Table · dataset · 2022
Reverberation mapping monitoring of NGC3516
Listed in IVOA Registry (Virtual Observatory)
The changes of broad emission lines should be a crucial issue in understanding the physical properties of changing-look active galactic nuclei (CL-AGNs).
Description
Here we present the results of an intensive and homogeneous 6 month long reverberation mapping (RM) monitoring campaign during a low-activity state of the CL-AGN Seyfert galaxy NGC3516. Photometric and spectroscopic monitoring was carried out during 2018-2019 with the Lijiang 2.4m telescope.
The sampling is 2d in most nights, and the average sampling is ~3d. The rest-frame time lags of H{alpha} and H{beta} are {tau}_H{alpha}_=7.56_-2.10_^+4.42^ and {tau}_H{beta_}=7.50_-0.77_^+2.05^days, respectively. From an rms H{beta} line dispersion of {sigma}_line_=1713.3+/-46.7km/s and a virial factor of f_{sigma}_=5.5, the central black hole mass of NGC3516 is estimated to be M_BH_=2.4_-0.3_^+0.7^x10^7^M_{sun}_, which is in agreement with previous estimates.
Read the rest (2 more)
The velocity-resolved delays show that the time lags increase toward negative velocity for both H{alpha} and H{beta}. The velocity-resolved RM of H{alpha} is done for the first time. These RM results are consistent with other observations before the spectral-type change, indicating a basically constant broad-line region structure during the CL process.
The CL model of changes of accretion rate seems to be favored by long-term H{beta} variability and RM observations of NGC 3516.
Links
Where it is published
- Reference page cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/909/18 ↗
landing page · from IVOA Registry
Documentation and papers
- ADS 2021ApJ...909...18F ui.adsabs.harvard.edu/abs/2021ApJ...909...18F ↗
publication · from IVOA Registry
Catalogue records · 2
- VOResource record dc.g-vo.org/oai.xml?verb=GetRecord&metadataPrefix=ivo_vor&identifier=ivo%3… ↗
metadata API · from IVOA Registry
- Registry record (GAVO) dc.g-vo.org/I/cds.vizier/j/apj/909/18 ↗
catalogue entry · from IVOA Registry
Topics
- Stated by source
- Optical
- From keywords
- Astronomy & Astrophysics
- Inferred from text
- Astronomical sciences 73%
Provenance · 1 source records, 9 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| IVOA Registry (Virtual Observatory) | ivo://cds.vizier/j/apj/909/18 | 15 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[field].anzsrc:group:5101 | enrichment · IVOA Registry | taxonomy-embedding@1.1.0 | title+keywords+description (73%) |
| concepts[field].local:field:astronomy | mapping · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| concepts[modality].ivoa_waveband:optical | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| description | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_description |
| license_text | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| publication_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 | |
| title | source · IVOA Registry | connector:ivoa_registry@1.0.0 | rr.resource.res_title |
| updated_date | source · IVOA Registry | connector:ivoa_registry@1.0.0 |