Observations of the Crab Nebula and Pulsar with the Large-sized Telescope Prototype of the Cherenkov Telescope Array

Abe, H.; Bigongiari, C.; Teshima, M.; Vázquez Acosta, M.; Aguasca-Cabot, A.; Dorner, D.; Vallania, P.; Coromina, L. Freixas; Hayashi, K.; Lainez, M.; Carosi, A.; Kubo, H.; Mirzoyan, R.; Martínez, G.; Oka, T.; Gunji, S.; Verguilov, V.; de Bony de Lavergne, M.; Kobayashi, Y.; Truzzi, S.; Peresano, M.; Bonnoli, G.; Hahn, A.; Doro, M.; Borghese, A.; López-Oramas, A.; Principe, G.; Cassol, F.; Priyadarshi, C.; Germany; Luque-Escamilla, P. L.; Bhattacharjee, P.; Nievas, M.; Gasbarra, C.; Giordano, F.; Dominik, R. M.; Vovk, I.; Cauz, D.; Nosek, D.; Mas-Aguilar, A.; Sunada, Y.; Schussler, F.; Mizuno, T.; Maier, G.; Marsella, G.; Depaoli, D.; Paneque, D.; Gueta, Orel; Iarlori, M.; Le Flour, T.; Saito, T.; Miranda, J. M.; Arcaro, C.; Martí, J.; Micanovic, S.; Herrera Llorente, J.; Pantaleo, F. R.; Hadasch, D.; Schleicher, B.; Hashiyama, K.; Prandini, E.; Paiva, J. Giesbrecht; Mrakovcic, K.; Delgado Mengual, J.; Mazin, D.; Hui, D.; Jurysek, J.; Tam, P. H. T.; Emery, G.; D'Amico, G.; Vuillaume, T.; France); Kataoka, J.; Uhlrich, G.; Linhoff, M.; Berti, A.; de Almeida, U. Barres; Pérez, A.; Geyer, F.; Montaruli, T.; Katagiri, H.; Sitarek, J.; Elektronen-Synchrotron, Deutsches; Kosack, K.; Takahashi, M.; Burelli, I.; Escudero, J.; Rando, R.; Vitale, V.; Plard, C.; Hoffmann, D.; Zywucka, N.; Cheng, K.; Poireau, V.; Di Pierro, F.; Maurin, G.; Suda, Y.; Asano, K.; Chiavassa, A.; Sato, Y.; Walter, R.; Arbet-Engels, A.; Manganaro, M.; Aubert, P.; Merisiers, Orme des; Pech, M.; Kong, A.; Di Tria, R.; Silvia, R.; Voutsinas, G.; López, R. Garcia; Terzic, T.; Martinez, O.; Okazaki, N.; Tejedor, L. A.; Bernardos, M. I.; Ioka, K.; Otero-Santos, J.; della Volpe, D.; Chytka, L.; Monteiro, I.; De Angelis, A.; Mannheim, K.; Hrupec, D.; Lorini, A.; Antonelli, L. A.; Rhode, W.; Longo, F.; Vigorito, C. F.; Inome, Y.; Godinovic, N.; Marusevec, P.; Yoshida, T.; Karas, V.; Terauchi, K.; Ferrara, G.; Bulgarelli, A.; Dalchenko, M.; Abe, K.; Makariev, M.; Aramo, C.; Molina, E.; Schweizer, T.; Takeishi, R.; Strišković, J.; Bamba, A.; Spolon, A.; Noda, K.; Marquez, P.; López-Coto, R.; Miceli, D.; Nishijima, K.; Costantini, H.; Paredes, J. M.; Agudo, I.; Okumura, A.; Travnicek, P.; Artero, M.; Schubert, J. L.; Mandat, D.; Guillen, E. Mestre; Di Venere, L.; Majumdar, P.; CEA/IRFU/SAp; Elsässer, D.; Lamanna, G.; Contreras, J. L.; Paoletti, R.; Bordas, P.; Saclay, CEA; Viale, I.; Mariotti, M.; Palatiello, M.; Sanchez, D. A.; Donini, A.; Nickel, L.; Bissaldi, E.; Temnikov, P.; Morselli, A.; Fallah Ramazani, V.; Ohishi, M.; López-Moya, M.; Medrano, J. Bernete; Terada, Y.; Biederbeck, N.; Zeuthen; Tajima, H.; Schmuckermaier, F.; Iori, M.; Deleglise, G.; Yamamoto, T.; Abe, S.; Loporchio, S.; Heckmann, L.; CTA-LST Collaboration; Ribó, M.; Baxter, J.; Rizi, V.; de Menezes, R.; Dominis Prester, D.; Bernardini, E.; Nagai, A.; Crespo, N. Alvarez; Hassan, T.; De Lotto, B.; Baroncelli, L.; Tluczykont, M.; Iwamura, Y.; Sliusar, V.; Miener, T.; Šarić, T.; Giro, E.; Ishio, K.; Blanch, O.; Nozaki, S.; Chikawa, M.; Pecimotika, M.; Lamastra, A.; Martinez, I. Jimenez; Murase, K.; Nakamori, T.; Houles, J.; Vigliano, A.; van Scherpenberg, J.; Jacquemont, M.; Green, D.; Caroff, S.; Fiasson, A.; Cifuentes, A.; Dellaiera, M.; Becerra González, J.; Larriva, A. Baquero; Vacula, M.; Hütten, M.; Manicò, G.; Baktash, A.; Hackfeld, J.; Tutone, A.; Heller, M.; Delgado, C.; Yoshikoshi, T.; Chai, Y.; Gif-sur-Yvette; Garcia, E.; Nagataki, S.; Tanaka, S. J.; Hrabovsky, M.; Gonzalez, M. Molero; Heidelberg; Cardillo, M.; Takahashi, H.; Imazawa, R.; Fukami, S.; Fukazawa, Y.; Watson, J.; Kerszberg, D.; Horns, D.; Ferrarotto, F.; Kushida, J.; Sakurai, S.; Bernloehr, K.; Inada, T.; Torres, D. F.; Tokanai, F.; Yamazaki, R.; Kernphysik, Max-Planck-Institut für; Strzys, M.; Ceribella, G.; Saturni, F. G.; Cortina, J.; Ohtani, Y.; Prouza, M.; Prast, J.; Morcuende, D.; Green, J.; Will, M.; Díaz, C.; Kagaya, M.; Takata, J.; Polo, M.; Pirola, G.; Fernandez, G. Rodriguez; Tateishi, D.; Buscemi, M.; Hirotani, K.; Podobnik, F.; Di Piano, A.; Martínez, M.; Seglar Arroyo, M.; Giglietto, N.; Barrio, J. A.; Orito, R.; Pietropaolo, E.; Grau, R.; Moralejo, A.; Pons, E.; Batkovic, I.; Gliwny, P.; Gasparrini, D.; Ruiz, J. E.; Fröse, S.

