Extracting cosmological information from the angular power spectrum of the 2MASS Photometric Redshift catalogue

被引：25
作者：
Balaguera-Antolinez, A. [1 ,2 ]
Bilicki, M. [3 ,4 ,5 ]
Branchini, E. [6 ,7 ,8 ]
Postiglione, A. [6 ]
机构：
[1] Inst Astrofis Canarias, E-38205 Tenerife, Spain
[2] Univ La Laguna, Dept Astrofis, E-38206 Tenerife, Spain
[3] Leiden Univ, Leiden Observ, Niels Bohrweg 2, NL-2333 CA Leiden, Netherlands
[4] Natl Ctr Nucl Res, Div Astrophys, POB 447, PL-90950 Lodz, Poland
[5] Univ Zielona Gora, Janusz Gil Inst Astron, Ul Licealna 9, PL-65417 Zielona Gora, Poland
[6] Univ Roma Tre, Dipartamento Fis, Via Vasca Navale 84, I-00146 Rome, Italy
[7] INFN, Sez Roma 3, Via Vasca Navale 84, I-00146 Rome, Italy
[8] INAF, Osservatorio Astron Roma, Via Frascati 33, I-00078 Monte Porzio Catone, RM, Italy
来源：
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | 2018年 / 476卷 / 01期
基金：
英国科学技术设施理事会;
关键词：
galaxies: photometry; cosmological parameters; large-scale structure of Universe; cosmology: observations; DIGITAL SKY SURVEY; LUMINOUS RED GALAXIES; HALO OCCUPATION DISTRIBUTION; SPHERICAL HARMONIC-ANALYSIS; LARGE-SCALE STRUCTURE; STATISTICAL-ANALYSIS; SPACE DISTORTIONS; EXTRAGALACTIC OBJECTS; LOCAL HOLE; REAL-SPACE;
D O I：
10.1093/mnras/sty262
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Using the almost all-sky 2MASS Photometric Redshift catalogue (2MPZ) we perform for the first time a tomographic analysis of galaxy angular clustering in the local Universe (z < 0.24). We estimate the angular auto-and cross-power spectra of 2MPZ galaxies in three photometric redshift bins, and use dedicated mock catalogues to assess their errors. We measure a subset of cosmological parameters, having fixed the others at their Planck values, namely the baryon fraction f(b) = 0.14(-0.06)(+0.09), the total matter density parameter Omega(m) = 0.30 +/- 0.06, and the effective linear bias of 2MPZ galaxies b(eff), which grows from 1.1(-0.4)(+0.3) at < z > = 0.05 up to 2.1(-0.5)(+0.3) at < z > = 0.2, largely because of the flux-limited nature of the data set. The results obtained here for the local Universe agree with those derived with the same methodology at higher redshifts, and confirm the importance of the tomographic technique for next-generation photometric surveys such as Euclid or Large Synoptic Survey Telescope.
引用
收藏
页码：1050 / 1070
页数：21
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