Mary Loli Martínez Aldama et al VLT ISAAC data sample of 30 sources from HE survey at zgt09 CaII covered in the IR Correlation between CaII IR H b and FeII H b s upports photoionization as emission mechanism for FeII ID: 796281
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Slide1
Observations of the Ca II IR triplet in high luminosity Quasars: Expanding the sample
Mary Loli Martínez-Aldama et al.
VLT ISAAC data: sample of 30 sources from HE survey at z>0.9;
CaII covered in the IR
Correlation between
CaII
IR/
H
b
and FeII/
H
b
:
s
upports photoionization as emission mechanism for FeII
Larger
CaII
/FeII ratio and
CaII
EW at high z: enrichment by recent SF?