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Light Curve Analysis of MisV Stars Identified with Candidate Variable Stars from OGLE-II Bulge DataMay 1, 2003Yoshida, S.; Greaves, J. This report describes the analysis of light curves of 24 MISAO Project new variable stars identified with candidate variable stars from OGLE-II bulge data, based on the I-band magnitude observed by the OGLE-II project (http://bulge.princeton.edu/~ogle/ogle2/bulge_dia_variables/). These objects were discovered and published as new variable stars in the course of the MISAO Project between 1999 May and 2000 May, but details on their types and light curves were uncertain. After that, the OGLE-II bulge data was published as pre-print in 2002 January. Then these MISAO objects were cross identified with the OGLE-II bulge objects and the types and periods were revealed based on the OGLE-II data. We acknowledge the use of variable star observations obtained by the OGLE-II survey with the 1.3-m Warsaw telescope at Las Campanas Observatory of the Carnegie Institution of Washington. MisV0012 = OGLE2-BUL-SC22-V1086Mira variable with a period of 390 days. MisV0014 = OGLE2-BUL-SC22-V1471Mira variable with a period of 363 days. MisV0015 = OGLE2-BUL-SC22-V383The variation range from OGLE's observations is small as 11.838 - 11.933 mag, although the range from MISAO's unfiltered CCD observations is large as 12.8 - 14.3 mag. The type is unknown. It may be a low amplitude irregular long period variable. The light curve looks similar to those of GCAS stars like delta Sco or chi Oph. GCAS is an eruptive irregular variable of the Gamma Cas type, rapidly rotating B III-IVe star with mass outflow from it equatorial zone (from GCVS variability types description). But the 2MASS J-Ks color of MisV0015 is so large as 1.303 mag. MisV0026 = OGLE2-BUL-SC22-V1726Mira variable with a period of about 420 days. MisV0030 = OGLE2-BUL-SC22-V2542Semi regular variable with a period of 145 days. MisV0036 = OGLE2-BUL-SC22-V2269Mira variable with a period of 207 days. MisV0045 = OGLE2-BUL-SC38-V829Semi regular variable with a period of about 260 days. MisV0049 = OGLE2-BUL-SC38-V410Semi regular variable with a period of 56.7 days, and epoch at JD=2450555. MisV0054 = OGLE2-BUL-SC19-V655Semi regular variable with a period of 229 days. MisV0074 = OGLE2-BUL-SC22-V372Mira variable with a period of 460 days. MisV0075 = OGLE2-BUL-SC23-V4423Mira variable with a period of about 390 days. MisV0081 = OGLE2-BUL-SC23-V1612Semi regular variable with a period of 229 days. MisV0372 = OGLE2-BUL-SC01-V3541Semi regular variable with a period of 204 days. MisV0545 = OGLE2-BUL-SC38-V3711Mira variable with a period of about 350 days. MisV0549 = OGLE2-BUL-SC31-V1296Mira variable with a period of about 310 days. MisV0551 = OGLE2-BUL-SC31-V4128Mira variable with a period of about 270 days. MisV0554 = OGLE2-BUL-SC31-V3381Semi regular variable with a period of 193 days. MisV0788 = OGLE2-BUL-SC22-V3184Mira variable with a period of about 310 days. MisV0789 = OGLE2-BUL-SC23-V3525Possible doubly periodic semi regular variable. The shorter period may be about 70 days. MisV0804 = OGLE2-BUL-SC19-V0608Mira variable with a period of 288 days. MisV0805 = OGLE2-BUL-SC19-V2332 = V4720 SgrSemi regular variable with a period of about 205 days. MisV0806 = OGLE2-BUL-SC19-V2505 = V4721 SgrPossible doubly periodic semi regular variable. The shorter period may be about 100 days. MisV0856 = OGLE2-BUL-SC22-V2395Mira variable with a period of 216 days. MisV0893 = OGLE2-BUL-SC23-V2837Mira variable with a period of about 480 days. |