Free Access
Table 1
An example with 100 stars illustrating how the estimated velocity dispersion depends on the value of α.
| α |
|
|
|
σu | σv | σw |
|
|
||||||
| True | 10.000 | 15.000 | 7.000 | 22.000 | 14.000 | 10.000 |
|
|
||||||
| 0.0 | 10.090 | 14.775 | 7.083 | 21.712 | 13.636 | 9.783 |
| 0.5 | 10.033 | 14.808 | 7.090 | 21.610 | 13.638 | 9.902 |
| 1.0 | 10.032 | 14.806 | 7.091 | 21.429 | 13.619 | 10.041 |
| 1.5 | 10.031 | 14.805 | 7.093 | 21.251 | 13.604 | 10.182 |
| 2.0 | 10.029 | 14.804 | 7.094 | 21.076 | 13.591 | 10.324 |
| 10.0 | 10.015 | 14.824 | 7.143 | 18.587 | 13.845 | 12.819 |
Notes. In this case α = 0 would actually be used (no regularization). The solutions for α > 0 were only made to show that the velocity dispersion becomes more isotropic when regularization is used.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.