Año de inicio
2003
Unidad organizativa
Institución organizadora
Subvenciones relacionadas:
General
Descripción
El Grupo de Astrofísica de Partículas del IAC participa activamente en tres grandes colaboraciones internacionales de astrofísica de muy altas energías: AMS (Alpha Magnetic Spectrometer), los telescopios de radiación Cherenkov MAGIC I y II, y el Cherenkov Telescope Array (CTA).
AMS es un detector de partículas diseñado para operar en el espacio, a bordo de la Estación Espacial Internacional. Se instaló con éxito en mayo de 2011, y se espera que opere durante toda la vida útil de la misma. Su misión es realizar un estudio de alta precisión y estadística del espectro y la composición de los rayos cósmicos primarios en un amplio rango de energía, así como buscar antimateria primordial y materia oscura de forma indirecta.
La colaboración MAGIC está formada por 20 institutos y departamentos universitarios de Alemania, Armenia, Bulgaria, España, EEUU, Finlandia, Italia, Polonia y Suiza. La colaboración cuenta con dos telescopios de 17 m de diámetro localizados en el Obsevatorio del Roque de los Muchachos, diseñados para medir la radiación Cherenkov asociada a cascadas atmosféricas producidas por rayos gamma de muy alta energía y localizados en el Observatorio del Roque de los Muchachos.
Además de esto, y también en el marco de la observación de rayos gamma de muy alta energia, el IAC participa en la colaboración internacional CTA, cuyo objetivo es construir dos grandes complejos de observación en los hemisferios Norte y Sur. El Observatorio del Roque de los Muchachos, en La Palma, ha sido seleccionado para albergar el observatorio Norte. El primer telescopio de gran diámetro fue inaugurado en octubre de 2018 y actualmente estamos en la fase de construcción de otros tres.
Miembros
Investigador principal
Ramón
García López
Personal del proyecto
Mónica Luisa
Vázquez Acosta
Eduardo Colombo
Josefa
Becerra González
Rosa
Clavero Jiménez
Alicia
López Oramas
Jorge
Otero Santos
Colaboradores
Artemio
Herrero Davo
José Miguel
Herreros Linares
Marie Karjalianen
Resultados
- Inauguración del primer telescopio de gran diámetro (LST-1) de la red de telescopios Cherenkov (CTA) en el Observatorio del Roque de los Muchachos
- Detección de la procedencia de un neutrino originado en un "blazar" por parte de MAGIC, IceCube y Fermi-LAT
- Descubrimiento de la nueva binaria de rayos gamma de muy alta energía PSR J2032+4127/MT91 213
Actividad científica
Publicaciones relacionadas
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A search for optical and near-infrared counterparts of the compact binary merger GW190814We report on our observing campaign of the compact binary merger GW190814, detected by the Advanced LIGO and Advanced Virgo detectors on 2019 August 14. This signal has the best localization of any observed gravitational wave (GW) source, with a 90 per cent probability area of 18.5 deg 2, and an estimated distance of ≍240 Mpc. We obtained wideThakur, A. L. et al.
Fecha de publicación:
122020 -
Detection of the Geminga pulsar with MAGIC hints at a power-law tail emission beyond 15 GeVWe report the detection of pulsed gamma-ray emission from the Geminga pulsar (PSR J0633+1746) between 15 GeV and 75 GeV. This is the first time a middle-aged pulsar has been detected up to these energies. Observations were carried out with the MAGIC telescopes between 2017 and 2019 using the low-energy threshold Sum-Trigger-II system. After qualityMAGIC Collaboration et al.
Fecha de publicación:
112020 -
MAGIC observations of the diffuse γ-ray emission in the vicinity of the Galactic centerAims: In the presence of a sufficient amount of target material, γ-rays can be used as a tracer in the search for sources of Galactic cosmic rays (CRs). Here we present deep observations of the Galactic center (GC) region with the MAGIC telescopes and use them to infer the underlying CR distribution and to study the alleged PeV proton acceleratorMAGIC Collaboration et al.
