leda Compilation of Surface Brightness

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Field: mu

The surface brightness in magnitudes per square arcsec (mag arcsec-2)

Field: code_mu

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

Field: quality

Quality Flag The quality flag has the following meaning:

description of quality flag
valuesignification
0regular measurement
1uncertain measurement, its weight is decreased by a factor 2 when computing the average value
3preliminary measurement, probably superseeded in a more recent publication, it is ignored unless no other measurement is available
4compilation, it is ignored unless no other measurement is available
9rejected measurement

Field: bandname

Photometric Band. The definitions are given in the "band_codes" table:


HyperLeda Questions: leda@univ-lyon1.fr