67 research outputs found
Gerard Manley Hopkins. Veinte Poemas
Estas versiones de una selección de poemas de Gerard Manley Hopkins
S. J. (1844-1889), uno de los más originales poetas ingleses de todos los
tiempos, son obra de un traductor atípico. Abelardo Moralejo Álvarez
(Santiago de Compostela, 10-6-1940-Madrid, 13-12-2012) era un médico
que, tras haberse formado en la Facultad de Medicina de su ciudad natal
y en el Hospital General de Asturias de Oviedo, ejerció como cirujano durante
cuarenta años en el Hospital Clínico de San Carlos de Madrid
Performance of the Large-Sized Telescope prototype of the Cherenkov Telescope Array
The next-generation ground-based gamma-ray Cherenkov Telescope Array
Observatory (CTAO) will consist of imaging atmospheric Cherenkov telescopes
(IACTs) of three different sizes distributed in two sites. The Large-Sized
Telescopes will cover the low-energy end of the CTA energy range, starting at
about 20 GeV. After its first years of operation at the CTA northern site, the
Large-Sized Telescope prototype (LST-1) is in the final stage of its
commissioning phase, having collected a significant amount of scientific data
to date.
In this contribution, we present the physics performance of the telescope
using low-zenith Crab Nebula observations and Monte Carlo simulations
fine-tuned accordingly. We show performance figures of merit such as the energy
threshold, effective area, energy and angular resolution, and sensitivity based
on the standard Hillas-parameters approach and following the source-independent
and dependent analysis methods. The analysis threshold is estimated at 30 GeV.
The energy resolution is around 30%, and the angular resolution is 0.3 degrees
at 100 GeV. The best integral sensitivity of LST-1 is about 1.1% of the Crab
Nebula flux above 250 GeV for 50 hours of observations. We also show the
spectral energy distribution and light curve from Crab Nebula observations,
which agree with results from other IACTs and link smoothly with Fermi-LAT when
considering statistical and systematic uncertainties near the energy threshold.Comment: Presented at the 38th International Cosmic Ray Conference (ICRC
2023), 2023 (arXiv:2309.08219
Data processing activities at the MAGIC site
open11siMAGIC is a system of two imaging atmospheric Cherenkov telescopes located on the Canary Is- land of La Palma. The fast processing of the data at the observation site plays an essential part in the operation of the telescopes and has continuously improved since the beginning of the exper- iment. The on-site computing can be divided into three major contributions: the MAGIC online analysis (MOLA), providing preliminary real time analysis results; the on-site analysis (OSA), providing final data products at the end of each observation night; and the Data Check (DC), a daily check on the performance of the telescope’s subsystems and the quality control of the data observed during the previous night. We present the status of the system, including the latest upgrades and details on its performance.openFidalgo, David; Nievas-Rosillo, Miguel; Babic, Ana; Contreras, Jose-Luis; Doro, Michele; Godinovic, Nikola; Hrupec, Dario; Lorca, Alejandro; Moralejo, Abelardo; Satalecka, Konstancja; Will, MartinFidalgo, David; Nievas Rosillo, Miguel; Babic, Ana; Contreras, Jose Luis; Doro, Michele; Godinovic, Nikola; Hrupec, Dario; Lorca, Alejandro; Moralejo, Abelardo; Satalecka, Konstancja; Will, Marti
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