Observations of the Crab Nebula and Pulsar with the Large-sized Telescope Prototype of the Cherenkov Telescope Array-Reference-Cited by-同舟云学术

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

Published:2023-10-01 Issue:2 Volume:956 Page:80
ISSN:0004-637X
Container-title:The Astrophysical Journal
language:
Short-container-title:ApJ

Author:

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

Abstract

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.

Funder

Conselho Nacional de Desenvolvimento Científico e Tecnológico

Fundação de Amparo à Pesquisa do Estado do Rio de Janeiro

Fundação de Amparo à Pesquisa do Estado de São Paulo

Fundação de Apoio à Ciência, Tecnologia e Inovação do Paraná - Fundação Araucária

Ministry of Science, Technology, Innovations and Communications (MCTIC)

Ministry of Education and Science, National RI Roadmap Project

Croatian Science Foundation

Rudjer Boskovic Institute

University of Osijek

University of Rijeka

University of Split

Faculty of Electrical Engineering

Mechanical Engineering and Naval Architecture

University of Zagreb, Faculty of Electrical Engineering and Computing

Ministry of Education, Youth and Sports MEYS

Ministry of Education, Youth and Sports EU/MEYS

the French Programme dinvestissements davenir and the Enigmass Labex

Univ. Savoie Mont Blanc, MUST computing center

Max Planck Society German Bundesministerium für Bildung und Forschung

Deutsche Forschungsgemeinschaft

Istituto Nazionale di Astrofisica

Istituto Nazionale di Fisica Nucleare

Italian Ministry for University and Research

ICRR

University of Tokyo

JSPS

MEXT

JST SPRING

Narodowe Centrum Nauki

Spanish Ministry of Science and Innovation and the Spanish Research State Agency

Centro de Excelencia Severo Ochoa

Unidad de Excelencia María de Maeztu Program

Ramón y Cajal Program

Juan de la Cierva-Incorporación Program

The “Atracción de Talento” Program of Comunidad de Madrid

The Project “Tecnologías avanzadas para la exploración del universo y sus componentes”

Comunidad de Madrid, by the Recovery, Transformation and Resilience Plan from the Spanish State

NextGenerationEU from the European Union through the Recovery and Resilience Facility

The La Caixa Banking Foundation

The “Programa Operativo”

Consejería de Economía y Conocimiento de la Junta de Andalucía

PAIDI 2020

Universidad de Jaén

Ministerio de Ciencia e Innovación

Consejería de Economía, Industria, Comercio y Conocimiento del Gobierno de Canarias

The “CERCA” program

Generalitat de Catalunya

The European Union’s “Horizon 2020”

NextGenerationEU

State Secretariat for Education, Research and Innovation

Swiss National Science Foundation

European Union’s Seventh Framework Programme

Horizon 2020 research and innovation programme

Publisher

American Astronomical Society

Subject

Space and Planetary Science,Astronomy and Astrophysics

Link

https://iopscience.iop.org/article/10.3847/1538-4357/ace89d/pdf

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