Suzaku Constraints on Soft and Hard Excess Emissions from Abell 2199

The nearby (z = 0.03015) cluster of galaxies Abell 2199 was observed by Suzaku in X-rays, with five pointings for ∼20ks each. From the XIS data, the temperature and metal abundance profiles were derived out to ∼700 kpc (0.4 times the virial radius). Both of these quantities decrease gradually from the center to peripheries by a factor of ∼2, while the oxygen abundance tends to be flat. The temperature within 12' (∼430 kpc) is ∼4 keV, and the 0.5-10 keV X-ray luminosity integrated up to 30' is (2.9±0.1) × 10⁴⁴ erg s^-1, in agreement with previous XMM-Newton measurements. Above this thermal emission, no significant excess was found either in the XIS range below ∼1 keV, or in the HXD-PIN range above ∼15 keV. The 90%-confidence upper limit on the emission measure of an assumed 0.2 keV warm gas is (3.7-7.5) × 10⁶² cm^-3 arcmin^-2, which is 3.7-7.6 times tighter than the detection reported with XMM-Newton. The 90%-confidence upper limit on the 20-80 keV luminosity of any power-law component is 1.8 × 10⁴³ erg s^-1, assuming a photon index of 2.0. Although this upper limit does not reject the possible 2.1σ detection by the BeppoSAX PDS, it is a factor of 2.1 tighter than that of the PDS if both are considered upper limits. The non-detection of the hard excess can be reconciled with the upper limit on diffuse radio emission, without invoking very low magnetic fields (<0.073μG) which were suggested previously.