Description
This page provides links to the composite spectra created from the 2QZ.
Full details given in Croom
et al. (2002).
Three types of composite are provided in ASCII format
-
Full composite: All 2QZ QSOs
-
MB-composites: Binned in
M B
-
MB-z composites: Binned in MB and
z
File Format
In each composite data file the columns are:
| Column |
Format |
| Wavlength (A) |
F6.1 |
| Normalized flux |
E10.4 |
| Error |
E10.4 |
| Quality |
L1 |
| Number of QSOs |
I5 |
| median MB |
F6.2 |
| median z |
F6.4 |
Composite Spectra
| Full Composite |
| Data |
NQSO |
File |
| 2QZ survey |
21102 |
 |
| MB Composites |
| Mag Bin |
NQSO |
File |
| -27.5<MB<-27.0 |
180 |
|
| -27.0<MB<-26.5 |
585 |
|
| -26.5<MB<-26.0 |
1432 |
|
| -26.0<MB<-25.5 |
2483 |
|
| -25.5<MB<-25.0 |
3524 |
|
| -25.0<MB<-24.5 |
3679 |
|
| -24.5<MB<-24.0 |
2999 |
|
| -24.0<MB<-23.5 |
2023 |
|
| -23.5<MB<-23.0 |
1452 |
|
| -23.0<MB<-22.5 |
933 |
|
| -22.5<MB<-22.0 |
740 |
|
| -22.0<MB<-21.5 |
501 |
|
| -21.5<MB<-21.0 |
292 |
|
| -21.0<MB<-20.5 |
139 |
|
| -20.5<MB<-20.0 |
49 |
|
| MB -z composites |
| Bin |
0.25<z<0.50 |
0.50<z<0.75 |
0.75<z<1.0 |
1.0<z<1.25 |
1.25<z<1.50 |
1.50<z<1.75 |
1.75<z<2.0 |
2.0<z<2.25 |
2.25<z<2.5 |
| -27.5<MB<-27.0 |
- |
- |
- |
- |
- |
- |
- |
- |
|
| -27.0<MB<-26.5 |
- |
- |
- |
- |
- |
|
|
|
|
| -26.5<MB<-26.0 |
- |
- |
- |
- |
|
|
|
|
|
| -26.0<MB<-25.5 |
- |
- |
- |
|
|
|
|
|
|
| -25.5<MB<-25.0 |
- |
- |
|
|
|
|
|
|
|
| -25.0<MB<-24.5 |
- |
- |
|
|
|
|
|
|
|
| -24.5<MB<-24.0 |
- |
|
|
|
|
|
|
- |
- |
| -24.0<MB<-23.5 |
- |
|
|
|
|
|
- |
- |
- |
| -23.5<MB<-23.0 |
|
|
|
|
- |
- |
- |
- |
- |
| -23.0<MB<-22.5 |
|
|
|
|
- |
- |
- |
- |
- |
| -22.5<MB<-22.0 |
|
|
- |
- |
- |
- |
- |
- |
- |
| -22.0<MB<-21.5 |
|
|
- |
- |
- |
- |
- |
- |
- |
| -21.5<MB<-21.0 |
|
|
- |
- |
- |
- |
- |
- |
- |
| -21.0<MB<-20.5 |
|
- |
- |
- |
- |
- |
- |
- |
- |
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The 2QZ team (July 2003)