Stacked reverberation mapping
View/ Open
Author
Fine, S.
Shanks, T.
Green, P.
Kelly, B. C.
Croom, S. M.
Webster, R. L.
Chornock, R.
Burgett, W. S.
Chambers, K. C.
Kaiser, N.
Price, P. A.
Note: Order does not necessarily reflect citation order of authors.
Published Version
https://doi.org/10.1093/mnrasl/slt069Metadata
Show full item recordCitation
Fine, S., T. Shanks, P. Green, B. C. Kelly, S. M. Croom, R. L. Webster, E. Berger, et al. 2013. Stacked Reverberation Mapping. Monthly Notices of the Royal Astronomical Society: Letters 434, no. 1: L16–L20. doi:10.1093/mnrasl/slt069.Abstract
Over the past 20 years reverberation mapping has proved one of the most successful techniques for studying the local (< 1 pc) environment of super-massive black holes that drive active galactic nuclei. Key successes of reverberation mapping have been direct black hole mass estimates, the radius–luminosity relation for the Hβ line and the calibration of single-epoch mass estimators commonly employed up to z ∼ 7. However, observing constraints mean that few studies have been successful at z > 0.1, or for the more-luminous quasars that make up the majority of current spectroscopic samples, or for the rest-frame ultra-violet emission lines available in optical spectra of z > 0.5 objects. Previously we described a technique for stacking cross correlations to obtain reverberation mapping results at high z. Here we present the first results from a campaign designed for this purpose. We construct stacked cross-correlation functions for the C iv and Mg ii lines and find a clear peak in both. We find the peak in the Mg ii correlation is at longer lags than C iv consistent with previous results at low redshift. For the C iv sample we are able to bin by luminosity and find evidence for increasing lags for more-luminous objects. This C iv radius–luminosity relation is consistent with previous studies but with a fraction of the observational cost.Other Sources
https://arxiv.org/pdf/1305.1803.pdfTerms of Use
This article is made available under the terms and conditions applicable to Open Access Policy Articles, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#OAPCitable link to this page
http://nrs.harvard.edu/urn-3:HUL.InstRepos:30485099
Collections
- FAS Scholarly Articles [18256]
Contact administrator regarding this item (to report mistakes or request changes)