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2
| Quality plots
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| Same region in: |
SpT = B: |
HD_164402 (B0Ib, Z=-9.00??) |
HD_36960 (B0.5V, Z=-0.63) |
HD_34816 (B0.5IV, Z=1.00) |
HD_91316 (B1Ib, Z=-0.89) |
HD_52089 (B2II, Z=-0.75) |
HD_96446 (B2IIIp, Z=-0.60) |
HD_886 (B2IV, Z=0.04) |
CD-69_1618 (B2p, Z=-9.00??) |
HD_58343 (B2.5IVe, Z=0.89) |
HD_37202 (B4IIIp, Z=-0.12) |
HD_175156 (B5II, Z=0.7) |
HD_163745 (B5II, Z=0.00) |
HD_120908 (B5III, Z=0.00) |
HD_210424 (B5III, Z=0.00) |
HD_142919 (B5IV, Z=0.00) |
HD_186837 (B5V, Z=0.00) |
HD_480 (B5V, Z=0.00) |
HD_103077 (B5V, Z=0.00) |
HD_24587 (B5V, Z=0.00) |
HD_65622 (B5V, Z=0.00) |
HD_149382 (B5, Z=-1.30) |
HD_164353 (B5Ib, Z=-9.00??) |
HD_138749 (B6Vnn, Z=-0.08) |
HD_17081 (B7V, Z=0.7) |
HD_224926 (B7III-IV, Z=1.) |
HD_196662 (B7III, Z=0.80) |
HD_110073 (B8II/III, Z=-0.90) |
HD_358 (B8IVp, Z=-1.50) |
HD_78316 (B8III, Z=-0.25) |
HD_196426 (B8IIIp, Z=0.05) |
HD_34797 (B8-B9IV:, Z=-0.60) |
HD_176437 (B9III, Z=0.17) |
HD_147550 (B9V, Z=0.00) |
HD_175640 (B9II, Z=-0.30) |
HD_128801 (B9, Z=-1.24) |
HD_163641 (B9III, Z=-0.06) |
HD_27295 (B9IV, Z=-0.65) |
HD_117880 (B9IV/V, Z=-1.73) |
HD_106304 (B9V, Z=-0.80) |
HD_79469 (B9.5V, Z=0.4) |
Other SpT:
O
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A
F
G
K
M
Unknown
Telluric
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| UVES NGSL Project: HD_176437 |
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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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