The Figure 3a shows a current Hubble diagram of quasars.
For making of this Hubble diagram the QSO catalog from M.-P. Véron-Cetty (August 2003) was used in which approx. 48,690 quasars are listed with red shift and apparent brightness.
To prepare the Hubble diagram, 45 equal cz intervals were formed and the mean average values of red shift and apparent brightness were determined within these intervals.
These 45 couples of values can be seen as squares in the Figure 3a.
The used method corresponds to that one of the Figure I,3.
In addition, the Figure 3a shows that the apparently brightest quasars per interval are distributed over a relatively big area of the diagram (crosses on the left in the picture). The apparently light weakest objects almost form a straight line (plus sign on the right in the picture). The increase in the straight line belonging to these values is 0.1945.
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Fig. 3a:
Hubble diagram for radio galaxies by A. Sandage (1972) and quasars by M.-P. Véron-Cetty (August 2003).
The bent line corresponds to the new Hubble relation.
It was adapted with MQ = -22.39 to the mean average values per interval of the quasars (squares).
The broken line corresponds to the theory from the literature.
This line was adapted to the radio galaxies (triangles).
The dotted line is the best curve through the radio galaxies.
The crosses on the left in the picture are the maximum apparent brightnesses per red shift interval.
The plus signs on the right represent the minimal apparent brightnesses of the quasars.
For the radio galaxies MRG = -22.8 was found.
The quasars (MQ =-22.39) are on average a little light weaker than the radio galaxies used here for comparison purposes.
This conclusion is new in the comparison with the Figure I,3.
There the quasar catalog by Véron-Cetty of March 2000 was used.
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Copyright by Steffen Haase, Leipzig (2003)
last update: 11/05/2003
last correction of spelling mistakes: 07/17/2005 |