4.0 Article

Fe II emission in active galactic nuclei

Related references

Note: Only part of the references are listed.
Article Astronomy & Astrophysics

Anomalous broad-line region responses to continuum variability in active galactic nuclei - I. Hβ variability

C. Martin Gaskell et al.

Summary: The study found that anomalous responses of the BLR are very common and likely occur in every object. The anomalies can begin on a timescale only slightly longer than the light-crossing time and last for a duration of the order of the characteristic timescale of variability of the optical continuum. Anomalies are larger when NGC 5548 is in a low state, but otherwise show no correlation with continuum variability.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2021)

Article Astronomy & Astrophysics

Reverberation Mapping Measurements of Black Hole Masses and Broad-line Region Kinematics in Mrk 817 and NGC 7469

Kai-Xing Lu et al.

Summary: The study utilized a spectroscopic monitoring campaign to investigate the BLR kinematics of Mrk 817 and NGC 7469, showing consistency with virial predictions. The results also indicated that during the monitoring period, the BLR of both AGNs seemingly has outflowing components.

ASTROPHYSICAL JOURNAL (2021)

Article Astronomy & Astrophysics

Improved Fe II Emission-line Models for AGNs Using New Atomic Data Sets

A. Sarkar et al.

Summary: Understanding Fe II emission in active galactic nuclei (AGNs) has been a challenge for decades, and recent research has incorporated new data to examine ultraviolet emission, showing different results depending on the data set used. By comparing predictions and observations, conclusions have been drawn that largely reproduce observed Fe II emissions and provide information on the Eigenvector 1 correlation in AGNs.

ASTROPHYSICAL JOURNAL (2021)

Article Astronomy & Astrophysics

Kinematics of the Broad-line Region of 3C 273 from a 10 yr Reverberation Mapping Campaign

Zhi-Xiang Zhang et al.

ASTROPHYSICAL JOURNAL (2019)

Article Astronomy & Astrophysics

The location of the dust causing internal reddening of active galactic nuclei

Clio Z. P. Heard et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2016)

Article Astronomy & Astrophysics

A TENTATIVE SIZE-LUMINOSITY RELATION FOR THE IRON EMISSION-LINE REGION IN QUASARS

Doron Chelouche et al.

ASTROPHYSICAL JOURNAL LETTERS (2014)

Article Astronomy & Astrophysics

Radiation pressure confinement - I. Ionized gas in the ISM of AGN hosts

Jonathan Stern et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2014)

Article Astronomy & Astrophysics

Modelling reverberation mapping data - II. Dynamical modelling of the Lick AGN Monitoring Project 2008 data set

Anna Pancoast et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2014)

Article Astronomy & Astrophysics

THE LICK AGN MONITORING PROJECT 2011: Fe II REVERBERATION FROM THE OUTER BROAD-LINE REGION

Aaron J. Barth et al.

ASTROPHYSICAL JOURNAL (2013)

Article Astronomy & Astrophysics

A NEAR-INFRARED TEMPLATE DERIVED FROM I Zw 1 FOR THE Fe II EMISSION IN ACTIVE GALAXIES

A. Garcia-Rissmann et al.

ASTROPHYSICAL JOURNAL (2012)

Article Astronomy & Astrophysics

NO EVIDENCE FOR A SYSTEMATIC Fe II EMISSION LINE REDSHIFT IN TYPE 1 ACTIVE GALACTIC NUCLEI

Jack W. Sulentic et al.

ASTROPHYSICAL JOURNAL LETTERS (2012)

Article Astronomy & Astrophysics

SPECTRAL OPTICAL MONITORING OF THE NARROW-LINE SEYFERT 1 GALAXY Ark 564

A. I. Shapovalova et al.

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES (2012)

Article Astronomy & Astrophysics

A combined optical and X-ray study of unobscured type 1 active galactic nuclei - I. Optical spectra and spectral energy distribution modelling

Chichuan Jin et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2012)

Article Astronomy & Astrophysics

PROBING THE FAINT END OF THE QUASAR LUMINOSITY FUNCTION AT z ∼ 4 IN THE COSMOS FIELD

H. Ikeda et al.

ASTROPHYSICAL JOURNAL LETTERS (2011)

Article Astronomy & Astrophysics

ANALYSIS OF OPTICAL Fe II EMISSION IN A SAMPLE OF ACTIVE GALACTIC NUCLEUS SPECTRA

Jelena Kovacevic et al.

