Details
| Originalsprache | Englisch |
|---|---|
| Aufsatznummer | L5 |
| Fachzeitschrift | Astronomy and astrophysics |
| Jahrgang | 522 |
| Ausgabenummer | 3 |
| Publikationsstatus | Veröffentlicht - 29 Okt. 2010 |
Abstract
Context. Forty years of lunar laser ranging (LLR) data provide an excellent basis to determine various parameters of the Earth-Moon system as well as parameters related to gravitational physics. Aims.We update the Institut f̈r Erdmessung (IfE) LLR model taking the effect of a fluid lunar core into consideration. The temporal variation in the gravitational constant G̈/G0 and the strong equivalence principle, parameterized by the Nordtvedt parameter , are investigated. Methods.A set of LLR observations from 1970 to 2009 was analysed and the parameters were determined by a least squares adjustment in two runs. After solving for classical Newtonian parameters (e.g. initial conditions for the lunar orbit and rotation) in the first run, relativistic parameters were determined in the second run. Results.The upper limits to the gravitational constant and the Nordtvedt parameter were found to be G̈/G0 = (.0.7 ± 3.8)×10-13 yr-1 and = (.0.6 ± 5.2)×10-4.
ASJC Scopus Sachgebiete
- Physik und Astronomie (insg.)
- Astronomie und Astrophysik
- Erdkunde und Planetologie (insg.)
- Astronomie und Planetologie
Zitieren
- Standard
- Harvard
- Apa
- Vancouver
- BibTex
- RIS
in: Astronomy and astrophysics, Jahrgang 522, Nr. 3, L5, 29.10.2010.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Lunar laser ranging test of the Nordtvedt parameter and a possible variation in the gravitational constant
AU - Hofmann, F.
AU - Müller, J.
AU - Biskupek, L.
PY - 2010/10/29
Y1 - 2010/10/29
N2 - Context. Forty years of lunar laser ranging (LLR) data provide an excellent basis to determine various parameters of the Earth-Moon system as well as parameters related to gravitational physics. Aims.We update the Institut f̈r Erdmessung (IfE) LLR model taking the effect of a fluid lunar core into consideration. The temporal variation in the gravitational constant G̈/G0 and the strong equivalence principle, parameterized by the Nordtvedt parameter , are investigated. Methods.A set of LLR observations from 1970 to 2009 was analysed and the parameters were determined by a least squares adjustment in two runs. After solving for classical Newtonian parameters (e.g. initial conditions for the lunar orbit and rotation) in the first run, relativistic parameters were determined in the second run. Results.The upper limits to the gravitational constant and the Nordtvedt parameter were found to be G̈/G0 = (.0.7 ± 3.8)×10-13 yr-1 and = (.0.6 ± 5.2)×10-4.
AB - Context. Forty years of lunar laser ranging (LLR) data provide an excellent basis to determine various parameters of the Earth-Moon system as well as parameters related to gravitational physics. Aims.We update the Institut f̈r Erdmessung (IfE) LLR model taking the effect of a fluid lunar core into consideration. The temporal variation in the gravitational constant G̈/G0 and the strong equivalence principle, parameterized by the Nordtvedt parameter , are investigated. Methods.A set of LLR observations from 1970 to 2009 was analysed and the parameters were determined by a least squares adjustment in two runs. After solving for classical Newtonian parameters (e.g. initial conditions for the lunar orbit and rotation) in the first run, relativistic parameters were determined in the second run. Results.The upper limits to the gravitational constant and the Nordtvedt parameter were found to be G̈/G0 = (.0.7 ± 3.8)×10-13 yr-1 and = (.0.6 ± 5.2)×10-4.
KW - celestial mechanics
KW - ephemerides
KW - gravitation
KW - Moon
UR - http://www.scopus.com/inward/record.url?scp=78049478014&partnerID=8YFLogxK
U2 - 10.1051/0004-6361/201015659
DO - 10.1051/0004-6361/201015659
M3 - Article
AN - SCOPUS:78049478014
VL - 522
JO - Astronomy and astrophysics
JF - Astronomy and astrophysics
SN - 0004-6361
IS - 3
M1 - L5
ER -