منابع مشابه
The Pearson-readhead Survey of Compact Extragalactic Radio Sources from Space. Ii. Analysis of Source Properties
We have performed a multi-dimensional correlation analysis on the observed properties of a statistically complete core-selected sample of compact radio-loud active galactic nuclei, based on data from the VLBI Space Observing Programme (Paper I) and previously published studies. Our sample is drawn from the well-studied Pearson-Readhead (PR) survey, and is ideally suited for investigating the ge...
متن کاملKinematic Age Estimates for 4 Compact Symmetric Objects from the Pearson-Readhead Survey
Based on multiepoch observations at 15 and 43 GHz with the Very Long Baseline Array (VLBA), we detect signiÐcant angular expansions between the two hot spots of four compact symmetric objects (CSOs). From these relative motions we derive kinematic ages of between 300 and 1200 yr for the radio emission. These ages lend support to the idea that CSOs are produced in a recent phase of activity. The...
متن کاملThe Cross-Wavelet Transform and Analysis of Quasiperiodic Behavior in the Pearson-Readhead VLBI Survey Sources
We introduce an algorithm for applying a cross-wavelet transform to analysis of quasiperiodic variations in a time-series, and introduce significance tests for the technique. We apply a continuous wavelet transform and the cross-wavelet algorithm to the Pearson-Readhead VLBI survey sources using data obtained from the University of Michigan 26-m parabloid at observing frequencies of 14.5, 8.0, ...
متن کاملStatistical Graphics of Pearson Residuals in Survey Logistic Regression Diagnosis
Survey data logistic regression analysis, as computationally available in SAS SURVEYLOGISTIC procedure, has been widely conducted in survey research practice. A set of diagnostic statistics in the procedure, borrowed from the logistic regression in generalized linear models, is used for model assessment. However, for survey data, the statistical underpinnings of these statistics may need to be ...
متن کاملClopper-Pearson Bounds from HEP Data Cuts
For the measurement of Ns signals in N events rigorous confidence bounds on the true signal probability pexact were established in a classical paper by Clopper and Pearson [Biometrica 26, 404 (1934)]. Here, their bounds are generalized to the HEP situation where cuts on the data tag signals with probability Ps and background data with likelihood Pb < Ps. The Fortran program which, on input of P...
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ژورنال
عنوان ژورنال: Symposium - International Astronomical Union
سال: 2001
ISSN: 0074-1809
DOI: 10.1017/s0074180900220688