Survey of bare z<0.2 AGNs. I. X-ray soft excess

We analyze a sample of 21 "bare" Seyfert 1 active galactic nuclei, a subclass of Seyfert 1 galaxies, with intrinsic absorption N_H_~10^20^cm^-2^, in the local Universe (z<0.2) using XMM-Newton and Swift/XRT observations. The luminosities of the primary continuum, the X-ray emission in the 3-10keV energy range, and the soft excess --the excess emission that appears above the low-energy extrapolation of the power-law fit of 3-10keV X-ray spectra-- are calculated. Our spectral analysis reveals that the long-term intrinsic luminosities of the soft excess and the primary continuum are tightly correlated (L_PC_{propto}L_SE_^1.1+/-0.04^). We also found that the luminosities are correlated for each source. This result suggests that both the primary continuum and soft excess emissions exhibit a dependency on the accretion rate in a similar way.

Cone search capability for table J/ApJS/269/15/sample (information (Table 1) and correlations between primary continuum and soft excesses (Table 3))

Identifier
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/ApJS/269/15
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/269/15
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/269/15
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/ApJS/269/15
Provenance
Creator Nandi P.; Chatterjee A.; Jana A.; Chakrabarti S.K.; Naik S.; Safi-Harb S.,Chang H.-K.; Heyl J.
Publisher CDS
Publication Year 2024
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Cosmology; Galactic and extragalactic Astronomy; High Energy Astrophysics; Natural Sciences; Physics; Stellar Astronomy