Publication of Astronomical Observatory of Belgrade, Vol. 105, 2024, Page 42, https://doi.org/10.69646/14sbac38a
BOOK OF ABSTRACTS: XIV Serbian-Bulgarian Astronomical Conference, 23 - 27 September, 2024, Vrnjačka Banja, Serbia. Editors: Milan S. Dimitrijević, Evgeni Semkov, Zoran Simić, Goran Damljanović, Momchil Dechev

We use the resulting parameters of the two different model decompositions of mid- infrared (MIR) Spitzer IRS spectra of 1) extragalactic sources – galaxies and 2) active galactic nuclei (AGN). These resulting parameters are spectral components such as the AGN, PAH, H II, stellar contribution components, spectral index, silicate contribution, etc. It is found that some of these parameters correlate with X-ray hardness ratios (especially HR1). This reveals the insight in the energy bands of X-ray radiation that influences the MIR parameters and it can point to the AGN sources that are more obscured. HR1 correlations indicate the high attenuation of soft X-ray radiation by the dust.