Journal article
Application of the trend filtering algorithm to the MACHO database*
Abstract
Aims. Because of the strong effect of systematics (or trends) in variable star observations, we apply the Trend Filtering Algorithm (TFA) to a subset of the MACHO database and search for variable stars. Methods. TFA has been applied successfully in planetary transit searches, where weak, short-duration periodic dimmings are sought in the presence of noise and various systematics (due to, e.g., imperfect flat-fielding, crowding, etc.). These …
Authors
Szulágyi J; Kovács G; Welch DL
Journal
Astronomy & Astrophysics, Vol. 500, No. 2, pp. 917–927
Publisher
EDP Sciences
Publication Date
June 2009
DOI
10.1051/0004-6361/200911692
ISSN
0004-6361