We present an X-ray study of the galaxy group RGH 80 , observed by XMM-Newton .
The X-ray emission of the gas is detected out to \sim 462 h ^ { -1 } _ { 50 } kpc , corresponding to \sim 0.45 r _ { 200 } .
The group is relatively gas rich and luminous with respect to its temperature of 1.01 \pm 0.01 keV .
Using the deprojected spectral analysis , we find that the temperature peaks at \sim 1.3 keV around 0.11 r _ { 200 } , and then decreases inwards to 0.83 keV at the center and outwards to \sim 70 \% of the peak value at large radii .
Within the central \sim 60 kpc of the group where the gas cooling time is less than the Hubble time , two-temperature model with temperatures of 0.82 and 1.51 keV and the Galactic absorption gives the best fit of the spectra , with \sim 20 \% volume occupied by the cool component .
We also derive the gas entropy distribution , which is consistent with the prediction of cooling and/or internal heating models .
Furthermore , the abundances of O , Mg , Si , S , and Fe decrease monotonically with radius .
With the observed abundance ratio pattern , we estimate that \sim 85 \% or \sim 72 \% of the iron mass is contributed by SN Ia , depending on the adopted SN II models .