The major upgrade of the MAGIC telescopes, Part I: The hardware improvements and the commissioning of the system

J. Becerra Gonzalez (h aa) W. Bednarek (i) E. Bernardini (j) B. Biasuzzi (b) A. Biland (k) M. Bitossi (y) O. Blanch (a) S. Bonnefoy (g) G. Bonnoli (c) F. Borracci (f) T. Bretz (l ab) E. Carmona (m) A. Carosi (c) R. Cecchi (z) P. Colin (f) E. Colombo (h) J. L. Contreras (g) D. Corti (o) J. Cortina (a) S. Covino (c) P. Da Vela (d) F. Dazzi (f) A. De Angelis (b) G. De Caneva (j) B. De Lotto (b) E. de Ona Wilhelmi (n) C. Delgado Mendez (m) A. Dettlaff (f) D. Dominis Prester (e) D. Dorner (l) M. Doro (o) S. Einecke (p) D. Eisenacher (l) D. Elsaesser (l) D. Fidalgo (g) D. Fink (f) M. V. Fonseca (g) L. Font (q) K. Frantzen (p) C. Fruck (f) D. Galindo (r) R. J. Garcia Lopez (h) M. Garczarczyk (j) D. Garrido Terrats (q) M. Gaug (q) G. Giavitto (a J) N. Godinovic (e) A. Gonzalez Munoz (a) S. R. Gozzini (j) W. Haberer (f) D. Hadasch (n AC) Y. Hanabata (s) M. Hayashida (s) J. Herrera (h) D. Hildebrand (k) J. Hose (f) D. Hrupec (e) W. Idec (i) J. M. Illa (a) V. Kadenius (t) H. Kellermann (f) M. L. Knoetig (k) K. Kodani (s) Y. Konno (s) J. Krause (f) H. Kubo (s) J. Kushida (s) A. La Barbera (c) D. Lelas (e) J. L. Lemus (g) N. Lewandowska (l) E. Lindfors (t ae) S. Lombardi (c) F. Longo (b) M. Lopez (g) R. Lopez-Coto (a) A. Lopez-Oramas (a) A. Lorca (g) E. Lorenz (f ad) I. Lozano (g) M. Makariev (u) K. Mallot (j) G. Maneva (u) N. Mankuzhiyil (b af) K. Mannheim (l) L. Maraschi (c) B. Marcote (r) M. Mariotti (o) M. Martinez (a) D. Mazin (f S) U. Menzel (f) J. M. Miranda (d) R. Mirzoyan (f) A. Moralejo (a) P. Munar-Adrover (r) D. Nakajima (s) M. Negrello (o) V. Neustroev (t) A. Niedzwiecki (i) K. Nilsson (t K. Nishijima (s) K. Noda (f) R. Orito (s) A. Overkemping (p) S. Paiano (o) M. Palatiello (b) D. Paneque (f) R. Paoletti (d) J. M. Paredes (r) X. Paredes-Fortuny (r) M. Persic (b ag) J. Poutanen (t) P. G. Prada Moroni (v) E. Prandini (k) I. Puljak (e) R. Reinthal (t) W. Rhode (p) M. Ribo (r) J. Rico (a) J. Rodriguez Garcia (f) S. Rugamer (l) T. Saito (s) K. Saito (s) K. Satalecka (g) V. Scalzotto (o) V. Scapin (g) C. Schultz (o) J. Schlammer (f) S. Schmidl (f) T. Schweizer (f) A. Sillanpaa (t) J. Sitarek (a) I. Snidaric (e) D. Sobczynska (i) F. Spanier (l) A. Stamerra (c) T. Steinbring (l) J. Storz (l) M. Strzys (f) L. Takalo (t) H. Takami (s) F. Tavecchio (c) L. A. Tejedor (g) P. Temnikov (u) T. Terzic (e) D. Tescaro (h) M. Teshima (f) J. Thaele (p) O. Tibolla (l) D. F. Torres (w) T. Toyama (f) A. Treves (x) P. Vogler (k) H. Wetteskind (f) M. Will (h) R. Zanin (r) ((a) IFAE Campus UAB E-08193 Bellaterra Spain (b) Universita di Udine INFN Trieste I-33100 Udine Italy (c) INAF National Institute for Astrophysics I-00136 Rome Italy (d) Universita di Siena INFN Pisa I-53100 Siena Italy (e) Croatian MAGIC Consortium Rudjer Boskovic Institute University of Rijeka University of Split HR-10000 Zagreb Croatia (f) Max-Planck-Institut fur Physik D-80805 Munchen Germany (g) Universidad Complutense E-28040 Madrid Spain (h) Inst. de Astrofisica de Canarias E-38200 La Laguna Tenerife Spain (i) University of Lodz PL-90236 Lodz Poland (j) Deutsches Elektronen-Synchrotron (DESY) D-15738 Zeuthen Germany (k) ETH Zurich CH-8093 Zurich Switzerland (l) Universitat Wurzburg D-97074 Wurzburg Germany (m) Centro de Investigaciones Energeticas Medioambientales y Tecnologicas Spain (n) Institute of Space Sciences E-08193 Barcelona Spain (o) Universita di Padova INFN I-35131 Padova Italy (p) Technische Universitat Dortmund D-44221 Dortmund Germany (q) Unitat de Fisica de les Radiacions Departament de Fisica CERES-IEEC Universitat Autonoma de Barcelona Spain (r) Universitat de Barcelona ICC IEEC-UB E-08028 Barcelona Spain (s) Japanese MAGIC Consortium Division of Physics Astronomy Kyoto University Japan (t) Finnish MAGIC Consortium Tuorla Observatory University of Turku Department of Physics University of Oulu Finland (u) Inst. for Nucl. Research Nucl. Energy BG-1784 Sofia Bulgaria (v) Universita di Pisa I-56126 Pisa Italy (w) ICREA Institute of Space Sciences Spain (x) Universita dell Insubria INFN Milano Bicocca Como I-22100 Como Italy (y) European Gravitational Observatory I-56021 S. Stefano a Macerata Italy (z) Universita di Siena INFN Siena Italy (aa) now at: NASA Goddard Space Flight Center Greenbelt MD 20771 USA Department of Astronomy University of Maryland College Park MD 20742 USA (ab) now at Ecole polytechnique federale de Lausanne (EPFL) Lausanne Switzerland (ac) Now at Institut fur Astro- und Teilchenphysik Leopold-Franzens- Universitat Innsbruck A-6020 Innsbruck Austria (ad) deceased (ae) now at Finnish Centre for Astronomy with ESO (FINCA) Turku Finland (af) now at Astrophysics Science Division Bhabha Atomic Research Centre Mumbai 400085 India (ag) also at INAF-Trieste)