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Conference on
The
Pioneer Anomaly
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Observations, Attempts at Explanation, Further Exploration -
ZARM,
Bremen 18. - 19. May 2004
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Objective
Time and Place
Organization
Fees
Schedule
+ Talks
Participants
Travel
Sponsors
Literature
Pictures
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Objective:
Recently,
the observation of an anomalous behaviour of massive bodies
in weak gravitational fields attracted some interest. The most
prominent example is the Pioneer anomaly. Another example concerns
the rotation curves of galaxies. On the phenomenological side
this behaviour has been related, e.g., on a phenomenological
level, to a theory with a modified Newtonian dynamics (MOND
theory) or, on a more fundamental level, to a bi-metric theory.
Also its relation to dark matter and dark energy has been discussed.
In this meeting the status of this area and possible approaches
for further exploration and clarification will be discussed.
Time
and Place:
Begin:
Tuesday, 18. May 2004 at 9:45
End: Wednesday, 19. May 2004,
The
lectures will be held at
Center for Applied Space Technology and Microgravity (ZARM)
University Bremen
Am Fallturm
28359 Bremen
Germany
Organization:
Lämmerzahl, Claus
ZARM
University of Bremen
Am Fallturm
28359 Bremen
Germany
e-mail: laemmerzahl@zarm.uni-bremen.de
Phone: +49 (0)421 - 218 - 8687
Fax: +49 (0)421 - 218 - 2521
Conference
Fees:
We will
take conference fees of 30 Euro. We are able to accept credit
cards.
These fees
cover lunchs, coffe breaks and the conference dinner.
Schedule and Talks:
| Monday
17.5. |
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approx.
18:00
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Short visit of the City of Bremen
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19:30
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Dinner for those who already arrived
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| Tuesday
18.5. |
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09:45
- 10:00
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Lämmerzahl/Dittus
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Welcome
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Overview
lectures
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10:00
- 10:45
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Turyshev
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The Pioneer effect: History and overview
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10:45
- 11:45
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Nieto
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Finding the origin of the Pioneer anomaly
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11:45
- 12:30
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Turyshev
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Overview:
proposed mechanisms to explain the Pioneer anomaly and
missions to test it
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12:30
- 13:30
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Lunch
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Attempts
at explanations
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13:30
- 14:15
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Mashhoon
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Attempts at explanations within standard physics
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14:15
- 14:45
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Bertolami
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Pioneer anomaly, braneworlds and scalar fields
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14:45
- 15:15
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Rosales
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The Pioneer
anomaly is just a cosmological Berry phase
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15:15
- 15:45
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Ranada
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Pioneer acceleration, light acceleration and time acceleration
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15:45
- 16:15
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coffee
break
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proposed
missions
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16:15
-17:00
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Nieto
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A proposed mission to verify the Pioneer anomaly
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17:00
-17:30
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Johann
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ENIGMA - a mission exploring the Pioneer effect
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17:30
- 18:00
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Rathke
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Testing for the Pioneer anomaly on a Pluto-exploration mission
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18:00
- 18:30
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Penanen
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Dark
Matter Explorer Mission
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18:30
- 19:00
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Ni /
Lämmerzahl
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Deep space mission ASTROD: MOND and the Pioneer anomaly
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19:30
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Conference
Dinner
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| Wednesday
19.5. |
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Detection
of forces
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09:00
- 09:45
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Reynaud
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Testing
Newton force law at short and long distances
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09:45
- 10:05
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Rasel
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Atom interferometer based inertial sensors for long term missions?
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10:05
- 10:25
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Bouyer
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Atomic
interferometry with coherent ensembles
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10:25
- 11:00
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Coffe
break
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11:00
- 11:30
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Tucker
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Sagnac
