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Compilation of Surface Brightness |
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The surface brightness in magnitudes per square arcsec (mag arcsec-2)
Code for the type of surface brightness
| 0 |
Central or peak surface brightness |
| 1 |
Surface brightness at effective radius |
| 2 |
Effective mean surface brightness within the effective
radius (equivalent radius in which half the total flux is emitted). |
| 3 |
Central surface brightness for exponential fit |
Quality Flag The quality flag has the following meaning:
| description of quality flag | |
|---|---|
| value | signification |
| 0 | regular measurement |
| 1 | uncertain measurement, its weight is decreased by a factor 2 when computing the average value |
| 3 | preliminary measurement, probably superseeded in a more recent publication, it is ignored unless no other measurement is available |
| 4 | compilation, it is ignored unless no other measurement is available |
| 9 | rejected measurement |
Photometric Band. The definitions are given
in the "band_codes" table:
| HyperLeda | Questions: leda@univ-lyon1.fr |