XMM Newton Observation of Low Energy Peaked BL Lac Object S 5 0716 + 714

This paper contains spectral and temporal information obtained from analyzing BL Lacertae object S5 0716+71. The broadband spectral energy distribution of this object is known to have two components, with the synchrotron emission peaking in the optical and the higher energy component taking over at X-ray energies, believed to be of inverse-Compton origin. Here we analyze XMM-Newton observations of S5 0716+71 obtained on April 4-5, 2004. During the observation, the object displayed significant variability, including a major flare in the last few hours. Light curves and spectra were created and analyzed to look for evidence of spectral variability. A previous analysis of this data set has been done by Ferrero et al. [1]; we discuss differences. The data shows that the X-ray emission for this object requires two components, likely due to the synchrotron and inverse-Compton processes. Interestingly, very little correlation was seen between the emission strength and the spectral slope, likely indicating that the synchrotron component varies but that the slope of the component does not change. This analysis of XMM-Newton data of S5 0716+71 is a work in process and there may be several aspects where conclusions may evolve slightly in the future.