/ftp/cats/aliases/O/OGLE_27_/.



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J/AcA/58/293   VI lc of LMC type II & anomalous Cepheids     (Soszynski+, 2008)
The following files can be converted to FITS (extension .fit or fit.gz)
	catalog.dat remarks.dat
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Query from: http://vizier.u-strasbg.fr/viz-bin/VizieR?-source=J/AcA/58/293
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drwxr-xr-x 9 cats archive 4096 Jan 29 2012 [Up] drwxr-xr-x 2 cats archive 4096 Dec 15 2013 [TAR file] -rw-r--r-- 1 cats archive 477 Jun 21 2012 .message -r--r--r-- 1 cats archive 7629 May 22 2012 ReadMe -rw-r--r-- 1 cats archive 616 Jun 21 2012 +footg5.gif -rw-r--r-- 1 cats archive 2247 Jun 21 2012 +footg8.gif -r--r--r-- 1 cats archive 44699 Jan 28 2010 catalog.dat [txt] [txt.gz] [fits] [fits.gz] [html] -r--r--r-- 1 cats archive 1485 Jan 28 2010 remarks.dat [txt] [txt.gz] [fits] [fits.gz] [html]
Beginning of ReadMe : J/AcA/58/293 Type-II and anomalous Cepheids in LMC (Soszynski+, 2008) ================================================================================ The Optical Gravitational Lensing Experiment. The OGLE-III catalog of variable stars. II. Type II Cepheids and Anomalous Cepheids in the Large Magellanic Cloud. Soszynski I., Udalski A., Szymanski M.K., Kubiak M., Pietrzynski G., Wyrzykowski L., Szewczyk O., Ulaczyk K., Poleski R. <Acta Astron. 58, 293 (2008)> =2008AcA....58..293S ================================================================================ ADC_Keywords: Magellanic Clouds ; Stars, variable ; Magnitudes Keywords: Cepheids - stars: oscillations - stars: population II - Magellanic Clouds Abstract: In the second part of the OGLE-III Catalog of Variable Stars (OIII-CVS) we present 197 type II Cepheids and 83 anomalous Cepheids in the Large Magellanic Cloud (LMC). The sample of type II Cepheids consists of 64 BL Her stars, 96 W Vir stars and 37 RV Tau stars. Anomalous Cepheids are divided into 62 fundamental-mode and 21 first-overtone pulsators. These are the largest samples of such types of variable stars detected anywhere outside the Galaxy. Description: We present the period-luminosity and color-magnitude diagrams of stars in the sample. If the boundary period between BL Her and W Vir stars is adopted at 4 days, both groups differ significantly in (V-I) colors. We identify a group of 16 peculiar W Vir stars with different appearance of the light curves, brighter and bluer than ordinary stars of that type. Four of these peculiar W Vir stars show additional eclipsing modulation superimposed on the pulsation light curves. Four other stars of that type show long-period secondary variations which may be ellipsoidal modulations. It suggests that peculiar W Vir subgroup may be related to binarity. In total, we identified seven type II Cepheids simultaneously exhibiting eclipsing variations which is a very large fraction compared to classical Cepheids in the LMC.

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