| Title: |
Observations of the Crab Nebula and Pulsar with the Large-sized Telescope Prototype of the Cherenkov Telescope Array |
| Authors: |
Abe, H.; Abe, K.; Abe, S.; Aguasca i Cabot, Arnau; Agudo, I.; Crespo, N.A.; Antonelli, L.A.; Aramo, C.; Arbet-Engels, Axel; Arcaro, C.; Artero, M.; Hackfeld, J.; Hadasch, D.; Hahn, A.; Hashiyama, K.; Hassan, T.; Hayashi, K.; Heckmann, L.; Heller, Matthieu; Llorente, J.H.; Hirotani, K.; Asano, K.; Hoffmann, Dirk L.; Horns, D.; Houles, J.; Hrabovsky, M.; Hrupec, D.; Hui, D.; Hütten, M.; Iarlori, M.; Imazawa, R.; Inada, T.; Aubert, P.; Inome, Y.; Ioka, K.; Iori, M.; Ishio, K.; Iwamura, Y.; Jacquemont, M.; Martinez, I.J.; Jurysek, J.; Kagaya, M.; Karas, V.; Baktash, A.; Katagiri, H.; Kataoka, J.; Kerszberg, D.; Kobayashi, Y.; Kong, A.; Kubo, H.; Kushida, J.; Lainez, M.; Lamanna, G.; Lamastra, A.; Bamba, 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.; Larriva, A.B.; Makariev, M.; Mandat, D.; Manganaro, M.; Manicò, G.; Mannheim, K.; Mariotti, M.; Marquez, P.; Marsella, G.; Martí, J.; Martinez, O.; Baroncelli, L.; Martínez, G.; Martínez, M.; Marusevec, P.; Mas-Aguilar, A.; Maurin, G.; Mazin, D.; Guillen, E.M.; Micanovic, S.; Miceli, D.; Miener, T.; de Almeida, U.B.; Miranda, J.M.; Mirzoyan, R.; Mizuno, T.; Gonzalez, M.M.; Molina, Edgar; Montaruli, Teresa; Monteiro, I.; Moralejo, A.; Morcuende, D.; Morselli, A.; Barrio, J.A.; Mrakovcic, K.; Murase, K.; Nagai, Andrii; Nagataki, S.; Nakamori, T.; Nickel, L.; Nievas, M.; Nishijima, K.; Noda, K.; Nosek, D.; Batkovic, I.; Nozaki, S.; Ohishi, M.; Ohtani, Y.; Oka, T.; Okazaki, N.; Okumura, A.; Orito, R.; Otero-Santos, J.; Palatiello, M.; Paneque, D.; Baxter, J.; Pantaleo, F.R.; Paoletti, R.; Paredes i Poy, Josep Maria; Pech, M.; Pecimotika, M.; Peresano, M.; Pérez González, Alba; Pietropaolo, E.; Pirola, G.; Plard, C.; González, J.B.; Podobnik, F.; Poireau, V.; Polo, M.; Pons Fanals, Ernest; Prandini, E.; Prast, J.; Principe, G.; Priyadarshi, C.; Prouza, M.; Rando, R.; Bernardini, E.; Rhode, W.; Ribó Gomis, Marc; Rizi, V.; Fernandez, G.R.; Ruiz, J.E.; Saito, T.; Sakurai, S.; Sanchez, D.A.; Šarić, T.; Sato, Y.; Bernardos, M.I.; Saturni, F.G.; Schleicher, B.; Schmuckermaier, F.; Schubert, J.L.; Schussler, F.; Schweizer, T.; Arroyo, M.S.; Silvia, R.; Sitarek, J.; Sliusar, V.; Medrano, J.B.; Spolon, A.; Strišković, J.; Strzys, M.; Suda, Y.; Sunada, Y.; Tajima, H.; Takahashi, H.; Takahashi, M.; Takata, J.; Takeishi, R.; Berti, A.; Tam, P.H.T.; Tanaka, S.J.; Tateishi, D.; Tejedor, L.A.; Temnikov, P.; Terada, Y.; Terauchi, K.; Terzic, T.; Teshima, M.; Tluczykont, M.; Bhattacharjee, P.; Tokanai, F.; Torres, D.F.; Travnicek, P.; Truzzi, S.; Tutone, A.; Uhlrich, G.; Vacula, M.; Vallania, P.; van Scherpenberg, J.; Acosta, M.V.; Biederbeck, N.; Verguilov, V.; Viale, I.; Vigliano, A.; Vigorito, C.F.; Vitale, V.; Voutsinas, G.; Vovk, I.; Vuillaume, T.; Walter, R.; Will, M.; Bigongiari, C.; Yamamoto, T.; Yamazaki, R.; Yoshida, T.; Yoshikoshi, T.; Zywucka, N.; Bernlöhr, K.; Gueta, O.; Kosack, K.; Maier, G.; Watson, J.; Bissaldi, E.; Blanch, O.; Bonnoli, G.; Bordas Coma, Pol; 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, Cristina; Delgado Mengual, J.; Volpe, D.D.; Dellaiera, M.; Depaoli, D.; Di Piano, A.; Di Pierro, F.; Di Tria, R.; Di Venere, L.; Díaz, Carlos; Dominik, R.M.; Prester, D.D.; Donini, A.; Dorner, D.; Doro, M.; Elsässer, D.; Emery, G.; Escudero, J.; Ramazani, V.F.; Ferrara, G.; Ferrarotto, F.; Fiasson, A.; Coromina, L.F.; Fröse, S.; Fukami, S.; Fukazawa, Yugo; Garcia, E.; Garcia López, R.; 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. |
| Source: |
Articles publicats en revistes (Econometria, Estadística i Economia Aplicada) |
| Publisher Information: |
Institute of Physics (IOP) |
| Publication Year: |
2023 |
| Collection: |
Dipòsit Digital de la Universitat de Barcelona |
| Subject Terms: |
Púlsars; Astronomia de raigs gamma; Nebuloses; Pulsars; Gamma ray astronomy; Nebulae |
| Description: |
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. |
| Document Type: |
article in journal/newspaper |
| File Description: |
25 p.; application/pdf |
| Language: |
English |
| Relation: |
Reproducció del document publicat a: https://doi.org/10.3847/1538-4357/ace89d; Astrophysical Journal, 2023, vol. 956, num.2, p. 1-25; https://doi.org/10.3847/1538-4357/ace89d; https://hdl.handle.net/2445/220455; 743760 |
| Availability: |
https://hdl.handle.net/2445/220455 |
| Rights: |
(c) American Astronomical Society, 2023 ; info:eu-repo/semantics/openAccess |
| Accession Number: |
edsbas.8135D1F |
| Database: |
BASE |