Absolute frequency measurements of the 2-0 band of CO at 2.3 μm; Calibration standard frequencies from high resolution color center laser spectroscopy

Self- and H2-broadened width and shift coefficients in the 2←0 band of 12C16O: revisited

“…For the majority of the CO lines the precision in our measured line center positions was 0.00003 cm À1 . However, the line positions from Pollock et al [13] are listed in Table 2 because of the higher absolute accuracy of [13] compared to that obtained in the present study. Because the intensity and self-broadening are correlated we compared the retrieved intensities with those reported in [1] and found that the two sets of intensities agree within 0.04%.…”

“…The gas pressures inside the cell (for the six self-broadened spectra) were measured and monitored with Datametrics Barocel 570A-series pressure transducers that were calibrated by the manufacturer to an absolute accuracy of 0.05% of the full-scale reading. The sample pressures of the five H 2 -broadened CO spectra taken during the second experiment were measured and monitored using MKS Baratron gauges (1000 Torr pressure head) also calibrated to an absolute accuracy of 0.05% of full-scale Table 2 Self-and H 2 -broadened width and shift coefficients in the 2 0 Band of 12 (10) )0.00728 (75) )0.00694 (203) P (22) 4159.559472 0.0505 (2) 0.0688 (7) )0.00580 (53) )0.00814 (15) P (21) 4164.840773 0.0520 (2) 0.0680 (5) )0.00593 (40) )0.00732 (119) P (20) 4170.055146 0.0541 (1) 0.0690 (4) )0.00572 (30) )0.00730 (68) P (19) 4175.202446 0.0558 (1) 0.0692 (3) )0.00558 (24) )0.00648 (54) P (18) 4180.282526 0.0572 (1) 0.0690 (3) )0.00546 (20) )0.00694 (44) P (17) 4185.295240 0.0576 (1) 0.0689 (2) )0.00505 (17) )0.00636 (38) P (16) 4190.240441 0.0583 (1) 0.0692 (2) )0.00514 (15) )0.00639 (34) P (15) 4195.117982 0.0589 (1) 0.0686 (2) )0.00533 (13) )0.00597 (21) P (14) 4199.927718 0.0598 (1) 0.0688 (2) )0.00473 (12) )0.00509 (19) P (13) 4204.669501 0.0616 (1) 0.0695 (2) )0.00455 (12) )0.00560 (17) P (12) 4209.343184 0.0629 (1) 0.0696 (2) )0.00440 (12) )0.00549 (17) P (11) 4213.948622 0.0640 (1) 0.0699 (1) )0.00454 (12) )0.00539 (17) P (10) 4218.485666 0.0651 (1) 0.0700 (1) )0.00447 (11) )0.00529 (16) P (9) 4222.954171 0.0656 (1) 0.0699 (1) )0.00459 (11) )0.00516 (16) P (8) 4227.353988 0.0667 (1) 0.0699 (1) )0.00432 (11) )0.00542 (16) P (7) 4231. …”

Near infrared spectroscopy of carbon dioxide. II: 16O13C16O and 16O13C18O line positions

“…Calibration spectra of the (2-0) band of CO at 4200 cm À1 [19] and the (m 1 + m 3 ) band of C 2 H 2 at 6500 cm À1 [20,21] were recorded simultaneously by placing a 2.4 m quartz cell containing 0.5 Torr of C 2 H 2 and 1.1 Torr of CO in the beam path while recording the CO 2 spectrum in the multipass cell. Fig.…”

The HITRAN 2004 molecular spectroscopic database

“…3) The line positions from the high-accuracy experiments that employ best calibration standards, including frequency combs, were used wherever available. In the first overtone, data from Pollock et al [168] were used, in the second overtone data from Refs. [169,170] were employed, while in the fifth overtone Tan et al line positions were taken when available [171] .…”