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Astrodynamical Space Test of Relativity using Optical Devices I (ASTROD I)-a class-M fundamental physics mission proposal for cosmic vision 2015-2025: 2010 Update
Braxmaier, Claus2; Dittus, Hansjoerg3; Foulon, Bernard4; Goeklue, Ertan1; Grimani, Catia5,6; Guo, Jian7; Herrmann, Sven1; Laemmerzahl, Claus1; Ni, Wei-Tou8; Peters, Achim9; Rievers, Benny1; Samain, Etienne10; Selig, Hanns1; Shaul, Diana11; Svehla, Drazen12; Touboul, Pierre4; Wang, Gang13; Wu, An-Ming14; Zakharov, Alexander F.15
2012-10-01
Source PublicationEXPERIMENTAL ASTRONOMY
ISSN0922-6435
Volume34Issue:2Pages:181-201
AbstractASTROD I is a planned interplanetary space mission with multiple goals. The primary aims are: to test General Relativity with an improvement in sensitivity of over 3 orders of magnitude, improving our understanding of gravity and aiding the development of a new quantum gravity theory; to measure key solar system parameters with increased accuracy, advancing solar physics and our knowledge of the solar system; and to measure the time rate of change of the gravitational constant with an order of magnitude improvement and the anomalous Pioneer acceleration, thereby probing dark matter and dark energy gravitationally. It is envisaged as the first in a series of ASTROD missions. ASTROD I will consist of one spacecraft carrying a telescope, four lasers, two event timers and a clock. Two-way, two-wavelength laser pulse ranging will be used between the spacecraft in a solar orbit and deep space laser stations on Earth, to achieve the ASTROD I goals.For this mission, accurate pulse timing with an ultra-stable clock, and a drag-free spacecraft with reliable inertial sensor are required. T2L2 has demonstrated the required accurate pulse timing; rubidium clock on board Galileo has mostly demonstrated the required clock stability; the accelerometer on board GOCE has paved the way for achieving the reliable inertial sensor; the demonstration of LISA Pathfinder will provide an excellent platform for the implementation of the ASTROD I drag-free spacecraft. These European activities comprise the pillars for building up the mission and make the technologies needed ready. A second mission, ASTROD or ASTROD-GW (depending on the results of ASTROD I), is envisaged as a three-spacecraft mission which, in the case of ASTROD, would test General Relativity to one part per billion, enable detection of solar g-modes, measure the solar Lense-Thirring effect to 10 parts per million, and probe gravitational waves at frequencies below the LISA bandwidth, or in the case of ASTROD-GW, would be dedicated to probe gravitational waves at frequencies below the LISA bandwidth to 100 nHz and to detect solar g-mode oscillations. In the third phase (Super-ASTROD), larger orbits could be implemented to map the outer solar system and to probe primordial gravitational-waves at frequencies below the ASTROD bandwidth. This paper on ASTROD I is based on our 2010 proposal submitted for the ESA call for class-M mission proposals, and is a sequel and an update to our previous paper (Appouchaux et al., Exp Astron 23:491-527, 2009; designated as Paper I) which was based on our last proposal submitted for the 2007 ESA call. In this paper, we present our orbit selection with one Venus swing-by together with orbit simulation. In Paper I, our orbit choice is with two Venus swing-bys. The present choice takes shorter time (about 250 days) to reach the opposite side of the Sun. We also present a preliminary design of the optical bench, and elaborate on the solar physics goals with the radiation monitor payload. We discuss telescope size, trade-offs of drag-free sensitivities, thermal issues and present an outlook.
KeywordProbing The Fundamental Laws Of Spacetime Exploring The Microscopic Origin Of Gravity Testing Relativistic Gravity Mapping Solar-system Gravity Solar G-mode Detection Gravitational-wave Detection Astrod Astrod i Astrod-gw
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1007/s10686-011-9281-y
WOS KeywordASTROD-I ; LISA
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000309230600003
Citation statistics
Cited Times:30[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/8024
Collection近地天体探测和太阳系天体研究团组
Affiliation1.Univ Bremen, Ctr Appl Space Technol & Micrograv ZARM, D-28359 Bremen, Germany
2.Univ Appl Sci, HTWG Konstanz, Fac Mech Engn, IOS Inst Opt Syst, Constance, Germany
3.German Aerosp Ctr, Inst Space Syst, D-28359 Bremen, Germany
4.Off Natl Etud & Rech Aerosp, F-92322 Chatillon, France
5.Univ Urbino Carlo Bo, DiSBeF Dept, Urbino, PU, Italy
6.Ist Nazl Fis Nucl, I-50125 Florence, Italy
7.Delft Univ Technol TU Delft, Delft, Netherlands
8.Shanghai Normal Univ, Shanghai United Ctr Astrophys, Shanghai 200234, Peoples R China
9.Humboldt Univ, Dept Phys, D-10117 Berlin, Germany
10.Observ Cote Azur, UMR Gemini, R&D Metrol, F-06460 Caussols, France
11.Univ London Imperial Coll Sci Technol & Med, Blackett Lab, High Energy Phys Grp, London SW7 2BZ, England
12.ESA ESOC, Nav Off, Darmstadt, Germany
13.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
14.Natl Space Org NSPO, Hsinchu 30078, Taiwan
15.Inst Theoret & Expt Phys, Moscow 117259, Russia
Recommended Citation
GB/T 7714
Braxmaier, Claus,Dittus, Hansjoerg,Foulon, Bernard,et al. Astrodynamical Space Test of Relativity using Optical Devices I (ASTROD I)-a class-M fundamental physics mission proposal for cosmic vision 2015-2025: 2010 Update[J]. EXPERIMENTAL ASTRONOMY,2012,34(2):181-201.
APA Braxmaier, Claus.,Dittus, Hansjoerg.,Foulon, Bernard.,Goeklue, Ertan.,Grimani, Catia.,...&Zakharov, Alexander F..(2012).Astrodynamical Space Test of Relativity using Optical Devices I (ASTROD I)-a class-M fundamental physics mission proposal for cosmic vision 2015-2025: 2010 Update.EXPERIMENTAL ASTRONOMY,34(2),181-201.
MLA Braxmaier, Claus,et al."Astrodynamical Space Test of Relativity using Optical Devices I (ASTROD I)-a class-M fundamental physics mission proposal for cosmic vision 2015-2025: 2010 Update".EXPERIMENTAL ASTRONOMY 34.2(2012):181-201.
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