Periodic Variable Star Timing with MACHO Lightcurves

Details Periodic Variable Star Timing with MACHO Lightcurves Periodic Variable Star Timing with MACHO Lightcurves

Dec 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aas...189.9612p&link_type=abstract

American Astronomical Society, 189th AAS Meeting, #96.12; Bulletin of the American Astronomical Society, Vol. 28, p.1400

Astronomy and Astrophysics

Astrophysics

Scientific paper

The MACHO data archive contains many thousands of periodic variable stars with very dense phase coverage acquired over four years of ~ nightly observations. We analyze each lightcurve to determine a phase delay time series and identify long term phase delay structure. A number of astrophysical processes, including orbital displacement and period evolution, can produce phase delay signals. We present here an outline of this technique and a number of interesting results found in the set of LMC Cepheid stars.

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