Artículos de revistas
Spectropolarimetry of NGC 3783 and Mrk 509: evidence for powerful nuclear winds in Seyfert 1 galaxies
Fecha
2021Registro en:
Monthly Notices of The Royal Astronomical Society Volume 507 Issue 1 Page 579-593 Oct 2021
10.1093/mnras/stab1751
Autor
Lira Teillery, Paulina María
Kishimoto, M.
Goosmann, R. W.
Campos, R.
Axon, D.
Elvis, M.
Lawrence, A.
Peterson, B. M.
Robinson, A.
Institución
Resumen
We present results from high signal-to-noise optical spectropolarimetric observations of the Seyfert 1 galaxies NGC3783 and Mrk 509 in the 3500-7000 angstrom range. We find complex structure in the polarized emission for both objects. In particular, Position Angle (PA) changes across the Balmer lines show a distinctive 'M'-shaped profile that had not been observed in this detail before, but could represent a common trait in Seyfert 1 galaxies. In fact, while this shape is observed in all Balmer lines in NGC3783, Mrk 509 transitions into a 'M'-shaped PA profile for higher transitions lines. We have modelled the observed profiles using the STOKES radiative transfer code and assuming that the scattering region is co-spatial with the BLR and outflowing. The results give compelling new evidence for the presence of nuclear winds in these two Seyfert 1 galaxies.
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