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Cosmography in f (Q) gravity
Mandal, Sanjay1; Wang, Deng2; Sahoo, P. K.1
2020-12-09
Source PublicationPHYSICAL REVIEW D
ISSN2470-0010
Volume102Issue:12Pages:10
AbstractCosmography is an ideal tool to investigate the cosmic expansion history of the Universe in a model-independent way. The equations of motion in modified theories of gravity are usually very complicated; cosmography may select practical models without imposing arbitrary choices a priori. We use the model-independent way to derive f(z) and its derivatives up to fourth order in terms of measurable cosmographic parameters. We then fit those functions into the luminosity distance directly. We perform the MCMC analysis by considering three different sets of cosmographic functions. Using the largest supernovae la Pantheon sample, we derive the constraints on the Hubble constant H-0 and the cosmographic functions, and find that the former two terms in Taylor expansion of luminosity distance work dominantly in f(Q) gravity.
Funding OrganizationDepartment of Science & Technology, Government of India, New Delhi ; Department of Science & Technology, Government of India, New Delhi ; CSIR, New Delhi, India ; CSIR, New Delhi, India ; Department of Science & Technology, Government of India, New Delhi ; Department of Science & Technology, Government of India, New Delhi ; CSIR, New Delhi, India ; CSIR, New Delhi, India ; Department of Science & Technology, Government of India, New Delhi ; Department of Science & Technology, Government of India, New Delhi ; CSIR, New Delhi, India ; CSIR, New Delhi, India ; Department of Science & Technology, Government of India, New Delhi ; Department of Science & Technology, Government of India, New Delhi ; CSIR, New Delhi, India ; CSIR, New Delhi, India
DOI10.1103/PhysRevD.102.124029
WOS KeywordPROBE WMAP OBSERVATIONS ; LAMBDA ; SUPERNOVAE ; WORLD
Language英语
Funding ProjectDepartment of Science & Technology, Government of India, New Delhi[DST/INSPIRE Fellowship/2018/IF180676] ; CSIR, New Delhi, India[03(1454)/19/EMR-II]
Funding OrganizationDepartment of Science & Technology, Government of India, New Delhi ; Department of Science & Technology, Government of India, New Delhi ; CSIR, New Delhi, India ; CSIR, New Delhi, India ; Department of Science & Technology, Government of India, New Delhi ; Department of Science & Technology, Government of India, New Delhi ; CSIR, New Delhi, India ; CSIR, New Delhi, India ; Department of Science & Technology, Government of India, New Delhi ; Department of Science & Technology, Government of India, New Delhi ; CSIR, New Delhi, India ; CSIR, New Delhi, India ; Department of Science & Technology, Government of India, New Delhi ; Department of Science & Technology, Government of India, New Delhi ; CSIR, New Delhi, India ; CSIR, New Delhi, India
WOS Research AreaAstronomy & Astrophysics ; Physics
WOS SubjectAstronomy & Astrophysics ; Physics, Particles & Fields
WOS IDWOS:000597145400008
PublisherAMER PHYSICAL SOC
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/80435
Collection中国科学院国家天文台
Corresponding AuthorMandal, Sanjay
Affiliation1.Birla Inst Technol & Sci Pilani, Dept Math, Hyderabad Campus, Hyderabad 500078, India
2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Mandal, Sanjay,Wang, Deng,Sahoo, P. K.. Cosmography in f (Q) gravity[J]. PHYSICAL REVIEW D,2020,102(12):10.
APA Mandal, Sanjay,Wang, Deng,&Sahoo, P. K..(2020).Cosmography in f (Q) gravity.PHYSICAL REVIEW D,102(12),10.
MLA Mandal, Sanjay,et al."Cosmography in f (Q) gravity".PHYSICAL REVIEW D 102.12(2020):10.
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