Ballhausen, RalfKühnel, MatthiasPottschmidt, KatjaFürst, FelixHemphill, Paul B.Falkner, SebastianGottlieb, Amy M.Grinberg, VictoriaKretschmar, PeterKreykenbohm, IngoRothschild, Richard E.Wilms, Jörn2023-08-312023-08-312016-06-13Ballhausen, Ralf, Matthias Kühnel, Katja Pottschmidt, Felix Fürst, Paul B. Hemphill, Sebastian Falkner, Amy M. Gottlieb, et al. “Suzaku Observations of the 2013 Outburst of KS 1947+300.” Astronomy & Astrophysics 591 (July 1, 2016): A65. https://doi.org/10.1051/0004-6361/201527193.https://doi.org/10.1051/0004-6361/201527193http://hdl.handle.net/11603/29513We report on the timing and spectral analysis of two Suzaku observations with different flux levels of the high-mass X-ray binary KS 1947+300 during its 2013 outburst. In agreement with simultaneous NuSTAR observations, the continuum is well described by an absorbed power law with a cutoff and an additional blackbody component. In addition, we find fluorescent emission from neutral, He-like, and even H-like iron. We determine a pulse period of ~18.8 s with the source showing a spin-up between the two observations. Both Suzaku observations show very similar behavior of the pulse profile, which is strongly energy dependent. This profile has an evolution from a profile with one peak at low energies to a profile with two peaks of different widths toward higher energies seen in both the Suzaku and NuSTAR data. Such an evolution to a more complex profile at higher energies is rarely seen in X-ray pulsars, most cases show the opposite behavior. Pulse phase-resolved spectral analysis shows a variation in the absorbing column density, NH, over pulse phase. Spectra taken during the pulse profile minima are intrinsically softer compared to the pulse phase-averaged spectrum.9 pagesen-USThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.Attribution 4.0 International (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/Text