Volume 370, Number 2, May I 2001
|Page(s)||649 - 671|
|Section||Numerical methods and codes|
|Published online||15 May 2001|
Maximum likelihood estimation of single X-ray point-source parameters in ROSAT data
Max-Planck-Institut für extraterrestrische Physik, 85741 Garching, Germany
Corresponding author: F. G. Boese, firstname.lastname@example.org
Accepted: 9 January 2001
The point source parameter estimation via Maximum Likelihood Estimation in ROSAT data is docu men ted. The infall of X-ray photons is treated as a Poisson process. Based on the Poisson model, the log-likelihood function for unbinned data is derived. The adopted source and background models are explained. In the chosen parameterization, the Maximum Likelihood equations and their numerical solution are expounded. The performance of the method is illustrated by an example and tests on simulated observations.
Key words: X-ray: general, space vehicles: instrumentation: detectors, techniques: image processing
© ESO, 2001
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.