doi:10.3847/1538-4357/ace89d

Journal Article

PUBDB-2024-00184

Observations of the Crab Nebula and Pulsar with the Large-sized Telescope Prototype of the Cherenkov Telescope Array

Abe, H. ; Abe, K. ; Abe, S. ; Aguasca-Cabot, A. ; Agudo, I. ; Crespo, N. A. ; Antonelli, L. A. ; Aramo, C. ; Arbet-Engels, A. ; Arcaro, C. ; Artero, M. ; Asano, K. ; Aubert, P. ; Baktash, A. ; Bamba, A. ; Larriva, A. B. ; Baroncelli, L. ; de Almeida, U. B. ; Barrio, J. A. ; Batkovic, I. ; Baxter, J. ; Becerra González, J. ; Bernardini, E.Extern* ; Bernardos, M. I. ; Medrano, J. B. ; Berti, A. ; Bhattacharjee, P. ; Biederbeck, N. ; Bigongiari, C. ; Bissaldi, E. ; Blanch, O. ; Bonnoli, G. ; Bordas, P. ; Borghese, A. ; Bulgarelli, A. ; Burelli, I. ; Buscemi, M. ; Cardillo, M. ; Caroff, S. ; Carosi, A. ; Cassol, F. ; Cauz, D. ; Ceribella, G. ; Chai, Y. ; Cheng, K. ; Chiavassa, A. ; Chikawa, M. ; Chytka, L. ; Cifuentes, A. ; Contreras, J. L. ; Cortina, J. ; Costantini, H. ; D'Amico, G. ; Dalchenko, M. ; De Angelis, A. ; de Bony de Lavergne, M. ; De Lotto, B. ; de Menezes, R. ; Deleglise, G. ; Delgado, C. ; Delgado Mengual, J. ; della Volpe, D. ; Dellaiera, M. ; Depaoli, D. ; Di Piano, A. ; Di Pierro, F. ; Di Tria, R. ; Di Venere, L. ; Díaz, C. ; Dominik, R. M. ; Dominis Prester, D. ; Donini, A. ; Dorner, D. ; Doro, M. ; Elsässer, D. ; Emery, G. ; Escudero, J. ; Fallah Ramazani, V. ; Ferrara, G. ; Ferrarotto, F. ; Fiasson, A. ; Coromina, L. F. ; Fröse, S. ; Fukami, S. ; Fukazawa, Y. ; Garcia, E. ; López, R. G. ; Gasbarra, C. ; Gasparrini, D. ; Geyer, F. ; Paiva, J. G. ; Giglietto, N. ; Giordano, F. ; Giro, E. ; Gliwny, P. ; Godinovic, N. ; Grau, R. ; Green, D. ; Green, J. ; Gunji, S. ; Hackfeld, J. ; Hadasch, D. ; Hahn, A. ; Hashiyama, K. ; Hassan, T. ; Hayashi, K. ; Heckmann, L. ; Heller, M. ; Herrera Llorente, J. ; Hirotani, K. ; Hoffmann, D. ; Horns, D. ; Houles, J. ; Hrabovsky, M. ; Hrupec, D. ; Hui, D. ; Hütten, M. ; Iarlori, M. ; Imazawa, R. ; Inada, T. ; Inome, Y. ; Ioka, K. ; Iori, M. ; Ishio, K. ; Iwamura, Y. ; Jacquemont, M. ; Martinez, I. J. ; Jurysek, J. ; Kagaya, M. ; Karas, V. ; Katagiri, H. ; Kataoka, J. ; Kerszberg, D. ; Kobayashi, Y. ; Kong, A. ; Kubo, H. ; Kushida, J. ; Lainez, M. ; Lamanna, G. ; Lamastra, A. ; Le