Medium-band photometric reverberation mapping of AGNs at $0.1 < z < 0.8$. Techniques and sample

TL;DR

This paper demonstrates the application of medium-band photometric reverberation mapping to estimate the size of the broad-line region in AGNs at redshifts 0.1 to 0.8, using a 1-m telescope and a sample of 8 objects.

Contribution

It introduces a photometric reverberation mapping technique adapted for medium-band filters and applies it to a new sample of AGNs at intermediate redshifts.

Findings

Successful demonstration of the method on 2 objects showing stability.

Sample of 8 AGNs studied for broad-line region size estimation.

Technique suitable for small telescope observations.

Abstract

The most popular method of the broad-line region size estimation in active galactic nuclei (AGN) is the reverberation mapping based on measuring the time delay between the continuum flux and the flux in the emission lines. In our work, we apply the method of photometric reverberation mapping in mid-band filters, adapted for observations on the 1-m Zeiss-1000 telescope of Special Astrophysical Observatory of Russian Academy of Sciences, for the study of AGN with broad lines in the range of redshifts $0.1 < z < 0.8$. This paper provides a sample of 8 objects, describes the technique of observations and data processing for 2 studied objects to demonstrate the stability of the used method.