Bibcode
Zanin, R.; Wu, M. H.; Will, M.; Ward, J. E.; Vovk, I.; Vazquez Acosta, M.; Vanzo, G.; Treves, A.; Toyama, T.; Torres, D. F.; Tescaro, D.; Teshima, M.; Temnikov, P.; Terzić, T.; Tavecchio, F.; Takalo, L.; Surić, T.; Strzys, M.; Stamerra, A.; Sobczynska, D.; Sitarek, J.; Snidaric, I.; Sillanpää, A.; Schweizer, T.; Schroeder, S.; Satalecka, K.; Saito, T.; Rico, J.; Ribó, M.; Rhode, W.; Reichardt, I.; Garcia, J. R.; Puljak, I.; Prada Moroni, P. G.; Prandini, E.; Poutanen, J.; Persic, M.; Perri, L.; Peresano, M.; Paredes-Fortuny, X.; Pedaletti, G.; Paoletti, R.; Paredes, J. M.; Palatiello, M.; Paneque, D.; Palacio, J.; Paiano, S.; Nogués, L.; Noda, K.; Nishijima, K.; Nilsson, K.; Niedzwiecki, A.; Nievas Rosillo, M.; Nakajima, D.; Neustroev, V.; Moretti, E.; Moralejo, A.; Miranda, J. M.; Mirzoyan, R.; Mazin, D.; Menzel, U.; Mariotti, M.; Martínez, M.; Marcote, B.; Mannheim, K.; Maraschi, L.; Mallot, K.; Maneva, G.; Manganaro, M.; Makariev, M.; Majumdar, P.; López, M.; López-Coto, R.; Longo, F.; Lombardi, S.; Lindfors, E.; La Barbera, A.; Lelas, D.; Kushida, J.; Kubo, H.; Konno, Y.; Idec, W.; Kodani, K.; Hughes, G.; Hrupec, D.; Hose, J.; Hayashida, M.; Herrera, J.; Hadasch, D.; Hahn, A.; Guberman, D.; Gora, D.; Godinović, N.; Giammaria, P.; Gaug, M.; Garczarczyk, M.; Garrido Terrats, D.; García López, R. J.; Frantzen, K.; Fruck, C. et al.
Bibliographical reference
Astronomy and Astrophysics, Volume 602, id.A98, 5 pp.
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6
2017
Journal
Citations
4
Refereed citations
4
Description
Context. In this work we present data from observations with the MAGIC
telescopes of SN 2014J detected on January 21 2014, the closest Type Ia
supernova since Imaging Air Cherenkov Telescopes started to operate. Aims: We aim to probe the possibility of very-high-energy (VHE; E
≥ 100 GeV) gamma rays produced in the early stages of Type Ia
supernova explosions. Methods: We performed follow-up
observations after this supernova (SN) explosion for five days, between
January 27 and February 2 2014. We searched for gamma-ray signals in the
energy range between 100 GeV and several TeV from the location of SN
2014J using data from a total of 5.5 h of observations. Prospects for
observing gamma rays of hadronic origin from SN 2014J in the near future
are also being addressed. Results: No significant excess was
detected from the direction of SN 2014J. Upper limits at 95% confidence
level on the integral flux, assuming a power-law spectrum, dF/dE ∝
E- Γ, with a spectral index of Γ = 2.6, for
energies higher than 300 GeV and 700 GeV, are established at 1.3 ×
10-12 and 4.1 × 10-13 photons
cm-2 s-1, respectively. Conclusions: For
the first time, upper limits on the VHE emission of a Type Ia supernova
are established. The energy fraction isotropically emitted into TeV
gamma rays during the first 10 days after the supernova explosion for
energies greater than 300 GeV is limited to 10-6 of the total
available energy budget ( 1051 erg). Within the assumed
theoretical scenario, the MAGIC upper limits on the VHE emission suggest
that SN 2014J will not be detectable in the future by any current or
planned generation of Imaging Atmospheric Cherenkov Telescopes.
Related projects
Particle Astrophysics
The MAGIC Collaboration is integrated by 20 research institutes and university departments from Armenia, Bulgaria, Finland, Germany, Italy, Poland, Spain, Switzerland and USA. The collaboration comprises two 17m diameter telescopes, located at the Roque de los Muchachos Observatory, designed to measure the Cherenkov radiation associated with
Ramón
García López