The multiple coherence scales of C IV at cosmic noon

The multiple coherence scales of C IV at cosmic noon
H. Cort’es-Mu~noz, S. Lopez, N. Tejos, J. -K. Krogager, D. Zamora, R. Cuellar, P. Anshul, F. Urbina, A. Afruni
arXiv:2601.17127v2 Announce Type: replace
Abstract: The spatial and kinematic structure of the circumgalactic medium (CGM) remains poorly constrained observationally. In this article we compute the clustering of CIV absorption systems at cosmic noon using quasar pairs. We analyze VLT/UVES and Keck/HIRES high-resolution spectra (R = 45000) of a sample of 8 projected and 4 lensed quasar pairs that probe transverse separations, $Delta r$, from sub-kpc to a few Mpc, over the redshift range 1.6 arXiv:2601.17127v2 Announce Type: replace
Abstract: The spatial and kinematic structure of the circumgalactic medium (CGM) remains poorly constrained observationally. In this article we compute the clustering of CIV absorption systems at cosmic noon using quasar pairs. We analyze VLT/UVES and Keck/HIRES high-resolution spectra (R = 45000) of a sample of 8 projected and 4 lensed quasar pairs that probe transverse separations, $Delta r$, from sub-kpc to a few Mpc, over the redshift range 1.6