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           Period Changes of LMC Cepheids in the OGLE and MACHO Data

                                  R. Poleski
                           (rpoleski@astrouw.edu.pl)
                      Acta Astronomica 2008, 58, 313-328

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This directory contains times of maximum light for the Large Magellanic Cloud 
Cepheids derived from the MACHO (1992-1999) and OGLE (1997-2008) data. 



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The structure of the catalog:

README 			-- this file.

list.dat		-- list of all analyzed Cepheids; it contains in 
	consecutive columns: OGLE III Catalog of Variable Stars ID (see [1]), 
	mean period and its error (days), pulsation mode (F or 1O) and remarks 
	(O - OGLE II data exist, V - MACHO V data exist, R - MACHO R data 
	exist, A - amplitude is variable in at least on of the data sets).

subdirectory data/	-- contains files OGLE-LMC-CEP-NNNN.max which contain 
	in consecutive columns:	time of maximum light, its error and data 
	source identification (O, R and V for OGLE, MACHO R_M and MACHO V_M, 
	respectively). OGLE-LMC-CEP-NNNN is OGLE-III Catalogue of Variable 
	Stars ID (see [1]). 

OGLE-LMC-CEP_max.tar.gz -- tar and gzipped subdirectory data/ . To uncompress 
	it type:
	> gunzip OGLE-LMC-CEP_max.tar.gz
	> tar -xvf OGLE-LMC-CEP_max.tar


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[1] - Soszynski, I et al. 2008, "The Optical Gravitational Lensing Experiment. 
The OGLE-III Catalog of Variable Stars. I. Classical Cepheids in the Large 
Magellanic Cloud", Acta Astronomica, p. 163-185 (also Internet archive:
ftp://ftp.astrouw.edu.pl/ogle/ogle3/OIII-CVS/lmc/cep)

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Any presentation of the scientific analysis or usage of the data should include 
the appropriate references.