Fe II velocity shifts in optical spectra of type 1 AGN

E. Bon; P. Marziani; M. Berton; N. Bon; R. Antonucci; M. Gaskell; G. Ferland

doi:10.22323/1.328.0007

Fe II velocity shifts in optical spectra of type 1 AGN

E. Bon, P. Marziani, M. Berton, N. Bon, R. Antonucci, M. Gaskell, G. Ferland

Research output: Contribution to journal › Conference article › peer-review

Abstract

Here we present a critical view of practical problems in the analysis of optical Fe II emission lines of Type 1 AGN spectra. Besides the very complex and unclear physical interpretation of the Fe II template shape, there are other issues that might affect the results of Fe II contribution as well (like the S/N, the AGN continuum component modelling, the complex shapes of other broad and narrow emission lines that are blending in the same part of the spectrum, the galactic host stellar component that could lead to mimicking of the Fe II template shape on some parts of spectrum, etc.). In this paper we concentrate particularly on the claims of possibility that in some objects Fe II could be strongly shifted to the red. We examine the effects in the fitting procedure that could artificially lead to such results.

Original language	English
Journal	Proceedings of Science
Volume	328
DOIs	https://doi.org/10.22323/1.328.0007
State	Published - 2018
Event	2018 Revisiting Narrow-Line Seyfert 1 Galaxies and their Place in the Universe, NLS1 2018 - Padova, Italy Duration: Apr 9 2018 → Apr 13 2018

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© Copyright owned by the author(s) under the terms of the Creative Commons.

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title = "Fe II velocity shifts in optical spectra of type 1 AGN",

abstract = "Here we present a critical view of practical problems in the analysis of optical Fe II emission lines of Type 1 AGN spectra. Besides the very complex and unclear physical interpretation of the Fe II template shape, there are other issues that might affect the results of Fe II contribution as well (like the S/N, the AGN continuum component modelling, the complex shapes of other broad and narrow emission lines that are blending in the same part of the spectrum, the galactic host stellar component that could lead to mimicking of the Fe II template shape on some parts of spectrum, etc.). In this paper we concentrate particularly on the claims of possibility that in some objects Fe II could be strongly shifted to the red. We examine the effects in the fitting procedure that could artificially lead to such results.",

author = "E. Bon and P. Marziani and M. Berton and N. Bon and R. Antonucci and M. Gaskell and G. Ferland",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons.; 2018 Revisiting Narrow-Line Seyfert 1 Galaxies and their Place in the Universe, NLS1 2018 ; Conference date: 09-04-2018 Through 13-04-2018",

year = "2018",

doi = "10.22323/1.328.0007",

language = "English",

volume = "328",

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TY - JOUR

T1 - Fe II velocity shifts in optical spectra of type 1 AGN

AU - Bon, E.

AU - Marziani, P.

AU - Berton, M.

AU - Bon, N.

AU - Antonucci, R.

AU - Gaskell, M.

AU - Ferland, G.

PY - 2018

Y1 - 2018

N2 - Here we present a critical view of practical problems in the analysis of optical Fe II emission lines of Type 1 AGN spectra. Besides the very complex and unclear physical interpretation of the Fe II template shape, there are other issues that might affect the results of Fe II contribution as well (like the S/N, the AGN continuum component modelling, the complex shapes of other broad and narrow emission lines that are blending in the same part of the spectrum, the galactic host stellar component that could lead to mimicking of the Fe II template shape on some parts of spectrum, etc.). In this paper we concentrate particularly on the claims of possibility that in some objects Fe II could be strongly shifted to the red. We examine the effects in the fitting procedure that could artificially lead to such results.

AB - Here we present a critical view of practical problems in the analysis of optical Fe II emission lines of Type 1 AGN spectra. Besides the very complex and unclear physical interpretation of the Fe II template shape, there are other issues that might affect the results of Fe II contribution as well (like the S/N, the AGN continuum component modelling, the complex shapes of other broad and narrow emission lines that are blending in the same part of the spectrum, the galactic host stellar component that could lead to mimicking of the Fe II template shape on some parts of spectrum, etc.). In this paper we concentrate particularly on the claims of possibility that in some objects Fe II could be strongly shifted to the red. We examine the effects in the fitting procedure that could artificially lead to such results.

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U2 - 10.22323/1.328.0007

DO - 10.22323/1.328.0007

M3 - Conference article

AN - SCOPUS:85073754355

VL - 328

JO - Proceedings of Science

JF - Proceedings of Science

T2 - 2018 Revisiting Narrow-Line Seyfert 1 Galaxies and their Place in the Universe, NLS1 2018

Y2 - 9 April 2018 through 13 April 2018

ER -

Fe II velocity shifts in optical spectra of type 1 AGN

Abstract

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