, V.
-
Waite, A. P.
-
Wang, P.
-
Winer, B. L.
-
Wood, K. S.
-
Yang, Z.
-
Zimmer, Stephan
-
Knoedlseder, J.
-
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