Fecha de publicación:
102020 -
HORuS transmission spectroscopy of 55 Cnc eThe High Optical Resolution Spectrograph (HORuS) is a new high-resolution echelle spectrograph available on the 10.4-m Gran Telescopio Canarias (GTC). We report on the first HORuS observations of a transit of the super-Earth planet 55 Cnc e. We investigate the presence of Na I and Hα in its transmission spectrum and explore the capabilities ofTabernero, H. M. et al.
Fecha de publicación:
82020 -
Testing two-component models on very high-energy gamma-ray-emitting BL Lac objectsContext. It has become evident that one-zone synchrotron self-Compton models are not always adequate for very high-energy (VHE) gamma-ray-emitting blazars. While two-component models perform better, they are difficult to constrain due to the large number of free parameters. Aims: In this work, we make a first attempt at taking into account theMAGIC Collaboration et al.
Fecha de publicación:
82020 -
Properties of Neon, Magnesium, and Silicon Primary Cosmic Rays Results from the Alpha Magnetic SpectrometerWe report the observation of new properties of primary cosmic rays, neon (Ne), magnesium (Mg), and silicon (Si), measured in the rigidity range 2.15 GV to 3.0 TV with 1.8 ×10 6 Ne , 2.2 ×10 6 Mg , and 1.6 ×10 6 Si nuclei collected by the Alpha Magnetic Spectrometer experiment on the International Space Station. The Ne and Mg spectra have identicalAguilar, M. et al.
Fecha de publicación:
52020 -
Studying the nature of the unidentified gamma-ray source HESS J1841-055 with the MAGIC telescopesWe investigate the physical nature and origin of the gamma-ray emission from the extended source HESS J1841-055 observed at TeV and GeV energies. We observed HESS J1841-055 at TeV energies for a total effective time of 43 h with the MAGIC telescopes, in 2012 and 2013. Additionally, we analysed the GeV counterpart making use of about 10 yr of FermiMAGIC Collaboration et al.
Fecha de publicación:
72020 -
Bounds on Lorentz Invariance Violation from MAGIC Observation of GRB 190114COn January 14, 2019, the Major Atmospheric Gamma Imaging Cherenkov telescopes detected GRB 190114C above 0.2 TeV, recording the most energetic photons ever observed from a gamma-ray burst. We use this unique observation to probe an energy dependence of the speed of light in vacuo for photons as predicted by several quantum gravity models. Based onAcciari, V. A. et al.
Fecha de publicación:
72020 -
An intermittent extreme BL Lac: MWL study of 1ES 2344+514 in an enhanced stateExtreme high-frequency BL Lacs (EHBL) feature their synchrotron peak of the broad-band spectral energy distribution (SED) at ν s ≥ 10 17 Hz. The BL Lac object 1ES 2344+514 was included in the EHBL family because of its impressive shift of the synchrotron peak in 1996. During the following years, the source appeared to be in a low state withoutMAGIC Collaboration et al.
Fecha de publicación:
62020 -
Broadband characterisation of the very intense TeV flares of the blazar 1ES 1959+650 in 20161ES 1959+650 is a bright TeV high-frequency-peaked BL Lac object exhibiting interesting features like "orphan" TeV flares and broad emission in the high-energy regime that are difficult to interpret using conventional one-zone Synchrotron Self-Compton (SSC) scenarios. We report the results from the Major Atmospheric Gamma Imaging Cherenkov (MAGIC)MAGIC Collaboration et al.
Fecha de publicación:
62020 -
Optical spectral characterization of the TeV extreme blazar 2WHSP J073326.7+515354The emission from the relativistic jets in blazars usually outshines their host galaxies, challenging the determination of their distances and the characterization of the stellar population. The situation becomes more favourable in the case of the extreme blazars (EHBLs), for which the bulk of the emission of the relativistic jets is emitted atBecerra González, J. et al.
Fecha de publicación:
42020 -
Study of the variable broadband emission of Markarian 501 during the most extreme Swift X-ray activityContext. Markarian 501 (Mrk 501) is a very high-energy (VHE) gamma-ray blazar located at z = 0.034, which is regularly monitored by a wide range of multi-wavelength instruments, from radio to VHE gamma rays. During a period of almost two weeks in July 2014, the highest X-ray activity of Mrk 501 was observed in ∼14 years of operation of the NeilMAGIC Collaboration et al.
