A deep X-ray observation of the supernova remnant G304.6+0.1 (Kes 17) using Suzaku


  • F. Gök,

    Corresponding author
    1. Akdeniz University, Faculty of Education, Antalya 07058, Turkey
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  • A. Sezer

    Corresponding author
    1. TÜBİTAK Space Technologies Research Institute, ODTU Campus, Ankara 06531, Turkey
    2. Bogãziinline imagei University, Faculty of Art and Sciences, Department of Physics, Istanbul 34342, Turkey
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E-mail: gok@akdeniz.edu.tr (FG); aytap.sezer@boun.edu.tr (AS)


In this paper, we present the analysis of a deep (99.6 ks) observation of G304.6+0.1 with the X-ray Imaging Spectrometer on board the Suzaku satellite. The X-ray spectral data are well fitted with a plasma model consisting of a thermal component, in collisional ionization equilibrium, and a non-thermal component. The thermal emission is well fitted with the vmekal model with an electron temperature of kTe∼ 0.75 keV, a high absorbing column density of NH∼ 3.9 × 1022 cm−2 and near/lower solar abundances, which indicate that the X-ray emitting plasma of G304.6+0.1 is dominated by a swept-up ambient medium. The non-thermal component is well fitted with a power-law model with a photon index of Γ∼ 1.4. We have found a relatively high electron density ne∼ 2.3f−1/2 cm−3, an age t∼ 1.4 × 104f1/2 yr and an X-ray emitting mass Mx∼ 380f1/2 M at an adopted distance of d= 10 kpc. Using the morphological and spectral X-ray data, we confirm that the remnant is a new member of the mixed-morphology supernova remnants.