BASS. XXVIII. Near-infrared Data Release 2: High-ionization and Broad Lines in Active Galactic Nuclei

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dc.contributor.authorden Brok, Jakob S.
dc.contributor.authorKoss, Michael J.
dc.contributor.authorTrakhtenbrot, Benny
dc.contributor.authorStern, Daniel
dc.contributor.authorCantalupo, Sebastiano
dc.contributor.authorLamperti, Isabella
dc.contributor.authorRicci, Federica
dc.contributor.authorRicci, Claudio
dc.contributor.authorOh, Kyuseok
dc.contributor.authorBauer, Franz E.
dc.contributor.authorRiffel, Rogerio
dc.contributor.authorRodriguez-Ardila, Alberto
dc.contributor.authorBaer, Rudolf
dc.contributor.authorHarrison, Fiona
dc.contributor.authorIchikawa, Kohei
dc.contributor.authorMejia-Restrepo, Julian E.
dc.contributor.authorMushotzky, Richard
dc.contributor.authorPowell, Meredith C.
dc.contributor.authorBoissay-Malaquin, Rozenn
dc.contributor.authorStalevski, Marko
dc.contributor.authorTreister, Ezequiel
dc.contributor.authorUrry, C. Megan
dc.contributor.authorVeilleux, Sylvain
dc.date.accessioned2025-01-20T21:04:20Z
dc.date.available2025-01-20T21:04:20Z
dc.date.issued2022
dc.description.abstractWe present the BAT AGN Spectroscopic Survey (BASS) Near-infrared Data Release 2 (DR2), a study of 168 nearby ((z) over bar = 0.04, z < 0.6) active galactic nuclei (AGN) from the all-sky Swift Burst Array Telescope X-ray survey observed with the Very Large Telescope (VLT)/X-shooter in the near-infrared (NIR; 0.8-2.4 mu m). We find that 49/109 (45%) Seyfert 2 and 35/58 (60%) Seyfert 1 galaxies observed with VLT/X-shooter show at least one NIR high-ionization coronal line (CL; ionization potential chi > 100 eV). Comparing the emission of the [Si VI] lambda 1.9640 CL with the X-ray emission for the DR2 AGN, we find a significantly tighter correlation, with a lower scatter (0.37 dex) than that for the optical [O III] lambda 5007 line (0.71 dex). We do not find any correlation between CL emission and the X-ray photon index Gamma. We find a clear trend of line blueshifts with increasing ionization potential in several CLs, such as [Si VI] lambda 1.9640, [Si X] lambda 1.4300, [S VIII] lambda 0.9915, and [S IX] lambda 1.2520, indicating the radial structure of the CL region. Finally, we find a strong underestimation bias in black hole mass measurements of Sy 1.9 using broad H alpha due to the presence of significant dust obscuration. In contrast, the broad Pa alpha and Pa beta emission lines are in agreement with the M-sigma relation. Based on the combined DR1 and DR2 X-shooter sample, the NIR BASS sample now comprises 266 AGN with rest-frame NIR spectroscopic observations, the largest set assembled to date.
dc.fuente.origenWOS
dc.identifier.doi10.3847/1538-4365/ac5b66
dc.identifier.eissn1538-4365
dc.identifier.issn0067-0049
dc.identifier.urihttps://doi.org/10.3847/1538-4365/ac5b66
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/93234
dc.identifier.wosidWOS:000825863300001
dc.issue.numero1
dc.language.isoen
dc.revistaAstrophysical journal supplement series
dc.rightsacceso restringido
dc.titleBASS. XXVIII. Near-infrared Data Release 2: High-ionization and Broad Lines in Active Galactic Nuclei
dc.typeartículo
dc.volumen261
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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