First simultaneous multiwavelength observations of the BL Lac object 1ES1959+650 in a steady state with MAGIC and Suzaku/Swift

TL;DR

This study presents simultaneous multiwavelength observations of the BL Lac object 1ES1959+650 in a steady state, revealing stable emission across optical to TeV energies and modeling its spectral energy distribution with a one-zone SSC model.

Contribution

First simultaneous multiwavelength observations of 1ES1959+650 in a steady state, providing comprehensive data across optical, X-ray, and TeV bands.

Findings

Source was in a low VHE state (~10% Crab flux) but relatively high X-ray state.

No significant variability in VHE gamma-ray emission.

Spectral energy distribution fits a one-zone synchrotron self-Compton model.

Abstract

Simultaneous multiwavelength observations were conducted for the BL Lac object 1ES1959+650 in a steady state in May 2006 with the MAGIC telescope and the X-ray satellites Suzaku and Swift. Swift can also provide multi-filter photometry in the UV-optical band. The source was clearly detected in all observed energy bands, from the optical to TeV. With respect to previous observations the source was in a low state in the very high energy (VHE) band (~10% Crab flux above 300 GeV) but in a relatively high state in the X-ray band. The light curves showed rather stable activities, with no significant variability in the VHE gamma-ray emission and small variability (~10% amplitude) in the X-ray band. The observed spectral energy distribution in the steady state can be described by a one-zone synchrotron self-Compton model.