Аннотация:
We introduce a novel approach, a Dense Shell Method (DSM), for measuring
distances for cosmology.
It is based on original Baade idea to relate absolute difference
of photospheric radii with photospheric velocity.
We demonstrate that this idea works:
the new method does not rely on the Cosmic Distance Ladder
and gives satisfactory results
for the most luminous Type IIn Supernovae.
This allows one to make them good primary distance indicators for cosmology.
Fixing correction factors for illustration, we obtain with this method
the median distance of $\approx 68^{+19}_{-15}$($68\%$CL) Mpc to SN 2006gy
and median Hubble parameter $79^{+23}_{-17}$($68\%$CL) km/s/Mpc.