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Large-scale two-dimensional distribution of extragalactic IRAS faint sources |
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| Authors: | Liu Bin Wang Gang Xia Xiao-yang Deng Zu-gan |
| Institution: | 1 Graduate School, University of Sciences & Technology of China, Beijing, 100039, China 2 Beijing Astronomical Observatory, Chinese Academy of Sciences, China 3 Tianjin Normal University, China |
| Abstract: | For four selected fields in the Catalogue of IRAS Faint Sources we have calculated the two-point correlation function of the galaxies and the correlation fractal dimension. The results show that the galaxies in all the fields are clustered on small angular scales. On larger scales, the distribution can be well expressed by a multi-level fractal. On still larger scales, possible typical scales can be detected using un-normalized pair counts. The average results for the four fields are consistent with previous results for the all-sky IRAS point sources and other sky surveys. |
| Keywords: | cosmology—IRAS galaxies—large-scale structure |
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