HST Echo Mapping of NGC 5548
SPIRAL DISK SIMULATIONS illustrate HST's ability to recover
the velocity-delay structure of an AGN accretion disk with
spiral density waves.
On each HST orbit, expose 1260s with G140L and 560s with G230L.
Repeat every dt=1 days for T=125 days. Delay range 0-100d.
SIMULATION 2h .
True maps:
emissivity ,
responsivity .
Synthetic data:
Lya ,
CIV ,
HeII .
Spectra:
1st ,
avg,rms .
Sampled lightcurves:
1380A ,
Lya,
CIV,
HeII.
1-D MEMECHO maps Psi(tau):
Chi2= 3 ,
2 ,
1 .
iter .
2-D MEMECHO maps Psi(v,tau):
G140L
map ,
fit ,
dat ,
(dat-fit),
(dat-fit)/sig ,
iter .
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Keith Horne (kdh1@st-andrews.ac.uk)