Method of determining cosmological parameter ranges with samples of candles with an intrinsic distribution
文献类型：期刊论文
| 作者 | Tan YP(覃一平)1,2 ; Zhang BB(张彬彬)1,3; Dong YM(董云明)1,3; Zhang FW(张富文)1,2,3; Li HZ(李怀珍)1,3; Jia LW(贾兰伟)1,3; Mao LS(毛李胜)1,3; Lu RJ(陆睿静)1,2,3; Yi, TF2; Cui XH(崔晓红)1,3
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| 刊名 | CHINESE PHYSICS
 |
| 出版日期 | 2006-07 |
| 卷号 | 15期号:7页码:1645-1652 |
| 关键词 | cosmological parameters observational cosmology distance scale |
| ISSN号 | 1009-1963 |
| 产权排序 | 第一完成单位 |
| 通讯作者 | Qin, YP (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China. |
| 英文摘要 | In this paper, the effect of the intrinsic distribution of cosmological candles is investigated. We find that in the case of a narrow distribution the deviation of the observed modulus of sources from the expected central value can be estimated within a ceratin range. We thus introduce lower and upper limits of chi(2), chi(2)(min) and chi(2)(max) to estimate cosmological parameters by applying the conventional minimizing chi(2) method. We apply this method to a gamma-ray burst (GRB) sample as well as to a combined sample including this GRB sample and an SN Ia sample. Our analysis shows that: a) in the case of assuming an intrinsic distribution of candles of the GRB sample, the effect of the distribution is obvious and should not be neglected; b) taking into account this effect would lead to a poorer constraint of the cosmological parameter ranges. The analysis suggests that in the attempt of constraining the cosmological model with current GRB samples, the results tend to be worse than was previously anticipated if the mentioned intrinsic distribution does exist. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | GAMMA-RAY BURSTS ; HIGH-REDSHIFT SUPERNOVAE ; PROBE WMAP OBSERVATIONS ; HUBBLE-SPACE-TELESCOPE ; EQUATION-OF-STATE ; DARK ENERGY ; CARDASSIAN EXPANSION ; OBSERVATIONAL CONSTRAINTS ; IA SUPERNOVAE ; ANGULAR SIZE |
| 收录类别 | SCI ; EI |
| 原文出处 | http://iopscience.iop.org/1009-1963/15/7/044/ |
| 语种 | 英语 |
| WOS记录号 | WOS:000239006600044 |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/7002]  |
| 专题 | 云南天文台_星系研究组 |
| 作者单位 | 1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China 2.Physics Department, Guangxi University, Nanning, Guangxi 530004, China 3.The Graduate School of the Chinese Academy of Sciences, Beijing 100049, China |
| 推荐引用方式 GB/T 7714 | Tan YP,Zhang BB,Dong YM,et al. Method of determining cosmological parameter ranges with samples of candles with an intrinsic distribution[J]. CHINESE PHYSICS,2006,15(7):1645-1652. |
| APA | Tan YP.,Zhang BB.,Dong YM.,Zhang FW.,Li HZ.,...&Zhang ZB.(2006).Method of determining cosmological parameter ranges with samples of candles with an intrinsic distribution.CHINESE PHYSICS,15(7),1645-1652. |
| MLA | Tan YP,et al."Method of determining cosmological parameter ranges with samples of candles with an intrinsic distribution".CHINESE PHYSICS 15.7(2006):1645-1652. |
入库方式： OAI收割
来源：云南天文台
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