Fe II velocity shifts in optical spectra of type 1 AGN

Journal
Date Issued
2018
Author(s)
Bon, E.
•
•
Berton, M.
•
Bon, N.
•
Antonucci, R.
•
Gaskell, M.
•
Ferland, G.
DOI
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.
Coverage
Revisiting Narrow-Line Seyfert 1 Galaxies and their Place in the Universe
Volume
328
Start page
7
Conferenece
Revisiting Narrow-Line Seyfert 1 Galaxies and their Place in the Universe
Conferenece place
Padova Botanical Garden, Italy
Conferenece date
9-13 April, 2018
Uri
Url
Issn Identifier
1824-8039
Ads BibCode
2018rnls.confE...7B
Rights
open.access
File(s)
Loading...
Thumbnail Image
Name

NLS1-2018_007.pdf

Description
Pdf editoriale
Size

511.52 KB

Format

Adobe PDF

Checksum (MD5)

a594472bb99ebbb108a5dc73fdba0e9b