Constraints on the Dark Side of the Universe and Observational Hubble Parameter Data
This paper is a review on the observational Hubble parameter data that have gained increasing attention in recent years for their illuminating power on the dark side of the universe: the dark matter, dark energy, and the dark age. Currently, there are two major methods of independent observational H...
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| Format: | Article |
| Language: | English |
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Wiley
2010-01-01
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| Series: | Advances in Astronomy |
| Online Access: | http://dx.doi.org/10.1155/2010/184284 |
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| author | Tong-Jie Zhang Cong Ma Tian Lan |
| author_facet | Tong-Jie Zhang Cong Ma Tian Lan |
| author_sort | Tong-Jie Zhang |
| collection | DOAJ |
| description | This paper is a review on the observational Hubble parameter data that have gained increasing
attention in recent years for their illuminating power on the dark side of the universe: the dark
matter, dark energy, and the dark age. Currently, there are two major methods of independent
observational H(z) measurement, which we summarize as the “differential age method” and the
“radial BAO size method.” Starting with fundamental cosmological notions such as the spacetime
coordinates in an expanding universe, we present the basic principles behind the two methods. We
further review the two methods in greater detail, including the source of errors. We show how the
observational H(z) data present itself as a useful tool in the study of cosmological models and
parameter constraint, and we also discuss several issues associated with their applications. Finally,
we point the reader to a future prospect of upcoming observation programs that will lead to some
major improvements in the quality of observational H(z) data. |
| format | Article |
| id | doaj-art-52b1122fe49d495f8e000cdd1958d23e |
| institution | Kabale University |
| issn | 1687-7969 1687-7977 |
| language | English |
| publishDate | 2010-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Astronomy |
| spelling | doaj-art-52b1122fe49d495f8e000cdd1958d23e2025-02-03T01:20:24ZengWileyAdvances in Astronomy1687-79691687-79772010-01-01201010.1155/2010/184284184284Constraints on the Dark Side of the Universe and Observational Hubble Parameter DataTong-Jie Zhang0Cong Ma1Tian Lan2Department of Astronomy, Beijing Normal University, Beijing 100875, ChinaDepartment of Astronomy, Beijing Normal University, Beijing 100875, ChinaDepartment of Astronomy, Beijing Normal University, Beijing 100875, ChinaThis paper is a review on the observational Hubble parameter data that have gained increasing attention in recent years for their illuminating power on the dark side of the universe: the dark matter, dark energy, and the dark age. Currently, there are two major methods of independent observational H(z) measurement, which we summarize as the “differential age method” and the “radial BAO size method.” Starting with fundamental cosmological notions such as the spacetime coordinates in an expanding universe, we present the basic principles behind the two methods. We further review the two methods in greater detail, including the source of errors. We show how the observational H(z) data present itself as a useful tool in the study of cosmological models and parameter constraint, and we also discuss several issues associated with their applications. Finally, we point the reader to a future prospect of upcoming observation programs that will lead to some major improvements in the quality of observational H(z) data.http://dx.doi.org/10.1155/2010/184284 |
| spellingShingle | Tong-Jie Zhang Cong Ma Tian Lan Constraints on the Dark Side of the Universe and Observational Hubble Parameter Data Advances in Astronomy |
| title | Constraints on the Dark Side of the Universe and Observational Hubble Parameter Data |
| title_full | Constraints on the Dark Side of the Universe and Observational Hubble Parameter Data |
| title_fullStr | Constraints on the Dark Side of the Universe and Observational Hubble Parameter Data |
| title_full_unstemmed | Constraints on the Dark Side of the Universe and Observational Hubble Parameter Data |
| title_short | Constraints on the Dark Side of the Universe and Observational Hubble Parameter Data |
| title_sort | constraints on the dark side of the universe and observational hubble parameter data |
| url | http://dx.doi.org/10.1155/2010/184284 |
| work_keys_str_mv | AT tongjiezhang constraintsonthedarksideoftheuniverseandobservationalhubbleparameterdata AT congma constraintsonthedarksideoftheuniverseandobservationalhubbleparameterdata AT tianlan constraintsonthedarksideoftheuniverseandobservationalhubbleparameterdata |