Revisited: A Spacetime Perspective
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11:30
- 12:00
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Blome
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The Cosmological Constant and Non-Newtonian Gravity
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12:00
- 12:30
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Bertolami
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ESA Study on Gravity Control and its Influence on Space Propulsion
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12:30
- 13:30
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Lunch
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Other
missions
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13:30
- 14:00
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Turyshev
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The LATOR
mission
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14:00
- 14:10
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Dachwald
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Fast
solar system escape missions using non-futuristic solar
sails
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14:10
- 14:40
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Turyshev
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Cassini measurement of gravitational time delay
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14:40
- 15:15
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Drop-tower
tour
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15:15
- 15:45
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Coffe
break
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Fundamental
physics at NASA and ESA
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15:45
- 16:15
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Turyshev
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NASA
Fundamental Physics
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16:15
- 16:45
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de Matos
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Perspectives
in Fundamental Physics in Space
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16:45
- 16:55
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Reinhard
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ESA call:
cosmic vision 2015
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16:55
- 18:30
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All
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Discussion
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19:00
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Dinner and end of workshop
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(subject to changes)
Participants:
Angonin, Marie-Christine (Paris,
France)
Bertolami, Orfeu (Lisboa, Portugal)
Blome, Hansjoachim (FH Aachen)
Bordé, Christian (Institute Poincarée, Villetaneuse, France)
Boyer, Philippe (Orsay, France)
Brihaye, Yves (Univ. Mons, Belgium)
Dachwald, Bernd (DLR, Köln, Germany)
Dittus, Hansjörg (ZARM, Univ. Bremen, Germany)
Duif, Chris P. (Delft Univ., The Netherlands)
Genet, Frank (Paris, France)
Hartmann, Betti (International Univ. Bremen, Germany)
Hehl, Friedrich W. (Univ. Köln, Germany)
Johann, Ulrich (Astrium, Friedrichshafen, Germany)
Kent, Barry (Rutherford Appleton Laboratory, Chilton, UK)
Kleihaus, Burkhard (Univ. Oldernburg, Germany)
Kunz, Jutta (Univ. Oldernburg, Germany)
Lämmerzahl, Claus (ZARM, Univ. Bremen, Germany)
Mashhoon, Bahram (University of Missouri-Columbia, USA)
Matos, Clovis de (ESA, Paris, France)
Mehls, Carsten (ZARM, Univ. Bremen, Germany)
Nieto, Michael M. (Los Alamos, USA)
Páramos, Jorge (Lisboa, Portugal)
Penanen, Konstantin (JPL, USA)
Peters, Achim (Humboldt-Univ. Berlin, Germany)
Perlick, Volker (TU Berlin, Germany)
Ranada, Antonio F. (Univ. Madrid, Spain)
Rasel, Ernst M. (Institute for Quantum Optics, Univ. Hannover,
Germany)
Rathke, Andreas (ESA, Noordvijk, The Netherlands)
Reinhard, Rüdeger (ESA, Noordvijk, The Netehrlands)
Reynaud, Serge (Univ. Paris VI, France)
Rosales, Jose Luis ( Madrid, Spain)
Schäfer, Gerhard (Univ.
Jena, Germany)
Schalinski, Cornelius (OHB Systeme, Bremen, Germany)
Scheithauer, Silvia (ZARM, Univ. Bremen, Germany)
Schleicher, Alexander (ZARM, Univ. Bremen, Germany)
Seboldt, Wolfgang (DLR, Köln, Germany)
Selig, Hanns (ZARM, Univ. Bremen, Germany)
Theil, Stephan (ZARM, Univ. Bremen,
Germany)
Touboul, Pierre (ONERA, Paris, France)
Tucker, Robin (Univ Lancaster, UK)
Turyshev, Slava G. (JPL, USA)
Travel:
There
are good connections between Bremen airport and the international
airports Frankfurt and
Amsterdam.
Travel from the airport to Hotel Horner
Eiche: Take tram No 6 (direction ''University'') to main train
station, change there to tram No 4 (direction ''Borgfeld''),
get off the tram at stop ''Kopernikusstrasse'' (15 stops after
main station), then 2 minutes by foot to the hotel. The tram
ticket costs 1.95 Euro. [Last tram at 23:44.]
From main station to hotel: take
tram No 4 (direction ''Borgfeld'') and get off the tram at stop
''Kopernikusstrasse'' (15th stop), then 2 minutes by foot to the hotel. The
tram ticket costs 1.95 Euro. [Last tram at 0:30.]
Web page of Hotel
Horner Eiche.
Here
is the travel information about how to
arrive at ZARM.
From
Hotel Horner Eiche there is a public bus to ZARM (bus No 32).
The bus stop is in front of the hotel. The single fare is 80
Euro-cents.
Here
is a map showing
the location of the Hotel Horner Eiche and the Bremen Drop Tower
(ZARM). This is in the north of Bremen. The distance between
the Hotel and the ZARM is about 2 km.
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Sponsors:
This
meeting is sponsored by EADS Astrium and ZARM.
Literature:
On the observation
- J.D. Anderson, P.A.
Laing, E.L. Lau, A.S. Liu, M.M. Nieto, and S.G. Turyshev:
Study of the anomalous acceleration of Pioneer 10 and 11,
Phys. Rev. D 65, 082004 (2002).
- J.D. Anderson, P.A.
Laing, E.L. Lau, A.S. Liu, M.M. Nieto, and S.G. Turyshev:
Indication, from Pioneer 10/11, Galileo, and Ulysses data,
of an apparent anomalous, weak, long-range acceleration, Phys.
Rev. Lett. 81, 2858 (1998). [Comment by J.I. Katz: Phys. Rev.
Lett. 83, 1892 (1999); Reply: Phys. Rev. Lett.
83, 1893 (1999)].
Attempts at explanations within
standard physics
- A.F. Ranada: The Pioneer
anomaly as acceleration of the clocks, gr-qc/0410084.
- Y.G. Yi: On the indication
from Pioneer 10/11 data of an apparent anomalous, weak, long-range
acceleration, Gen. Rel. Grav. 36, 875 (2004).
- D. Bini, C. Cherubini, and B. Mashhoon: Vacuum
C-Metric and the Gravitational Stark Effect, Phys. Rev.
D 70, 044020 (2004) [gr-qc/0401071].
- J.L. Rosales: The Pioneer's Anomalous Doppler
Drift as a Berry Phase, gr-qc/0401014.
- J.D. Anderson and B. Mashhoon: Pioneer Anomaly
and the Helicity-Rotation Coupling, Phys. Lett. A 315, 199
(2003).
- M.M. Nieto and S.G. Turyshev: Finding rhe origin
of the Pioneer anomaly, gr-qc/0308017.
- L.K. Scheffer: Conventional forces can explain
the anomalous acceleration of Pioneer 10, Phys. Rev.
D 67, 084021 (2003).
- J.-L. Rosales, and J.-L. Sanchez--Gomez: The
'Pioneer effect' as a manifestation of the cosmic expansion
in the solar system, gr-qc/9810085.
J.L. Rosales: The Pioneer's acceleration anomaly and Hubble's
constant, gr-qc/0212019.
- J.D. Anderson, E.L. Lau, S.G. Turyshev, et
al.: Search for a standard explanation of the pioneer anomaly,
Mod. Phys. Lett. A 17, 875 (2002).
- L. Licht: The Expanding Universe, Planetary
Motion and the Pioneer 10/11 Anomaly, gr-qc/0102103.
Phenomenology
- J.D. Bekenstein: Relativistic gravitation theory
for the MOND paradigm, astro-ph/0403694.
- M. Milgrom: MOND - theoretical aspects, New
Astr. Rev. 46, 741 (2002).
- D. Ostvang: An explanation of the 'Pioneer
effect' based on quasi-metric relativity, Class. Quantum
Grav. 19, 4131 (2002).
Attempts at explanations with
''new physics''
- K.
Krogh: Origin of the Blueshift in Signals from Pioneer 10
and 11, astro-ph/0409615
- R.
Foot: Implications of the DAMA and CRESST experiments for
mirror matter-type dark matter, Phys. Rev. D 69,
036001 (2004).
- K.
Trencevski: Hubble red shift and the anomalous acceleration
of Pioneer 10 and 11, gr-qc/0402024
- J.W. Moffat: Modified Gravitational Theory
and the Pioneer 10 and 11 Spacecraft Anomalous Acceleration,
gr-qc/0405076.
- A.F. Ranada: On the Pioneer acceleration as
light acceleration, gr-qc/0403013.
- A.F. Ranada: The light speed and the interplay
of the quantum vacuum, the gravitation of all the universe
and the fourth Heisenberg relation, Int. J. Mod. Phys.
D 12, 1755 (2003).
- M. Cadoni: An Einstein-like theory of gravity
with a non-Newtonian weak-field limit, gr-qc/0312054.
- O. Bertolami, J. Páramos: The Pioneer anomaly
in a bimetric theory of gravity on the brane, gr-qc/0310101.
- A.F. Ranada: The Pioneer riddle, the quantum
vacuum and the acceleration of light, Europhys. Lett.
63, 653 (2002).
- M.A. Ivanov: Non-Dopplerian cosmological redshift
parameters in a model of graviton-dusty universe, Class.
Quantum Grav. 19, 1351 (2002).
- J.Q. Shen: Gravitational analogues, geometric
effects and gravitomagnetic charge,Gen. Rel. Grav.
34, 1423 (2002).
- M.A. Ivanov: Possible manifestations of the
graviton background, Gen. Rel. Grav. 33,: 479
(2001).
- R. Foot, R. R. Volkas: A mirror world explanation
for the Pioneer spacecraft anomalies?, Phys.Lett. B
517, 13 (2001).
- E. Schmutzer: Distribution of Dark Matter around
a Central Body, Pioneer Effect and Fifth Force, Astronom.
Nachr. 322, 93 (2001).
- Dag Østvang: An Explanation of the "Pioneer
Effect" based on Quasi-Metric Relativity, Class.Quant.Grav.
19, 4131 (2002).
- G. Modanese: Effect of a scale-dependent cosmological
term on the motion of small test particles in a Schwarzschild
background, Nucl.Phys. B 556, 397 (1999).
Proposals for new missions
- J.D. Anderson, M.M. Nieto, M.M. and S.G. Turyshev:
A Mission to test the Pioneer Anomaly, Int. J. Mod. Phys.
D 11, 1545 (2002).
- J.L. Rosales: The Pioneer anomalous acceleration:
a measurement of the cosmological constant at the scale of
the solar system, gr-qc/0307042.
- O.,Bertolami
and M. Tajmar: Gravity Control and Possible Influence on Space
Propulsion: A Scientific Study, ESA CR(P)4365.Lett.
A 315, 199 (2003).
- O.
Bertolami and M. Tajmar: Hypothetical Gravity Control and
Implications for Spacecraft Propulsion,
gr-qc/0207123
Some pictures from Bremen
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ZARM
with Drop tower
(146 m)
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City Hall
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Market
square with "Roland"
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residential area
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downtown
Bremen
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The Bremen flag.
This flag has its origin
in the middle ages. The red and white stripes symbolize
the liberty of the citizens of Bremen. It is told that
the American flag is modeled on this flag.
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areal
view
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Bremen town musicians
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Windmill in downtown
Bremen
Typical
countryside architecture
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Some more information on Bremen
can be found on http://en.wikipedia.org/wiki/Bremen
Welcome
to Bremen!
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