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@ARTICLE{Abe:622810,
      author       = {Abe, S. and Abhir, J. and Acciari, V. A. and Aguasca-Cabot,
                      A. and Agudo, I. and Aniello, T. and Ansoldi, S. and
                      Antonelli, L. A. and Engels, A. Arbet and Arcaro, C. and
                      Artero, M. and Asano, K. and Babić, A. and Baquero, A. and
                      de Almeida, U. Barres and Barrio, J. A. and Batković, I.
                      and Bautista, A. and Baxter, J. and González, J. Becerra
                      and Bernardini, E. and Bernardos, M. and Bernete, J. and
                      Berti, A. and Besenrieder, J. and Bigongiari, C. and Biland,
                      A. and Blanch, O. and Bonnoli, G. and Bošnjak, Ž. and
                      Burelli, I. and Busetto, G. and Campoy-Ordaz, A. and Carosi,
                      A. and Carosi, R. and Carretero-Castrillo, M. and Ceribella,
                      G. and Chai, Y. and Cifuentes, A. and Colombo, E. and
                      Contreras, J. L. and Cortina, J. and Covino, S. and D'Amico,
                      G. and D'Elia, V. and Da Vela, P. and Dazzi, F. and De
                      Angelis, A. and De Lotto, B. and de Menezes, R. and Del
                      Popolo, A. and Delfino, M. and Delgado, J. and Mendez, C.
                      Delgado and Di Pierro, F. and Di Venere, L. and Dominis
                      Prester, D. and Donini, A. and Dorner, D. and Doro, M. and
                      Elsaesser, D. and Emery, G. and Escudero, J. and na, L. Fari
                      and Fariña, L. and Fattorini, A. and Foffano, L. and Font,
                      L. and Fröse, S. and Fukami, S. and Fukazawa, Y. and
                      López, R. J. García and Garczarczyk, M. and Gasparyan, S.
                      and Gaug, M. and Paiva, J. G. Giesbrecht and Giglietto, N.
                      and Giordano, F. and Gliwny, P. and Gradetzke, T. and Grau,
                      R. and Green, D. and Green, Jeremy Russell and Günther, P.
                      and Hadasch, D. and Hahn, A. and Hassan, T. and Heckmann, L.
                      and Herrera, J. and Hrupec, D. and Hütten, M. and Imazawa,
                      R. and Ishio, K. and Martínez, I. Jiménez and Jormanainen,
                      J. and Kayanoki, T. and Kerszberg, D. and Kluge, G. W. and
                      Kobayashi, Y. and Kouch, P. M. and Kubo, H. and Kushida, J.
                      and Láinez, M. and Lamastra, A. and Leone, F. and Lindfors,
                      E. and Linhoff, L. and Lombardi, S. and Longo, F. and
                      López-Coto, R. and López-Moya, M. and López-Oramas, A.
                      and Loporchio, S. and Lorini, A. and Lyard, E. and Fraga, B.
                      Machado de Oliveira and Majumdar, P. and Makariev, M. and
                      Maneva, G. and Mang, N. and Manganaro, M. and Mangano, S.
                      and Mannheim, K. and Mariotti, M. and Martínez, M. and
                      Martínez-Chicharro, M. and Mas-Aguilar, A. and Mazin, D.
