Reverberation mapping for Mrk 817 and NGC 7469 Virtual Observatory Resource

Authors
  1. Lu K.-X.
  2. Wang J.-G.
  3. Zhang Z.-X.
  4. Huang Y.-K.
  5. Xu L.
  6. Xin Y.-X.
  7. Yu X.-G.,Ding Xu
  8. Wang D.-Q.
  9. Feng H.-C.
  10. Published by
    CDS
Abstract

We present the results from a spectroscopic monitoring campaign to obtain reverberation mapping measurements and investigate the broad-line region (BLR) kinematics for active galactic nuclei (AGNs) of Mrk 817 and NGC 7469. This campaign was undertaken with the Lijiang 2.4m telescope. The median spectroscopic sampling is 2.0d for Mrk817 and 1.0d for NGC 7469. We detect time lags of the broad emission lines, including H{beta}, H{gamma}, HeII, and HeI for both AGNs, including FeII for Mrk 817 with respect to the varying AGN continuum at 5100{AA}. Investigating the relationship between line widths and time lags of the broad emission lines, we find that the BLR dynamics of Mrk 817 and NGC 7469 are consistent with the virial prediction. We estimate the masses of central supermassive black holes (SMBHs) and the accretion rates of both AGNs. Using the data of this campaign, we construct the velocity-resolved lag profiles of the broad H{gamma}, H{beta}, and HeI lines for Mrk 817, which show almost the same kinematic signatures in that the time lags in the red wing are slightly larger than the time lags in the blue wing. For NGC 7469, we only clearly construct the velocity-resolved lag profiles of the broad H{gamma} and H{beta}, which show very similar kinematic signatures to the BLR of Mrk 817. These signatures indicate that the BLR of Keplerian motion in both AGNs seemingly has outflowing components during the monitoring period. We discuss the kinematics of the BLR and the measurements, including SMBH mass and accretion rates.

Keywords
  1. active-galactic-nuclei
  2. seyfert-galaxies
  3. visible-astronomy
  4. spectroscopy
Bibliographic source Bibcode
2021ApJ...918...50L
See also HTML
https://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/918/50
IVOA Identifier IVOID
ivo://CDS.VizieR/J/ApJ/918/50
Document Object Identifer DOI
doi:10.26093/cds/vizier.19180050

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History

2023-02-27T09:30:55Z
Resource record created
2023-02-27T09:30:55Z
Created
2023-10-06T11:43:49Z
Updated

Contact

Name
CDS support team
Postal Address
CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France
E-Mail
cds-question@unistra.fr