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| Quality plots
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| Same region in: |
SpT = A: |
HD_170973 (A0sp, Z=1.08) |
HD_164257 (A0, Z=0.42) |
HD_194453 (A0, Z=0.41) |
HD_40573 (A0, Z=0.10) |
HD_167946 (A0, Z=0.10) |
HD_166283 (A0, Z=-0.08) |
HD_164967 (A0, Z=-0.13) |
HD_143459 (A0Vs, Z=-1.26) |
HD_74721 (A0V, Z=-1.42) |
HD_183324 (A0V, Z=-1.50) |
HD_93329 (A0, Z=-1.62) |
HD_87737 (A0Ib, Z=-9.00??) |
HD_111786 (A0III, Z=-1.60) |
HD_72968 (A1p, Z=1.6) |
HD_114330 (A1IV, Z=-0.02) |
HD_174240 (A1V, Z=-0.14) |
HD_204041 (A1IV, Z=-0.98) |
HD_319 (A1V, Z=-0.70) |
HD_86986 (A1V, Z=-1.67) |
HD_97633 (A2V, Z=0.58) |
HD_140232 (A2m, Z=0.52) |
HD_141795 (A2m, Z=0.49) |
HD_108945 (A2pvar, Z=0.16) |
HD_28978 (A2V, Z=0.14) |
HD_166991 (A2, Z=-0.22) |
HD_142703 (A2Ib/II, Z=-0.91) |
HD_2857 (A2, Z=-1.80) |
HD_190073 (A2IVpe, Z=-1.95) |
HD_18769 (A3m, Z=0.80) |
HD_201377 (A3, Z=0.00) |
HD_163346 (A3, Z=-0.12) |
HD_174966 (A3, Z=-0.19) |
HD_38237 (A3, Z=-0.21) |
HD_141851 (A3Vn, Z=-1.87) |
HD_19445 (A4p, Z=-2.03) |
HD_172230 (A5, Z=0.46) |
BD-12_2669 (A5, Z=-1.49) |
SAO_180855 (A5, Z=-9.00??) |
HD_59612 (A5Ib, Z=-9.00??) |
HD_193281 (A5/A6V, Z=-1.00) |
HD_344365 (A9, Z=-9.00??) |
Other SpT:
O
B
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F
G
K
M
Unknown
Telluric
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| UVES NGSL Project: HD_141795 |
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Find here a quality plot for the co-added products.
We display the full spectral region for a setup. The data are rebinned to 5 A bins and are intended
as overview of the spectral slope, and as indication about the S/N quality of the co-added data.
The overview plot has
- the full co-added spectrum (rebinned to 5 A) on top ('overview');
- a signal/noise plot for the co-added spectrum. It comes in two versions: blue is the S/N as calculated from the spectrum (as displayed on top) and its (pipeline-delivered) errorbar file.
Red dots mark a measurement of S/N over 0.5A bins in which the statistical rms is evaluated. In many
cases stellar absorption lines or telluric lines dominate the fluctuations and hence corrupt
the S/N value. But in favourable cases a spectral region will show pure continuum and give a
realistic estimate of S/N. Hence the upper envelope of the red dots can be seen as a S/N
measurement of the final product spectrum, including all noise sources up to a scale of 0.5A.
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