WFC3/UVIS Photometric Transformations
WFC3/UVIS Photometric Transformations
复制标题
WFC3/UVIS 光度转换
DOI：
--
复制
发表时间：
2014
期刊：
影响因子：
--
通讯作者：
E. Sabbi
中科院分区：
文献类型：
--
作者：
K. Sahu;S. Deustua;E. Sabbi
我们提供了用于在ABMAG、STMAG和VEGAMAG系统中将原生WFC3/UVIS滤光带转换为Johnson/Cousins UBVRI滤光带的光度转换系数。使用合成恒星/黑体模型计算了UVIS1和UVIS2芯片、不同光谱类型的恒星和一定范围的黑体温度的转换系数。我们还提供了一个配方，可用于使用SYNPHOT推导转换系数。然而，我们的建议是，用户应该在基于WFC3过滤器本身的系统中参考WFC3光度测量结果，并且我们警告说，应该非常谨慎地使用转换，因为它们的精度可能有限。
We provide photometric transformation coefficients for converting magnitudes from the native WFC3/UVIS filter passbands to Johnson/Cousins UBVRI passbands in ABMAG, STMAG and VEGAMAG system. The transformation coefficients have been calculated both for UVIS1 and UVIS2 chips, for stars of various spectral types and a range blackbody temperatures using synthetic stellar/black-body models. We also provide a recipe which can be used to derive transformation coefficients using SYNPHOT. Our recommendation, however, is that the users should refer to WFC3 photometric results in a system based on the WFC3 filters themselves, and we warn that the transformations should be used with extreme caution since they can have limited precision.