Aims: We present optical photometry and spectroscopy of the afterglow and host galaxy of gamma-ray burst GRB 040924. This GRB had a rather short duration of T90...
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PublicaciónSpectroscopy and multiband photometry of the afterglow of intermediate duration γ-ray burst GRB 040924 and its host galaxy
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PublicaciónStatistical redshift of the very-high-energy blazar S5 0716+714
Context. Blazars are the most numerous class of very-high-energy (VHE; E > 100 GeV) gamma-ray emitters. At present, measured redshifts are available only for...
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PublicaciónStatistics of VHE γ-rays in temporal association with radio giant pulses from the Crab pulsar
Aims: The aim of this study is to search for evidence of a common emission engine between radio giant pulses (GPs) and very-high-energy (VHE, E > 100 GeV) γ...
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PublicaciónStudy of the GeV to TeV morphology of the γ Cygni SNR (G 78.2+2.1) with MAGIC and Fermi-LAT. Evidence for cosmic ray escape
Context. Diffusive shock acceleration (DSA) is the most promising mechanism that accelerates Galactic cosmic rays (CRs) in the shocks of supernova remnants...
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PublicaciónStudy of the variable broadband emission of Markarian 501 during the most extreme Swift X-ray activity
Context. 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...
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PublicaciónSuper-orbital variability of LS I +61°303 at TeV energies
Context. The gamma-ray binary LS I +61°303 is a well-established source from centimeter radio up to very high energy (VHE; E> 100 GeV). The broadband emission...
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PublicaciónSystematic Search for VHE Gamma-Ray Emission from X-Ray-bright High-Frequency BL Lac Objects
All but three (M87, BL Lac, and 3C 279) extragalactic sources detected so far at very high energy γ-rays belong to the class of high-frequency-peaked BL Lac...
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NoticiaTakaaki Kajita: "La detección de rayos gamma con CTA será clave para el descubrimiento de nuevas fuentes de emisión de neutrinos"
El científico japonés Takaaki Kajita es uno de los principales expertos mundiales en física de neutrinos. Estas partículas tienen una masa ínfima, por lo que...
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PublicaciónTeraelectronvolt pulsed emission from the Crab Pulsar detected by MAGIC
Aims: We investigate the extension of the very high-energy spectral tail of the Crab Pulsar at energies above 400 GeV. Methods: We analyzed ~320 h of good...