... cosmochronology

Based on observations of program 165.N-0276(A) obtained with the Very Large Telescope of the European Southern Observatory at Paranal, Chile.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... extracted

In the two frames that were obtained through the image slicer, the extraction was simply an average of all pixels in the object profile, spread over four slices.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.

... abundances

In the classical notation where $\log \epsilon$(H) = 12 and $[{\rm X/H}]=\log (N_{{\rm X}}/N_{{\rm H}})_{*} - \log(N_{{\rm X}}/N_{{\rm H}})_{\odot}$.

.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.