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Lin, HN; Li, X1; Chang, Z2
Model-independent distance calibration of high-redshift gamma-ray bursts and constrain on the Lambda CDM model
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
Language英语
Keywordgamma-ray burst: general GREATER-THAN 1 cosmological parameters HUBBLE DIAGRAM COSMOLOGICAL IMPLICATIONS STANDARD CANDLES PEAK LUMINOSITY DARK-ENERGY SUPERNOVAE SPECTRA ENERGETICS UNIVERSE
AbstractGamma-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.
2016
Volume455Issue:2Pages:2131-2138
Subject AreaAstronomy & Astrophysics
DOIhttp://dx.doi.org/10.1093/mnras/stv2471
Indexed BySCI
Funding OrganizationNational Natural Science Fund of China [11375203, 11305181] ; State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, China [Y5KF181CJ1]
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/23219
Collection理论物理所科研产出_SCI论文
Affiliation1.Chongqing Univ, Dept Phys, Chongqing 401331, Peoples R China
2.Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
3.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
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.
APA Lin, HN,Li, X,&Chang, Z.(2016).Model-independent distance calibration of high-redshift gamma-ray bursts and constrain on the Lambda CDM model.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,455(2),2131-2138.
MLA Lin, HN,et al."Model-independent distance calibration of high-redshift gamma-ray bursts and constrain on the Lambda CDM model".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 455.2(2016):2131-2138.
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