This binary structure contains measurements of stellar absorption line indices (Lick indices) and the coeficients of the Bruzual & Charlot models used in the continuum fit. It also contains a measurement of the reddening in the continuum.
Tag Name |
Data Type / Units |
Description |
| plateid |
int[1] |
Plate id |
| fiberid |
int[1] |
Fiber number (1-640) |
| (index_name) |
float[1] mag or A |
Restframe index measurement |
| (index_name)_err |
float[1] |
Error on index measurement |
| (index_name)_model |
float[1] |
Index of best fit model spectrum |
| (index_name)_sub |
float[1] |
Restframe index measurement on
the data after subtracting all 3-sigma emission lines |
| (index_name)_sub_err |
float[1] |
Error in the above index
measurement |
| tauv_model_004 |
float[1] |
V-band optical depth affecting
the stars for BC03 models with Z=0.004 (1/5 x Solar) |
| model_coef_004 |
float[10] |
Coeficient of each (normalized)
instantaneous burst BC03 model with Z=0.004 (1/5 x Solar) |
| model_chisq_004 |
float[1] |
Reduced chi-squared of fit with
Z=0.004 BC03 models |
| tauv_model_020 |
float[1] |
V-band optical depth affecting
the stars for BC03 models with Z=0.020 (Solar) |
| model_coef_020 | float[10] |
Coeficient of each (normalized)
instantaneous burst BC03 model with Z=0.020 (Solar) |
| model_chisq_020 |
float[1] |
Reduced chi-squared of fit with Z=0.020 BC03 models |
| tauv_model_050 |
float[1] |
V-band optical depth affecting
the stars for BC03 models with Z=0.050 (2.5 x Solar) |
| model_coef_050 |
float[1] |
Coeficient of each (normalized) instantaneous burst BC03 model with Z=0.050 (2.5 x Solar) |
| model_chisq_050 |
float[1] |
Reduced chi-squared of fit with
Z=0.050 BC03 models |
| best_model_z |
float[1] |
Metallicity of best fitting (min
chisq) model Z = 0.004 / 0.020 / 0.050 (0.2 1.0, 2.5 x solar) |
| tauv_cont |
float[1] |
V-band optical depth (TauV = A_V
/ 1.086) affecting the stars from best fit model (best of 3 Z's) |
| model_coef |
float[10] |
Coeficients of best fit model
(best of 3 Z's) |
| model_chisq |
float[1] |
Reduced chi-squared of best fit
model (best of 3 Z's) |