Examples publications using this data are:
https://www.nature.com/articles/443128a
https://swift.gsfc.nasa.gov/results/releases/images/recordzs/
https://www.nature.com/articles/4611221a
Current spectroscopically confirmed 'record' holders:
Galaxy: z=9.110, MACS1149-JD1, Hashimoto et al, 2018Natur.557..392H
Quasar: z=7.51, ULASJ1342+0928, Banados et al, 2018Natur.553..473B
Gamma Ray Burst (GRB): z=8.23, GRB 090423, Salvaterra et al, 2009Natur.461.1258S; Tanvir et al., 2009Natur.461.1254T"
The highest redshifts at the end of 1999 were:
Galaxy: z=5.74; Hu, McMahon, Cowie, 1999ApJ...522L…9H
Quasar: z=5.00; Fan et al, 1999AJ....118….1F
GRB: z=3.40; Kulkarni et al, 1998Natur.393…35K
Example plot: https://github.com/richardgmcmahon/highestredshift/blob/master/results/highestz_history_2020_20190317.png
Producing redshift history plots for different epochs
Your can select the historical year and the year range to plot on the x-axis separately.
optional arguments:
-h, --help show this help message and exit
--any Plot independent of classification (default: False)
--quasar Plot quasar history (default: False)
--radio Identify radio selected objects (default: False)
--galaxy Plot galaxy history (default: False)
--classify Identify class/type of source e.g. galaxy, quasar
(default: False)
--year_min YEAR_MIN Manimum year to plot (default: None)
--year_max YEAR_MAX Maximum year to plot (default: None)
--year_xmin YEAR_XMIN
Minimum year for plot x-axis (default: 1955)
--year_xmax YEAR_XMAX
Maximum year for plot x-axis (default: 2020)
--redshift_ymax REDSHIFT_YMAX
Maximum redshuft for plot y-axis (default: 10.0)
--markersize MARKERSIZE
Marker size (size as diameter as in plot) (default:
7.0)
--plotdir PLOTDIR Output/Result directory (default: None)
--infile INFILE Input file name (default: None)
--configfile CONFIGFILE
configuration file (default: None)
--debug debug option (default: False)
--verbose verbose option (default: False)
--version verbose option (default: False)
WARNING: Not all options may be supported
examples
python plot_history.py
python plot_history.py --any --markersize 10.0 --radio --class --year_max 1999 --year_xmax 2020 --redshift_ymax 10.0
Epoch 1999 corresponding to launch of Chandra, XMM-Newton
python plot_history.py --any --markersize 10.0 --radio --class --year_max 1999 --year_xmax 2020 --redshift_ymax 10.0
python plot_history.py --any --markersize 10.0 --radio --class --year_max 2020 --year_xmax 2020 --redshift_ymax 10.0
Epoch 2005 which is when I first made a compilation and my plots used IDL
python plot_history.py --any --markersize 10.0 --radio --class --year_max 2005 --year_xmax 2010 --redshift_ymax 8.0