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题名: Model-independent distance calibration of high-redshift gamma-ray bursts and constrain on the Lambda CDM model
作者: Lin, HN ;  Li, X ;  Chang, Z
刊名: MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
出版日期: 2016
卷号: 455, 期号:2, 页码:2131-2138
关键词: gamma-ray burst: general ;  cosmological parameters
学科分类: Astronomy & Astrophysics
DOI: http://dx.doi.org/10.1093/mnras/stv2471
通讯作者: Lin, HN (reprint author), Chongqing Univ, Dept Phys, Chongqing 401331, Peoples R China.
文章类型: Article
英文摘要: Gamma-ray bursts (GRBs) are luminous enough to be detectable up to redshift z similar to 10. They are often proposed as complementary tools to Type Ia supernovae (SNe Ia) in tracing the Hubble diagram of the Universe. The distance calibrations of GRBs usually make use of one or some of the empirical luminosity correlations, such as iota(lag)-L, V-L, E-p-L, E-p-E-gamma, tau(RT)-L and E-p-E-iso relations. These calibrating methods are based on the underlying assumption that the empirical luminosity correlations are universal over all redshift range. In this paper, we test the possible redshift dependence of six luminosity correlations by dividing GRBs into low-z and high-z classes according to their redshift smaller or larger than 1.4. It is shown that the E-p-E-gamma relation for low-z GRBs is consistent with that for high-z GRBs within 1 sigma uncertainty. The intrinsic scatter of V-L relation is too large to make a convincing conclusion. For the rest four correlations, however, low-z GRBs differ from high-z GRBs at more than 3 sigma confidence level. As such, we calibrate GRBs using the E-p-E-gamma relation in a model-independent way. The constraint of high-z GRBs on the Lambda cold dark matter (Lambda CDM) model gives Omega(M) = 0.302 +/- 0.142(1 sigma), well consistent with the Planck 2015 results.
类目[WOS]: Astronomy & Astrophysics
关键词[WOS]: GREATER-THAN 1 ;  HUBBLE DIAGRAM ;  COSMOLOGICAL IMPLICATIONS ;  STANDARD CANDLES ;  PEAK LUMINOSITY ;  DARK-ENERGY ;  SUPERNOVAE ;  SPECTRA ;  ENERGETICS ;  UNIVERSE
收录类别: SCI
项目资助者: National Natural Science Fund of China [11375203, 11305181] ;  State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF181CJ1]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21806
Appears in Collections:理论物理所2016年知识产出_期刊论文

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Recommended Citation:
Lin, HN,Li, X,Chang, Z. Model-independent distance calibration of high-redshift gamma-ray bursts and constrain on the Lambda CDM model[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2016,455(2):2131-2138.
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