We report on the first deeper X-ray broad-band observation of the hot spot galaxy NGC 2903 obtained with XMM-Newton .
X-ray imaging and spectra of the spiral barred galaxy NGC 2903 were obtained from XMM-Newton archival data to study its X-ray population and the conditions of the hot gas in its central region .
We investigate the spectral properties of the discrete point-source population and give estimates of their X-ray spectral parameters .
By analysing the RGS spectra , we derive temperature and abundances for the hot gas located in its central region .
A total of six X-ray point sources ( four of them ULX candidates ) were detected in the energy range of 0.3–10.0 keV located within the galaxy D _ { 25 } optical disk .
Three out these sources are detected for the first time , and one of them , XMM-NGC2903 X2 with a luminosity of higher than 10 ^ { 39 } erg s ^ { -1 } .
After fitting three different models , we were able to estimate their luminosities , which are compatible with those of binaries with a compact object in the form of black holes ( BHs ) rather than neutron stars ( NSs ) .
We extracted the combined first-order RGS1 and RGS2 spectra of its central region , which display several emission lines .
The spectrum is dominated by a strong O viii Ly \alpha emission line along with Ne x Ly \alpha and several Fe xvii features .
The O vii complex is also significantly detected , although only the forbidden and resonance lines could be resolved .
Both O vii f and r lines seem to be of similar strength , which is consistent with the presence of the collisionally ionized gas that is typical of starburst galaxies .
We fitted the spectrum to a model for a plasma in collisional ionization equilibrium ( CIE ) and the continuum was modelled with a power law , resulting in a plasma temperature of T = 0.31 \pm 0.01 keV and an emission measure EM \equiv n _ { H } n _ { e } V = 6.4 _ { -0.4 } ^ { +0.5 } \times 10 ^ { 61 } cm ^ { -3 } .
We also estimated abundances that are consistent with solar values .