Flour, T. ; Linhoff, M. ; Longo, F. ; López-Coto, R. ; López-Moya, M. ; López-Oramas, A. ; Loporchio, S. ; Lorini, A. ; Luque-Escamilla, P. L. ; Majumdar, P. ; Makariev, M. ; Mandat, D. ; Manganaro, M. ; Manicò, G. ; Mannheim, K. ; Mariotti, M. ; Marquez, P. ; Marsella, G. ; Martí, J. ; Martinez, O. ; Martínez, G. ; Martínez, M. ; Marusevec, P. ; Mas-Aguilar, A. ; Maurin, G. ; Mazin, D. ; Guillen, E. M. ; Micanovic, S. ; Miceli, D. ; Miener, T. ; Miranda, J. M. ; Mirzoyan, R. ; Mizuno, T. ; Gonzalez, M. M. ; Molina, E. ; Montaruli, T. ; Monteiro, I. ; Moralejo, A. ; Morcuende, D. ; Morselli, A. ; Mrakovcic, K. ; Murase, K. ; Nagai, A. ; Nagataki, S. ; Nakamori, T. ; Nickel, L. ; Nievas, M.DESY* ; Nishijima, K. ; Noda, K. ; Nosek, D. ; Nozaki, S. ; Ohishi, M. ; Ohtani, Y. ; Oka, T. ; Okazaki, N. ; Okumura, A. ; Orito, R. ; Otero-Santos, J. ; Palatiello, M. ; Paneque, D. ; Pantaleo, F. R. ; Paoletti, R. ; Paredes, J. M. ; Pech, M. ; Pecimotika, M. ; Peresano, M. ; Pérez, A. ; Pietropaolo, E. ; Pirola, G. ; Plard, C. ; Podobnik, F. ; Poireau, V. ; Polo, M. ; Pons, E. ; Prandini, E. ; Prast, J. ; Principe, G. ; Priyadarshi, C. ; Prouza, M. ; Rando, R. ; Rhode, W. ; Ribó, M. ; Rizi, V. ; Fernandez, G. R. ; Ruiz, J. E. ; Saito, T. ; Sakurai, S. ; Sanchez, D. A. ; Šarić, T. ; Sato, Y. ; Saturni, F. G. ; Schleicher, B. ; Schmuckermaier, F. ; Schubert, J. L. ; Schussler, F. ; Schweizer, T. ; Seglar Arroyo, M. ; Silvia, R. ; Sitarek, J. ; Sliusar, V. ; Spolon, A. ; Strišković, J. ; Strzys, M. ; Suda, Y. ; Sunada, Y. ; Tajima, H. ; Takahashi, H. ; Takahashi, M. ; Takata, J. ; Takeishi, R. ; Tam, P. H. T. ; Tanaka, S. J. ; Tateishi, D. ; Tejedor, L. A. ; Temnikov, P. ; Terada, Y. ; Terauchi, K. ; Terzic, T. ; Teshima, M. ; Tluczykont, M. ; Tokanai, F. ; Torres, D. F. ; Travnicek, P. ; Truzzi, S. ; Tutone, A. ; Uhlrich, G. ; Vacula, M. ; Vallania, P. ; van Scherpenberg, J. ; Vázquez Acosta, M. ; Verguilov, V. ; Viale, I. ; Vigliano, A. ; Vigorito, C. F. ; Vitale, V. ; Voutsinas, G. ; Vovk, I. ; Vuillaume, T. ; Walter, R. ; Will, M. ; Yamamoto, T. ; Yamazaki, R. ; Yoshida, T. ; Yoshikoshi, T. ; Zywucka, N. ; Bernloehr, K. ; Gueta, O.Extern*DESY* ; Kosack, K. ; Maier, G.DESY* ; Watson, J.DESY* ; Kernphysik, M. f. ; Heidelberg ; Germany ; Elektronen-Synchrotron, D. ; Zeuthen ; CEA/IRFU/SAp ; Saclay, C. ; Merisiers, O. d. ; Gif-sur-Yvette ; France) ; CTA-LST Collaboration (Collaboration author)