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES (2010)

Article Astronomy & Astrophysics

The accuracy of supermassive black hole masses determined by the single-epoch spectrum (Dibai) method

N. G. Bochkarev et al.

ASTRONOMY LETTERS-A JOURNAL OF ASTRONOMY AND SPACE ASTROPHYSICS (2009)

Article Astronomy & Astrophysics

THE IRON ABUNDANCE IN GALACTIC PLANETARY NEBULAE

G. Delgado Inglada et al.

ASTROPHYSICAL JOURNAL (2009)

Article Astronomy & Astrophysics

What broad emission lines tell us about how active galactic nuclei work

C. Martin Gaskell

NEW ASTRONOMY REVIEWS (2009)

Article Physics, Multidisciplinary

Fe II emission spectra in AGN: observations and theoretical interpretation

Ekaterina Verner et al.

PHYSICA SCRIPTA (2009)

Article Astronomy & Astrophysics

On the size of the Fe II-emitting region in the AGN arakelian 120

Charles A. Kuehn et al.

ASTROPHYSICAL JOURNAL (2008)

Article Astronomy & Astrophysics

A SYSTEMATIC ANALYSIS OF Fe II EMISSION IN QUASARS: EVIDENCE FOR INFLOW TO THE CENTRAL BLACK HOLE

Chen Hu et al.

ASTROPHYSICAL JOURNAL (2008)

Article Astronomy & Astrophysics

FeII emission in 14 low-redshift quasars.: I.: Observations

Yumihiko Tsuzuki et al.

ASTROPHYSICAL JOURNAL (2006)

Article Astronomy & Astrophysics

Optical variability of the NLS1 galaxy Ark 564 in 1987-2004

V. T. Doroshenko et al.

ASTRONOMY REPORTS (2006)

Article Astronomy & Astrophysics

Reverberation measurements of the inner radius of the dust torus in nearby Seyfert 1 galaxies

M Suganuma et al.

ASTROPHYSICAL JOURNAL (2006)

Article Astronomy & Astrophysics

The jet power, radio loudness, and black hole mass in radio-loud active galactic nuclei

Y Liu et al.

ASTROPHYSICAL JOURNAL (2006)

Article Astronomy & Astrophysics

Variability of optical FeII complex in narrow-line Seyfert 1 galaxy NGC 4051

J Wang et al.

ASTRONOMY & ASTROPHYSICS (2005)

Article Astronomy & Astrophysics

The unusual emission line spectrum of IZw1

MP Véron-Cetty et al.

ASTRONOMY & ASTROPHYSICS (2004)

Article Astronomy & Astrophysics

Extinction due to amorphous carbon grains in red quasars from the Sloan Digital Sky Survey

B Czerny et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2004)

Article Astronomy & Astrophysics

Optical variability of narrow-line Seyfert 1 galaxies

ES Klimek et al.

ASTROPHYSICAL JOURNAL (2004)

Article Astronomy & Astrophysics

The origin of FeII emission in active galactic nuclei

JA Baldwin et al.

ASTROPHYSICAL JOURNAL (2004)

Article Astronomy & Astrophysics

Elucidating the correlation of the quasar FeII/MgII ratio with redshift

EM Verner et al.

ASTROPHYSICAL JOURNAL (2004)

Article Astronomy & Astrophysics

The relationship between radio luminosity and black hole mass in optically selected quasars

RJ McLure et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2004)

Article Astronomy & Astrophysics

HeII reverberation in active galactic nucleus spectra

MC Bottorff et al.

ASTROPHYSICAL JOURNAL (2002)

Article Astronomy & Astrophysics

On the black hole mass-radio luminosity relation for flat-spectrum radio-loud quasars

MJ Jarvis et al.

MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY (2002)

Article Astronomy & Astrophysics

X-Ray versus optical variations in the Seyfert 1 nucleus NGC 3516: A puzzling disconnectedness

D Maoz et al.

ASTRONOMICAL JOURNAL (2002)

Article Astronomy & Astrophysics

The Ly-edge paradox and the need for obscured QSOs

R Maiolino et al.

ASTRONOMY & ASTROPHYSICS (2001)

Review Astronomy & Astrophysics

An empirical ultraviolet template for iron emission in quasars as derived from I Zwicky 1

M Vestergaard et al.

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES (2001)

Article Astronomy & Astrophysics

X-ray and optical variability in NGC 4051 and the nature of narrow-line Seyfert 1 galaxies

BM Peterson et al.

ASTROPHYSICAL JOURNAL (2000)

Article Astronomy & Astrophysics

The FeII problem in NLS1s

S Collin et al.

NEW ASTRONOMY REVIEWS (2000)

Article Astronomy & Astrophysics

Locally optimally emitting clouds and the variable broad emission line spectrum of NGC 5548

KT Korista et al.

ASTROPHYSICAL JOURNAL (2000)

Article Astronomy & Astrophysics

Eigenvector 1: An optimal correlation space for active galactic nuclei

JW Sulentic et al.

ASTROPHYSICAL JOURNAL (2000)