On the interpretation of the photometry of irregular variable stars observed intermittently |
| |
| Authors: | Peter Fellgett |
| |
| Institution: | (1) Dept. of Applied Physical Sciences, Univ. of Reading, England |
| |
| Abstract: | This note is concerned with the inherent possibilities and limitations in the characterisation of irregular variables when, as is almost inevitably the case, the observations are not effectively continuous. The historical tendency to interpret almost everything in terms of strict periodicity is criticised. The basic logic of the situation is discussed, and it is emphasised that intermittency of observation inevitably blunts our knowledge of the spectrum of the variation. This can be restored to only a limited extent, depending on how reliably it is possible to presume missing observations by interpolation. Some applcation is made to a recent publication on 3C 345.A knowledge of formal Fourier theory is assumed, and the aim is to discuss critical principles rather than to recommend any fixed procedures of interpretation. |
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
