The broadband X-ray spectrum of the X-ray obscured Type 1 AGN 2MASX J19301380+3410495
Abstract
We present results from modeling the broadband X-ray spectrum of the Seyfert 1.5 galaxy 2MASX J19301380+3410495 using NuSTAR, Swift/XRT and archival XMM-Newton observations. We find this source to be highly obscured, with column densities exceeding 1023 cm-2 across all epochs, yet it consistently exhibits prominent broad optical emission lines. We fit the X-ray spectra with both phenomenological reflection models and physically-motivated torus models, and find that the source exhibits a moderate Compton hump with a fairly weak Fe Kα line (EW ~ 82 eV). We also find the source possesses a coronal temperature that is atypically low compared to the local Seyfert population (kT ~ 37 keV). We discuss possible scenarios to explain mismatches between optical and X-ray classifications and the implications of low coronal temperatures on the heating and thermalization mechanisms in the corona.
- Publication:
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AAS/High Energy Astrophysics Division
- Pub Date:
- March 2019
- Bibcode:
- 2019HEAD...1710639K