2023
Institute of Physics Publ. London

The astrophysical journal / Part 1 956(2), 80 (2023) [10.3847/1538-4357/ace89d]

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Please use a persistent id in citations: doi:10.3847/1538-4357/ace89d doi:10.3204/PUBDB-2024-00184

Report No.: arXiv:2306.12960

Abstract: The Cherenkov Telescope Array (CTA) is a next-generation ground-based observatory for gamma-ray astronomy at very high energies. The Large-Sized Telescope prototype (LST-1) is located at the CTA-North site, on the Canary Island of La Palma. LSTs are designed to provide optimal performance in the lowest part of the energy range covered by CTA, down to ≃20 GeV. LST-1 started performing astronomical observations in 2019 November, during its commissioning phase, and it has been taking data ever since. We present the first LST-1 observations of the Crab Nebula, the standard candle of very-high-energy gamma-ray astronomy, and use them, together with simulations, to assess the performance of the telescope. LST-1 has reached the expected performance during its commissioning period—only a minor adjustment of the preexisting simulations was needed to match the telescope’s behavior. The energy threshold at trigger level is around 20 GeV, rising to ≃30 GeV after data analysis. Performance parameters depend strongly on energy, and on the strength of the gamma-ray selection cuts in the analysis: angular resolution ranges from 0.°12–0.°40, and energy resolution from 15%–50%. Flux sensitivity is around 1.1% of the Crab Nebula flux above 250 GeV for a 50 hr observation (12% for 30 minutes). The spectral energy distribution (in the 0.03–30 TeV range) and the light curve obtained for the Crab Nebula agree with previous measurements, considering statistical and systematic uncertainties. A clear periodic signal is also detected from the pulsar at the center of the Nebula.

Keyword(s): energy: threshold ; gamma ray: VHE ; Cherenkov Telescope Array ; GeV ; performance ; flux ; pulsar ; angular resolution ; observatory ; sensitivity ; gamma ray: energy spectrum ; pulsar wind nebula ; Monte Carlo ; numerical calculations ; energy resolution ; site ; spectral energy distribution ; trigger ; statistical ; p ; muon ; optics ; TeV

Classification:

ddc:520

Note: Accepted in ApJ. v3: updated author list and acknowledgements, fixed typos and other minor issues

Contributing Institute(s):

CTA IKC (Z_CTAS)

Research Program(s):

613 - Matter and Radiation from the Universe (POF4-613) (POF4-613)

Experiment(s):

Cherenkov Telescope Array

Appears in the scientific report 2023

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Preprint Abe, S. ; Aguasca-Cabot, A. ; Agudo, I. ; et al
Observations of the Crab Nebula and Pulsar with the Large-Sized Telescope Prototype of the Cherenkov Telescope Array
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