English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Accurate methods for reverberation mapping using photometry are highly soughtafter since they are inherently less resource intensive than spectroscopictechniques. However, the effectiveness of photometric reverberation mapping forestimating black hole masses is sparsely investigated at redshifts higher than$z\approx0.04$. Furthermore, photometric methods frequently assume a DampedRandom Walk (DRW) model, which may not be universally applicable. We performphotometric reverberation mapping using the Javelin photometric DRW model forthe QSO SDSSJ144645.44+625304.0 at z=0.351 and estimate the H$\beta$ lag of$65^{+6}_{-1}$ days and black-hole mass of$10^{8.22^{+0.13}_{-0.15}}M_{\odot}$. An analysis of the reliability ofphotometric reverberation mapping, conducted using many thousands of simulatedCARMA process light-curves, shows that we can recover the input lag to within 6per cent on average given our target's observed signal-to-noise of > 20 and anaverage cadence of 14 days (even when DRW is not applicable). Furthermore, weuse our suite of simulated light curves to deconvolve aliases and artefactsfrom our QSO's posterior probability distribution, increasing thesignal-to-noise on the lag by a factor of $\sim2.2$. We exceed thesignal-to-noise of the Sloan Digital Sky Survey Reverberation Mapping Project(SDSS-RM) campaign with a quarter of the observing time per object, resultingin a $\sim200$ per cent increase in SNR efficiency over SDSS-RM.

The Performance of Photometric Reverberation Mapping at High Redshift and the Reliability of Damped Random Walk Models