267A5714A.html |
RA Range: 0.25h
Constraint set (Typical seeing, Transparency,Airmass, FLI, Moon distance): 1.2, THN, 1.4, 0.4, 60
| Pre-imaging run? |
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Chilean run? |
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Special calibrations? |
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| Time critical? |
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ToO? |
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Carry-over run? |
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Single target DDT program to confirm the detection of HD molecules in a high-redshift DLA system (V=18.2). The determination of the N(H_D)/N(H_2) column density ratio could lead to an independent estimate of the crucial D/H abundance ratio. No special requirement. One wavelength calibration is attached to each OB. Preferably seeing smaller than slit width of 1 arcsec.
README of this run: