Pioneer anomaly: What can we learn from future pla...

2005 ◽  
Author(s):  
Andreas Rathke ◽  
Dario Izzo
Keyword(s):  
Pioneer Anomaly

PRESENT STATUS OF THE STUDY OF THE ANOMALOUS ACCELERATION OF THE PIONEER 10/11 SPACECRAFT

2005 ◽  
Vol 20 (11) ◽  
pp. 2304-2308 ◽  
Author(s):  
J. P. MBELEK
Keyword(s):  
Weak Field ◽  
Low Velocity ◽  
Pioneer Anomaly ◽  
Real Change ◽  
Local Manifestation ◽  
Anomalous Acceleration ◽  
Expansion Of The Universe ◽  
The Universe ◽  
Pioneer 10 ◽  
Radiometric Data

Results from an almost twenty years study of radiometric data from Pioneer 10/11, Galileo and Ulysses spacecraft indicate an anomalous time depending blueshift1, 2 which bares hardly prosaic explanations. Local manifestation of the expansion of the universe or new force terms are not favored either by the observational data. So, we explore the possibility that the reported anomaly, referred to as the "Pioneer anomaly", does not result from a real change in velocity. It turns out that the main Pioneer anomaly may be looked at as a new validation of general relativity (GR) in the weak field and low velocity limit on account of the "machian" behavior of quintessence like dark energy.

scholarly journals 'Pioneer anomaly' not so anomalous

Nature ◽  
2011 ◽  
Vol 477 (7362) ◽  
pp. 9-9
Keyword(s):  
Pioneer Anomaly

scholarly journals A NON-GEODESIC MOTION IN THE R-1 THEORY OF GRAVITY TUNED WITH OBSERVATIONS

2008 ◽  
Vol 23 (02) ◽  
pp. 109-114 ◽  
Author(s):  
CHRISTIAN CORDA
Keyword(s):  
Dark Matter ◽  
High Order ◽  
Ricci Scalar ◽  
Geodesic Motion ◽  
General Picture ◽  
Test Particles ◽  
Pioneer Anomaly ◽  
Theories Of Gravity ◽  
Theory Of Gravity

In the general picture of high order theories of gravity, recently, the R-1 theory has been analyzed in two different frameworks. In this letter a third context is added, considering an explicit coupling between the R-1 function of the Ricci scalar and the matter Lagrangian. The result is a non-geodesic motion of test particles which, in principle, could be connected with Dark Matter and Pioneer anomaly problems.

scholarly journals Gravity tests with INPOP planetary ephemerides

2009 ◽  
Vol 5 (S261) ◽  
pp. 159-169 ◽  
Author(s):  
A. Fienga ◽  
J. Laskar ◽  
P. Kuchynka ◽  
C. Leponcin-Lafitte ◽  
H. Manche ◽  
...  
Keyword(s):  
Solar System ◽  
The Sun ◽  
Constant Acceleration ◽  
Pioneer Anomaly

AbstractWe present here several gravity tests made with the latest INPOP08 planetary ephemerides. We first propose two methods to estimate the PPN parameter β and its correlated value, the Sun J2, and we discuss the correlation between the Sun J2 and the mass of the asteroid ring. We estimate a possible advance in the planet perihelia. We also show that no constant acceleration larger than 1/4 of the Pioneer anomaly is compatible with the observed motion of the planets in our Solar System.

Can charge drag explain the Pioneer anomaly?

2007 ◽  
Vol 646 (1) ◽  
pp. 1-5 ◽  
Author(s):  
William F. Hall
Keyword(s):  
Pioneer Anomaly

scholarly journals SEARCH FOR A STANDARD EXPLANATION OF THE PIONEER ANOMALY

2002 ◽  
Vol 17 (14) ◽  
pp. 875-885 ◽  
Author(s):  
JOHN D. ANDERSON ◽  
EUNICE L. LAU ◽  
SLAVA G. TURYSHEV ◽  
PHILIP A. LAING ◽  
MICHAEL MARTIN NIETO
Keyword(s):  
Doppler Frequency ◽  
Frequency Drift ◽  
The Sun ◽  
Physical Origin ◽  
Thermal Models ◽  
Pioneer Anomaly ◽  
Pioneer 10

The data from Pioneer 10 and 11 shows an anomalous, constant, Doppler frequency drift that can be interpreted as an acceleration directed towards the Sun of aP = (8.74 ± 1.33) × 10-8 cm / s 2. Although one can consider a new physical origin for the anomaly, one must first investigate the contributions of the prime candidates, which are systematics generated on board. Here we expand upon previous analyses of thermal systematics. We demonstrate that thermal models put forth so far are not supported by the analyzed data. Possible ways to further investigate the nature of the anomaly are proposed.

Pioneer Anomaly is Fading

Focus ◽  
2011 ◽  
Vol 28 ◽  
Author(s):  
David Lindley
Keyword(s):  
Pioneer Anomaly
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