王婷婷(1983-),女,硕士研究生,主要研究方向为数字图像处理.
纸质出版:2011
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王婷婷, 苏成悦, 王娴, 周镇, 周冬跃. 亮星与暗星测光方法的对比研究[J]. 广东工业大学学报, 2011, 28(2): 59-62.
WANG Ting-Ting, SU Cheng-Yue, WANG Xian, et al. A Comparative Study of Photometry on Bright Stars and Dark Stars[J]. 2011, 28(2): 59-62.
利用有效点扩散函数和高斯函数分别对亮星和暗星进行拟合测光的对比研究.将国家天文台1 m望远镜观测的16幅CCD图像中的星体按其平均光度分为亮星和暗星二类,各自求得它们的有效点扩散函数并进行测量.结果表明:用亮星的有效点扩散函数拟合亮星精度较高,用高斯拟合方法拟合暗星精度较高.有效点扩散函数测量亮星的精度优势明显,对于暗星测量以高斯拟合方法稍好,说明暗星的形态结构更接近高斯分布.
It conducts a comparative study of photometry on the bright stars and dark stars
using e-PSF(effective-Point-Spread-Function) and Gaussian function. The stars in the 16 CCD images observed by National Astronomical 1 m telescope were divided into two types of stars
bright stars and dark stars according to the average luminosity
and each of the e-PSF was calculated and used to measure the stars. The results reveal that the precision rate is higher if the e-PSF of bright stars is used to measure bright stars
and the precision rate is higher if the Gauss-fitting is used to measure dark stars. The e-PSF has obvious advantages to measure the precision of bright stars while the Gauss-fitting is better for dark stars
which shows that the morphological structure of the dark star is closer to Gaussian distribution.
曾开华,彭青玉.高精度恒星孔径测光注释[J].天文研究与技术,2010,7(2):124-131.
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The MATPHOT algorithm for digital point spread function CCD stellar photometry[J].ASPC,2002,281:387-390.
陈鼎,王家骥,陈力.HST WFPC 2天体测量和测光方法最新进展[J].天文学进展,2004,22(3):210-218.
Anderson J, King I R. Toward high-precision astrometry with WFPC2.I.Deriving an accurate point-spread function[J].PASP,2000,112(776):1360-1382.
Anderson J, Bedin L R, Piotto G, et al. Ground-based CCD astrometry with wide field imagers-I. Observations just a few years apart allow decontamination of field objects from members in two globular clusters[J]. A&A, 2006, 454(3): 1029-1045.
王娴,苏成悦,王婷婷.基于有效点扩散函数的高精度测光[J].天文研究与技术, 2011, 8(1):58-63.
谢小君.CCD图像星象自动搜索算法的设计与实现[D].广州:暨南大学信息科学与技术学院, 2005.
王娴,苏成悦,王婷婷,等.一种新的星象自动搜索算法[J].广东工业大学学报, 2009,26(3):77-81.
王婷婷,苏成悦, 王娴.基于多幅图像的有效点扩散函数的高精度测量[J]. 广东工业大学学报,2010,27(3):51-55.
张志渊,彭青玉. ePSF拟合法与Gaussian拟合法的比较[J]. 天文研究与技术,2010,7(2):132-139.
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