Motivated by the Costamante & Ghisellini ( 2002 ) predictions we investigated if the blazar 1ES 1727+502 ( z = 0.055 ) is emitting very high energy ( VHE , E > 100 GeV ) \gamma rays .
We observed the BL Lac object 1ES 1727+502 in stereoscopic mode with the two MAGIC telescopes during 14 nights between May 6th and June 10th 2011 , for a total effective observing time of 12.6 hours .
For the study of the multiwavelength spectral energy distribution ( SED ) we use simultaneous optical R -band data from the KVA telescope , archival UV/optical and X-ray observations by instruments UVOT and XRT on board of the Swift satellite and high energy ( HE , 0.1 GeV - 100 GeV ) \gamma –ray data from the Fermi -LAT instrument .
We detect , for the first time , VHE \gamma –ray emission from 1ES 1727+502 at a statistical significance of 5.5 \sigma .
The integral flux above 150 GeV is estimated to be ( 2.1 \pm 0.4 ) \% of the Crab Nebula flux and the de-absorbed VHE spectrum has a photon index of ( 2.7 \pm 0.5 ) .
No significant short-term variability was found in any of the wavebands presented here .
We model the SED using a one-zone synchrotron self-Compton model obtaining parameters typical for this class of sources .