Einstein Gravity Explorer-a medium-class fundamental physics mission
文献类型：期刊论文
| 作者 | Schiller, S.1; Tino, G. M.2,3; Gill, P.4; Salomon, C.5; Sterr, U.6; Peik, E.6; Nevsky, A.1; Goerlitz, A.1; Svehla, D.7; Ferrari, G.2,3 |
| 刊名 | EXPERIMENTAL ASTRONOMY
 |
| 出版日期 | 2009-03-01 |
| 卷号 | 23期号:2页码:573-610 |
| 关键词 | Gravitational redshift Gravitational frequency shift Atomic clock Optical clock Equivalence principle Local position invariance Special relativity Lorentz invariance General relativity Geoid Frequency transfer Microwave link Gravitational potential |
| ISSN号 | 0922-6435 |
| 英文摘要 | The Einstein Gravity Explorer mission (EGE) is devoted to a precise measurement of the properties of space-time using atomic clocks. It tests one of the most fundamental predictions of Einstein's Theory of General Relativity, the gravitational redshift, and thereby searches for hints of quantum effects in gravity, exploring one of the most important and challenging frontiers in fundamental physics. The primary mission goal is the measurement of the gravitational redshift with an accuracy up to a factor 10(4) higher than the best current result. The mission is based on a satellite carrying cold atom-based clocks. The payload includes a cesium microwave clock (PHARAO), an optical clock, a femtosecond frequency comb, as well as precise microwave time transfer systems between space and ground. The tick rates of the clocks are continuously compared with each other, and nearly continuously with clocks on earth, during the course of the 3-year mission. The highly elliptic orbit of the satellite is optimized for the scientific goals, providing a large variation in the gravitational potential between perigee and apogee. Besides the fundamental physics results, as secondary goals EGE will establish a global reference frame for the Earth's gravitational potential and will allow a new approach to mapping Earth's gravity field with very high spatial resolution. The mission was proposed as a class-M mission to ESA's Cosmic Vision Program 2015-2025. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 学科主题 | Astronomy & Astrophysics |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | OPTICAL FREQUENCY STANDARD ; GENERAL-RELATIVITY ; CLOCK ; SPACE ; YB-171(+) ; CONSTANTS ; REDSHIFT ; SYSTEM ; GRACE ; SHIFT |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000263505600004 |
| 公开日期 | 2011-12-08 |
| 源URL | [http://159.226.72.40/handle/332002/1743]  |
| 专题 | 紫金山天文台_近地天体探测和太阳系天体研究团组 |
| 作者单位 | 1.Univ Dusseldorf, Inst Expt Phys, D-40225 Dusseldorf, Germany 2.Univ Florence, CNR, Ist Nazl Fis Nucl, Sez Firenze,LENS Lab, I-50019 Sesto Fiorentino, Italy 3.Univ Florence, Dipartimento Fis, I-50019 Sesto Fiorentino, Italy 4.Natl Phys Lab, Teddington TW11 0LW, Middx, England 5.Ecole Normale Super, Lab Kastler Brossel, F-75231 Paris, France 6.Phys Tech Bundesanstalt, D-38116 Braunschweig, Germany 7.Tech Univ Munich, Inst Astron & Phys Geodesy, D-80333 Munich, Germany 8.Polo Sci, Sez Firenze, INFN, I-50019 Sesto Fiorentino, Italy 9.Observ Paris, LNE SYRTE, F-75014 Paris, France 10.Leibniz Univ Hannover, Inst Quantenopt, D-30167 Hannover, Germany |
| 推荐引用方式 GB/T 7714 | Schiller, S.,Tino, G. M.,Gill, P.,et al. Einstein Gravity Explorer-a medium-class fundamental physics mission[J]. EXPERIMENTAL ASTRONOMY,2009,23(2):573-610. |
| APA | Schiller, S..,Tino, G. M..,Gill, P..,Salomon, C..,Sterr, U..,...&Schaefer, W..(2009).Einstein Gravity Explorer-a medium-class fundamental physics mission.EXPERIMENTAL ASTRONOMY,23(2),573-610. |
| MLA | Schiller, S.,et al."Einstein Gravity Explorer-a medium-class fundamental physics mission".EXPERIMENTAL ASTRONOMY 23.2(2009):573-610. |
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来源：紫金山天文台
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