                      and Menchiari, S. and Mender, S. and Miceli, D. and Miener,
                      T. and Miranda, J. M. and Mirzoyan, R. and González, M.
                      Molero and Molina, E. and Mondal, H. A. and Moralejo, A. and
                      Morcuende, D. and Nakamori, T. and Nanci, C. and Neustroev,
                      V. and Nickel, L. and Nievas Rosillo, M. and Nigro, C. and
                      Nikolić, L. and Nilsson, K. and Nishijima, K. and Ekoume,
                      T. Njoh and Noda, K. and Nozaki, S. and Ohtani, Y. and
                      Okumura, A. and Otero-Santos, J. and Paiano, S. and
                      Palatiello, M. and Paneque, D. and Paoletti, R. and Paredes,
                      J. M. and Peresano, M. and Persic, M. and Pihet, M. and
                      Pirola, G. and Podobnik, F. and Prada Moroni, P. G. and
                      Prandini, E. and Principe, G. and Priyadarshi, C. and Rhode,
                      W. and Ribó, M. and Rico, J. and Righi, C. and Sahakyan, N.
                      and Saito, T. and Satalecka, K. and Saturni, F. G. and
                      Schleicher, B. and Schmidt, K. and Schmuckermaier, F. and
                      Schubert, J. L. and Schweizer, T. and Sciaccaluga, A. and
                      Silvestri, G. and Sitarek, J. and Sliusar, V. and
                      Sobczynska, D. and Spolon, A. and Stamerra, A. and
                      Strišković, J. and Strom, D. and Strzys, M. and Suda, Y.
                      and Surić, T. and Suutarinen, S. and Tajima, H. and
                      Takahashi, M. and Takeishi, R. and Temnikov, P. and
                      Terauchi, K. and Terzić, T. and Truzzi, M. Teshima S. and
                      Tutone, A. and Ubach, S. and van Scherpenberg, J. and
                      Vazquez Acosta, M. and Ventura, S. and Viale, I. and
                      Vigorito, C. F. and Vitale, V. and Walter, R. and Will, M.
                      and Wunderlich, C. and Yamamoto, T. and Díaz, G. Chon C.
                      and Fiori, M. and Lobo, M. and Naletto, G. and Polo, M. and
                      Rodríguez-Vázquez, J. J. and Saha, P. and Zampieri, L.},
      collaboration = {{MAGIC Collaboration}},
      title        = {{P}erformance and first measurements of the {MAGIC} stellar
                      intensity interferometer},
      reportid     = {PUBDB-2025-00491, arXiv:2402.04755},
      year         = {2024},
      note         = {18 pages, 13 figures, submitted to MNRAS},
      abstract     = {In recent years, a new generation of optical intensity
                      interferometers has emerged, leveraging the existing
                      infrastructure of Imaging Atmospheric Cherenkov Telescopes
                      (IACTs). The MAGIC telescopes host the MAGIC-SII system
                      (Stellar Intensity Interferometer), implemented to
                      investigate the feasibility and potential of this technique
                      on IACTs. After the first successful measurements in 2019,
                      the system was upgraded and now features a real-time,
                      dead-time-free, 4-channel, GPU-based correlator. These
                      hardware modifications allow seamless transitions between
                      MAGIC’s standard very-high-energy gamma-ray observations
                      and optical interferometry measurements within seconds. We
                      establish the feasibility and potential of employing IACTs
                      as competitive optical Intensity Interferometers with
                      minimal hardware adjustments. The measurement of a total of
                      22 stellar diameters are reported, 9 corresponding to
                      reference stars with previous comparable measurements, and
                      13 with no prior measurements. A prospective implementation
                      involving telescopes from the forthcoming Cherenkov
                      Telescope Array Observatory’s Northern hemisphere array,
                      such as the first prototype of its Large-Sized Telescopes,
                      LST-1, is technically viable. This integration would
                      significantly enhance the sensitivity of the current system
                      and broaden the UV-plane coverage. This advancement would
                      enable the system to achieve competitive sensitivity with
                      the current generation of long-baseline optical
                      interferometers over blue wavelengths.},
      keywords     = {instrumentation: high angular resolution (autogen) /
                      instrumentation: interferometers (autogen) / stars:
                      fundamental parameters (autogen) / stars: imaging (autogen)},
      cin          = {$Z_GA$},
      ddc          = {520},
      cid          = {$I:(DE-H253)Z_GA-20210408$},
      pnm          = {613 - Matter and Radiation from the Universe (POF4-613) /
                      MicroStars - Extreme time and angular resolution in the
                      optical with Cherenkov telescopes (101076533)},
      pid          = {G:(DE-HGF)POF4-613 / G:(EU-Grant)101076533},
      experiment   = {EXP:(DE-H253)MAGIC-20170101},
      typ          = {PUB:(DE-HGF)25},
      eprint       = {2402.04755},
      howpublished = {arXiv:2402.04755},
      archivePrefix = {arXiv},
      SLACcitation = {$\%\%CITATION$ = $arXiv:2402.04755;\%\%$},
      url          = {https://bib-pubdb1.desy.de/record/622810},
}