MCG 08-11-011 narrowband light curves

DOI

We report the results from a photometric reverberation mapping campaign carried out with the C18 telescope at the Wise Observatory from 2019 to 2020, targeting the active galactic nucleus MCG 08-11-011. The monitoring was conducted on a daily basis with specially designed narrowband filters, spanning from optical to near-infrared wavelengths (~4000 to 8000{AA}) and avoiding prominent broad emission lines. We aim to measure inter-band continuum time lags, determine the size-wavelength relation, and estimate the host-subtracted AGN luminosity for this system. We use the point-spread function (PSF) photometry to extract the continuum light curves and measure the inter-band time lags using several methods, including the interpolated cross-correlation function, the z-transformed discrete correlation function, a von Neumann estimator, JAVELIN (in spectroscopic and photometric mode), MICA, and a multivariate correlation function. We find wavelength-dependent lags, {tau}({lambda}), up to ~7 days between the multiband light curves of MCG 08-11-011. The observed lags are larger than predictions based on standard thin-disk theory by a factor of ~3-7. We discern a significantly steeper size-wavelength relation than expected for a geometrically thin and optically thick accretion disk, which may result from the contribution of diffuse continuum emission to the flux. These results are similar to those found by previous continuum reverberation mapping campaigns.

Identifier
DOI http://doi.org/10.26093/cds/vizier.36720132
Source https://dc.g-vo.org/rr/q/lp/custom/CDS.VizieR/J/A+A/672/A132
Related Identifier https://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/672/A132
Related Identifier http://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/672/A132
Metadata Access http://dc.g-vo.org/rr/q/pmh/pubreg.xml?verb=GetRecord&metadataPrefix=oai_b2find&identifier=ivo://CDS.VizieR/J/A+A/672/A132
Provenance
Creator Fian C.; Chelouche D.; Kaspi S.; Sobrino Figaredo C.; Lewis T.; Catalan S.
Publisher CDS
Publication Year 2023
Rights https://cds.unistra.fr/vizier-org/licences_vizier.html
OpenAccess true
Contact CDS support team <cds-question(at)unistra.fr>
Representation
Resource Type Dataset; AstroObjects
Discipline Astrophysics and Astronomy; Galactic and extragalactic Astronomy; High Energy Astrophysics; Natural Sciences; Observational Astronomy; Physics