Return to Home Page
Date: Tue, 27 Apr 93 18:50:54 CDT From: gav@astro.as.utexas.edu (Gerard de Vaucouleurs) Subject: Errors in IAUC5774 (SN1993J) URGENT MESSAGE TO ALL SN1993J INVESTIGATORS The following observations of SN1993J taken from IAUCircular Nr 5774, originating from Xing-Long Observatory do not make sense! There must have been a transmission error or something. The V magnitudes (column 2) are not too far off (~0.1 mag too faint), but the U-B, B-V colors are off by several tenths, and the red and IR colors are 1.5-2 mag off. DO NOT USE UNTIL CLARIFICATION IS RECEIVED FROM CAMBRIDGE AND BEIJING. G. de Vaucouleurs (gav@astro.as.utexas.edu) ********************************************************************* data 2 Zheng: V vs JD (updated 4/26/93) JD-2449000 V i 085.07 11.71 % Zheng+, U-B=-0.51,B-V=0.24,V-Rj=-1.10,V-Ij=-1.16 087.10 11.49 % Zheng+, U-B=-0.43,B-V=0.36,V-Rj=-1.11,V-Ij=-1.19 088.07 11.45 % Zheng+, U-B=-0.31,B-V=0.25,V-Rj=-1.05,V-Ij=-1.11 089.08 11.22 % Zheng+, U-B=-0.37,B-V=0.39,V-Rj=-1.14,V-Ij=-1.32 090.13 11.13 % Zheng+, U-B=-0.31,B-V=0.37,V-Rj=-1.15,V-Ij=-1.21 091.10 11.08 % Zheng+, U-B=-0.34,B-V=0.32,V-Rj=-1.15,V-Ij=-1.24 092.12 10.99 % Zheng+, U-B=-0.32,B-V=0.34,V-Rj=-1.22,V-Ij=-1.21 093.09 10.99 % Zheng+, U-B=-0.25,B-V=0.28,V-Rj=-1.10,V-Ij=-1.18 094.03 10.92 % Zheng+, U-B=-0.34,B-V=0.37,V-Rj=-1.12,V-Ij=-1.19 095.05 10.84 % Zheng+, U-B=-0.27,B-V=0.43,V-Rj=-1.14,V-Ij=-1.28 096.06 10.86 % Zheng+, U-B=-0.23,B-V=0.46,V-Rj=-1.17,V-Ij=-1.24 097.07 10.89 % Zheng+, U-B=-0.13,B-V=0.53,V-Rj=-1.15,V-Ij=-1.20 098.05 10.97 % Zheng+, U-B=-0.13,B-V=0.56,V-Rj=-1.09,V-Ij=-1.16 099.05 11.07 % Zheng+, U-B=-0.10,B-V=0.60,V-Rj=-1.04,V-Ij=-1.13 101.05 11.12 % Zheng+, U-B=-0.12,B-V=0.81,V-Rj=-1.04,V-Ij=-1.13 *******************************************************************
Return to the Powerful Daisaku Nogami
vsnet-adm@kusastro.kyoto-u.ac.jp
