Open AccessDynamical phasing of Type II Cepheids
Author(s) -
McSaveney J. A.,
Pollard K. R.,
Cottrell P. L.
Publication year - 2005
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1111/j.1365-2966.2005.09308.x
Subject(s) - cepheid variable , physics , astrophysics , type (biology) , light curve , phaser , selection (genetic algorithm) , acceleration , theoretical physics , point (geometry) , astronomy , optics , classical mechanics , geometry , stars , artificial intelligence , computer science , ecology , biology , mathematics
In this paper we examine the problems of phasing using light curves and offer an alternate technique using the changes in acceleration to establish the zero point. We give astrophysical justification as to why this technique is useful and apply the technique to a selection of Type II Cepheids. We then examine some limitations of the technique which qualify its use.