Bispectrum and nonlinear biasing of galaxies: Perturbation analysis, numerical simulation, and SDSS galaxy clustering
文献类型：期刊论文
| 作者 | Nishimichi, Takahiro; Kayo, Issha; Hikage, Chiaki; Yahata, Kazuhiro; Taruya, Atsushi; Jing, Yi Peng; Sheth, Ravi K.; Suto, Yasushi |
| 刊名 | PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
 |
| 出版日期 | 2007 |
| 卷号 | 59期号:1页码:93-106 |
| 关键词 | cosmology : large-scale structure of universe methods : statistical observations theory |
| 英文摘要 | We consider nonlinear biasing models of galaxies with particular attention to a correlation between the linear and quadratic biasing coefficients, b(1) and b(2). We first derive perturbative expressions for b(1) and b(2) in halo and peak biasing models. We then discuss our computations of the power spectra and bispectra of dark matter particles and halos using N-body simulation data and of volume-limited subsamples of Sloan Digital Sky Survey (SDSS) galaxies, and determine their b(1) and b(2). We find that the values of those coefficients at linear regimes (k < 0.2 h Mpc(-1)) are fairly insensitive to the redshift-space distortion and the survey volume shape. The resulting normalized amplitudes of the bispectra, Q, for equilateral triangles are insensitive to the values of b(1), implying that b(2) indeed correlates with b(1). The present results explain the previous finding of Kayo et al. (2004, PASJ, 56, 415) for the hierarchical relation of three-point correlation functions of SDSS galaxies. While the relations between b(1) and b(2) are quantitatively different for specific biasing models, their approximately similar correlations indicate a fairly generic outcome of the biasing due to the gravity in primordial Gaussian density fields. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | DIGITAL SKY SURVEY ; N-BODY SIMULATIONS ; LARGE-SCALE STRUCTURE ; SPECTROSCOPIC TARGET SELECTION ; 3-POINT CORRELATION-FUNCTIONS ; DARK-MATTER HALOES ; REDSHIFT-SPACE ; POWER-SPECTRUM ; DATA RELEASE ; GRAVITATIONAL-INSTABILITY |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000244977200010 |
| 源URL | [http://119.78.226.72/handle/331011/19435]  |
| 专题 | 上海天文台_星系宇宙学重点实验室 |
| 作者单位 | 1.Univ Tokyo, Dept Phys, Sch Sci, Tokyo 1130033, Japan 2.Nagoya Univ, Dept Phys & Astrophys, Nagoya, Aichi, Japan 3.Shanghai Astron Observ, Partner Grp MPI Astrophys, Shanghai 200030, Peoples R China 4.Univ Penn, Dept Phys & Astron, Philadelphia, PA 19130 USA |
| 推荐引用方式 GB/T 7714 | Nishimichi, Takahiro,Kayo, Issha,Hikage, Chiaki,et al. Bispectrum and nonlinear biasing of galaxies: Perturbation analysis, numerical simulation, and SDSS galaxy clustering[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2007,59(1):93-106. |
| APA | Nishimichi, Takahiro.,Kayo, Issha.,Hikage, Chiaki.,Yahata, Kazuhiro.,Taruya, Atsushi.,...&Suto, Yasushi.(2007).Bispectrum and nonlinear biasing of galaxies: Perturbation analysis, numerical simulation, and SDSS galaxy clustering.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,59(1),93-106. |
| MLA | Nishimichi, Takahiro,et al."Bispectrum and nonlinear biasing of galaxies: Perturbation analysis, numerical simulation, and SDSS galaxy clustering".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 59.1(2007):93-106. |
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来源：上海天文台
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