Very-high-energy gamma-ray observations of the Type Ia Supernova SN 2014J with the MAGIC telescopes

Abstract

In this work we present data from observations with the MAGIC telescopes of SN 2014J detected in January 21 2014, the closest Type Ia supernova since Imaging Air Cherenkov Telescopes started to operate. We probe the possibility of very-high-energy (VHE; $E\ge 100$ GeV) gamma rays produced in the early stages of Type Ia supernova explosions. We performed follow-up observations after this supernova explosion for 5 days, between January 27 and February 2 in 2014. We search for gamma-ray signal in the energy range between 100 GeV and several TeV from the location of SN 2014J using data from a total of $\sim 5.5$ hours of observations. Prospects for observing gamma-rays of hadronic origin from SN 2014J in the near future are also being addressed. 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, d$F/$d$E\propto E^{-\Gamma }$, with a spectral index of $\Gamma =2.6$, for energies higher than 300 GeV and 700 GeV, are established at $1.3\times 10^{-12}$ and $4.1\times 10^{-13}$ photons~cm${}^{-2}$s${}^{-1}$, respectively. 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 $\sim 10$ days after the supernova explosion for energies greater than 300 GeV is limited to $10^{-6}$ of the total available energy budget ($\sim 10^{51}$ 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.

5 pages, 2 figures. Accepted for publication in A&A

References in corpus (10)

• The major upgrade of the MAGIC telescopes, Part II: A performance study using observations of the Crab Nebula
• VHE Gamma-Ray Observation of the Crab Nebula and its Pulsar with the MAGIC telescope
• A connection between star formation activity and cosmic rays in the starburst galaxy M 82
• Extensive HST Ultraviolet Spectra and Multi-wavelength Observations of SN 2014J in M82 Indicate Reddening and Circumstellar Scattering by Typical Dust
• The rise of SN2014J in the nearby galaxy M82
• No X-rays from the very nearby Type Ia SN2014J: constraints on its environment
• The peculiar extinction law of SN2014J measured with The Hubble Space Telescope
• Constraints on the progenitor system and the environs of SN 2014J from deep radio observations
• Optical and Near-Infrared Polarimetry of Highly Reddened Type Ia Supernova 2014J: Peculiar Properties of Dust in M82
• Swift Ultraviolet Observations of Supernova 2014J in M82: Large Extinction from Interstellar Dust

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