Fecha de publicación:
52020 -
Broad-band spectral energy distribution of the X-ray transient Swift J1745-26 from outburst to quiescenceAims: We aim to analyse our study of the X-ray transient Swift J1745-26, using observations obtained from its outburst in September 2012, up to its decay towards quiescence in March 2013. Methods: We obtained optical and infrared observations, through override programme at ESO/VLT with FORS2 and ISAAC instruments, and added archival optical (VLTChaty, Sylvain et al.
Fecha de publicación:
52020 -
The Fourth Catalog of Active Galactic Nuclei Detected by the Fermi Large Area TelescopeThe fourth catalog of active galactic nuclei (AGNs) detected by the Fermi Gamma-ray Space Telescope Large Area Telescope (4LAC) between 2008 August 4 and 2016 August 2 contains 2863 objects located at high Galactic latitudes (| b| > 10°). It includes 85% more sources than the previous 3LAC catalog based on 4 yr of data. AGNs represent at least 79%Ajello, M. et al.
Fecha de publicación:
42020 -
A search for dark matter in Triangulum II with the MAGIC telescopesWe present the first results from very-high-energy observations of the dwarf spheroidal satellite candidate Triangulum II with the MAGIC telescopes from 62.4 h of good-quality data taken between August 2016 and August 2017. We find no gamma-ray excess in the direction of Triangulum II, and upper limits on both the differential and integral gammaAcciari, V. A. et al.
Fecha de publicación:
52020 -
MAGIC very large zenith angle observations of the Crab Nebula up to 100 TeVAims: We measure the Crab Nebula γ-ray spectral energy distribution in the ~100 TeV energy domain and test the validity of existing leptonic emission models at these high energies. Methods: We used the novel very large zenith angle observations with the MAGIC telescope system to increase the collection area above 10 TeV. We also developed anMAGIC Collaboration et al.
Fecha de publicación:
32020 -
Fermi Large Area Telescope Fourth Source CatalogWe present the fourth Fermi Large Area Telescope catalog (4FGL) of γ-ray sources. Based on the first eight years of science data from the Fermi Gamma-ray Space Telescope mission in the energy range from 50 MeV to 1 TeV, it is the deepest yet in this energy range. Relative to the 3FGL catalog, the 4FGL catalog has twice as much exposure as well as aAbdollahi, S. et al.
Fecha de publicación:
32020 -
New Hard-TeV Extreme Blazars Detected with the MAGIC TelescopesExtreme high-frequency-peaked BL Lac objects (EHBLs) are blazars that exhibit extremely energetic synchrotron emission. They also feature nonthermal gamma-ray emission whose peak lies in the very high-energy (VHE, E > 100 GeV) range, and in some sources exceeds 1 TeV: this is the case for hard-TeV EHBLs such as 1ES 0229+200. With the aim ofAcciari, V. A. et al.
Fecha de publicación:
32020 -
The Great Markarian 421 Flare of 2010 February: Multiwavelength Variability and Correlation StudiesWe report on variability and correlation studies using multiwavelength observations of the blazar Mrk 421 during the month of 2010 February, when an extraordinary flare reaching a level of ̃27 Crab Units above 1 TeV was measured in very high energy (VHE) γ-rays with the Very Energetic Radiation Imaging Telescope Array System (VERITAS) observatoryAbeysekara, A. U. et al.
Fecha de publicación:
22020 -
Quasi-periodic behaviour in the optical and γ-ray light curves of blazars 3C 66A and B2 1633+38We report on quasi-periodic variability found in two blazars included in the Steward Observatory Blazar Monitoring data sample: the BL Lac object 3C 66A and the Flat Spectrum Radio Quasar B2 1633+38. We collect optical photometric and polarimetric data in V and R bands of these sources from different observatories: St. Petersburg UniversityOtero-Santos, J. et al.
Fecha de publicación:
32020
