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X-ray properties of two complementary samples of intermediate Seyfert galaxies

Astrophysics of Galaxies 2024-02-06 v1 High Energy Astrophysical Phenomena

Abstract

We present the X-ray spectral analysis of two complementary sets of intermediate Seyfert galaxies (ISs). Analyzing X-ray data, we estimate the hydrogen abundance NHN_H and test its connection with the [O III] luminosity acquired from optical observations. The results confirm the conclusions drawn in a previous study concerning the lack of a direct correlation between the obscuration measure (NHN_H) and the intrinsic characteristics of the active nuclei ([O III] luminosity). Instead, we validate the existence of a correlation between the Seyfert type and the NHN_H parameter, employing a separation threshold of approximately 1022^{22} atoms cm2^{-2}. Simultaneously, our findings align with prior research, corroborating the relationship between X-ray luminosity and the [O III] luminosity.

Keywords

Cite

@article{arxiv.2402.01837,
  title  = {X-ray properties of two complementary samples of intermediate Seyfert galaxies},
  author = {Benedetta Dalla Barba and Luigi Foschini and Marco Berton and Luca Crepaldi and Amelia Vietri},
  journal= {arXiv preprint arXiv:2402.01837},
  year   = {2024}
}