A Project for a New Echo-Mapping Campaign at Intermediate Redshift

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dc.creatorTrevese, Dario
dc.creatorStirpe, Giovanna
dc.creatorVagnetti, Fausto
dc.creatorZitelli, Valentina
dc.creatorParis, Diego
dc.date2004-08-04
dc.date.accessioned2026-07-07T02:14:12Z
dc.date.available2026-07-07T02:14:12Z
dc.descriptionAGN masses can be estimated by "single epoch" spectral measurements through a mass-luminosity- linewidth relation calibrated by echo mapping measurements of a reference sample of low redshift ($z < 0.3$) and low luminosity ($M_B > -26$) AGNs. To analyze the possible dependence of this relation on luminosity we selected a sample of bright, intermediate redhift ($z \sim 1$) objects and we started a spectrophotometric monitoring campaign with a typical sampling time of about one month. Variability observations of lines with shorter wavelength than H$_β$ will also provide new information on the structure of the broad line region. Cross-correlation analysis of continuum and line variations will require years of monitoring. We present a preliminary analysis of the data collected during the first year of observations and we discuss the adequacy of the spectrophotometric accuracy attained and future prospects of this project.
dc.description4 pages, proceedings of "AGN Variability from X-rays to Radio Waves", Eds. C. M. Gaskell, I. M. McHardy, B. M. Peterson, and S. G. Sergeev
dc.identifierhttps://arxiv.org/abs/astro-ph/0408075
dc.identifierhttp://arxiv.org/abs/astro-ph/0408075
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/8028
dc.subjectAstrophysics
dc.titleA Project for a New Echo-Mapping Campaign at Intermediate Redshift
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