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Photometric redshift determination with the BATC multicolor system
Xia, LF; Zhou, X; Ma, J; Wu, H; Sun, WH; Jiang, ZJ; Xue, SJ; Chen, JS; Chen, WP
2002-12-01
发表期刊PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
卷号114期号:802页码:1349-1358
摘要In this paper, we present the methodology of photometric redshift determination with the BATC 15 color system by using the hyperz program. Both simulated galaxies and real galaxies with known redshifts were used to estimate the accuracy of redshifts inferred from multicolor photometry. From the test with simulated galaxies, the uncertainty in the inferred redshifts is about 0.02-0.03 for a given range of photometric uncertainty of 0.05-0.10 mag. The results with the 27 real galaxies are in good agreement with the simulated ones. The advantage of using the BATC intermediate-band system to derive redshift is clear after comparison with the UBVRI broadband system. The accuracy in redshift determination with the BATC system is mainly affected by the selection of filters and the photometric uncertainties in the observation. When we take the limiting magnitudes of the 15 filters into account, we find that redshift can be determined with good accuracy for galaxies with redshifts less than 0.5, using only filters with central wavelengths shorter than 6000 Angstrom.
收录类别SCI
语种英语
WOS记录号WOS:000179390300005
引用统计
文献类型期刊论文
条目标识符http://ir.bao.ac.cn/handle/114a11/8533
专题光学天文研究部
作者单位Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
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GB/T 7714
Xia, LF,Zhou, X,Ma, J,et al. Photometric redshift determination with the BATC multicolor system[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,2002,114(802):1349-1358.
APA Xia, LF.,Zhou, X.,Ma, J.,Wu, H.,Sun, WH.,...&Chen, WP.(2002).Photometric redshift determination with the BATC multicolor system.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,114(802),1349-1358.
MLA Xia, LF,et al."Photometric redshift determination with the BATC multicolor system".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 114.802(2002):1349-1358.
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