A translucent interstellar cloud at z = 2.69 - CO, H2, and HD in the line-of-sight to SDSS J123714.60 + 064759.5

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Table 8

CO column densities and excitation temperatures.

Component	log N(CO, J)^a	b (km s^-1)	T_0 − J^b (K)

z_abs = 2.68957	14.17 ± 0.09^c	0.9 ± 0.1
J = 0	13.53 ± 0.04 ± 0.08	”	–
J = 1	13.77 ± 0.02 ± 0.07	”	10.1
J = 2	13.54 ± 0.03 ± 0.06	”	10.5
J = 3	13.21 ± 0.04 ± 0.09	”	12.4
J = 4	12.64 ± 0.16 ± 0.11	”	13.0

Notes.

^(a)

Quoted errors on column densities are errors from fitting the Voigt profiles and errors owing to continuum placement respectively. The latter were estimated by varying the continuum by ± 0.5σ.

^(b)

The errors on T_0 − J represent the extremum values for the different sets of continuum. (c) Total CO column density.

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