68B0562A.html |
RA Range: 0.5 - 12.5h
Constraint set (Typical seeing, Transparency,Airmass, FLI, Moon distance): 0.8, THN, 1.5-2.0, 1.0, 45
| 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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Simple program aimed at obtaining emission line spectra of a well-studied sample of edge-on (or quasi edge-on) barred spiral galaxies in order to probe the kinematics, unravel the structure, and understand the role of the prominent central gaseous disks. Each nucleus should be (hopefully) identifiable as the light peak at the center of the bulge of the galaxy. If a strong dust lane is present (hence partially hiding the nucleus) the slit should then be positioned on the light peak just above the dust lane. The observations do not require photometric conditions, but a thick cloud coverage is not acceptable as the surface brightness of the objects is low. Each OB-galaxy pair has an associated finding chart showing where the slit should be positioned (though the PA is not marked). Such position is however approximate as the nuclei are typically saturated on the DSS. The slits should be centered on the true light peaks (and be parallel to the major axes of the galaxies). Standard calibrations are sufficient, including night time flux standards.
README of this run: