The HET Echo Mapping Project

Details The HET Echo Mapping Project The HET Echo Mapping Project

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...197.3913w&link_type=abstract

American Astronomical Society, 197th AAS Meeting, #39.13; Bulletin of the American Astronomical Society, Vol. 32, p.1458

Astronomy and Astrophysics

Astronomy

2

Scientific paper

The ``HET Echo Mapping Project'' is a new research program that is using the echo mapping technique to probe supermassive black holes and their environments in AGN. Its primary goals are to: (1) Map the size, geometry, and the flow of the BLR gas; (2) Make direct dynamical estimates of the mass of the black hole using the measured geometry and kinematics of the BLR; (3) Map higher luminosity AGN (at redshifts z ~2.3--2.8), probing accretion onto black holes that are 10--100 times more massive than could previously be studied; (4) Measure the temporal evolution of BLR structure. The Project relies on two key elements: (1) We are using the new, queue--scheduled, 9--m ``HET'' telescope to obtain superb data. Previous projects were limited by the noisy and non--uniform data produced by the small telescopes (1--2.5 m) that were used. (2) We will carry out full 2--dimensional (velocity--resolved) echo mapping. Most previous attempts have only been able to produce 1--D maps. Details and initial results from the Project will be presented. This project is supported in part by the NSF.

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