Motion of a test body in the presence of an external scalar field which respects the weak equivalence principle

It is shown that the main contribution to the rotational curve of a spiral galaxy may be due essentially to the interaction, in the general relativistic spacetime, of the galactic matter with a very light long range scalar field which respects the weak equivalence principle. The comparison of the theoretical results with 23 spiral galaxy rotation curves shows a good agreement between our proposal and observations.

talk: Les Houches 1997/09/29
galaxy: rotation
field theory: scalar
equivalence principle
potential
approximation: weak field
numerical calculations: interpretation of experiments

References(29)

Figures(0)

A Modification of the Newtonian dynamics as a possible alternative to the hidden mass hypothesis

M. Milgrom
(
- Weizmann Inst.
)

- Astrophys.J. 270 (1983) 365-370
•
DOI:
- 10.1086/161130

More on modified dynamics

Mordehai Milgrom

- Nature 362 (1993) 25
•
DOI:
- 10.1038/362025a0

- Astrophys.J. 286 3

A Modification of the Newtonian dynamics: Implications for galaxies

M. Milgrom
(
- Weizmann Inst. and
- Princeton, Inst. Advanced Study
)

- Astrophys.J. 270 (1983) 371-383
•
DOI:
- 10.1086/161131

- Astrophys.J. 333 689

The published extended rotation curves of spiral galaxies: confrontation with modified dynamics

R.H. Sanders

- Astrophys.J. 473 (1996) 117
•
e-Print:
- astro-ph/9606089
•
DOI:
- 10.1086/178131

A modification of the Newtonian dynamics: implications for galaxy systems

M. Milgrom
(
- Weizmann Inst. and
- Princeton, Inst. Advanced Study
)

- Astrophys.J. 270 (1983) 384-389
•
DOI:
- 10.1086/161132

- Astron.Astrophys. 284 L31

Test of Newton's Second Law at Small Accelerations

A. Abramovici
(
- Weizmann Inst.
)
,
Z. Vager
(
- Weizmann Inst.
)

- Phys.Rev.D 34 (1986) 3240-3241,
- Phys. Rev. D34 ( 1986) 3240-3241
•
DOI:
- 10.1103/PhysRevD.34.3240

- Astron.Astrophys. 262 395

- Astron.Astrophys. 273 L9

Exact Vacuum Solution to Conformal Weyl Gravity and Galactic Rotation Curves

- Astrophys.J. 342 (1989) 635-638
•
DOI:
- 10.1086/167623

Are galactic rotation curves really flat?

Philip D. Mannheim
(
- Connecticut U.
)

- Astrophys.J. 479 (1997) 659
•
e-Print:
- astro-ph/9605085
•
DOI:
- 10.1086/303933

- Astrophys.J. 449 47

- Astron.Astrophys. 154 135

Can conformal Weyl gravity be considered a viable cosmological theory?

D. Elizondo
(
- Madrid, Autonoma U.
)
,
G. Yepes
(
- Madrid, Autonoma U.
)

- Astrophys.J. 428 (1994) 17-20,
- Astrophys. J. 428 (1994) 17-20. and Madrid Auton. U. - FTUAM-93-020 (93,rec.Jan.94) 7 p
•
e-Print:
- astro-ph/9312064
•
DOI:
- 10.1086/174214

- Astrophys.J. 313 1

- Astrophys.J. 397 L71

- Astrophys.J. 99 547

- Astron.J. 100 648

- Astron.J. 95 37

Neutral hydrogen distributions and kinematics of giant low surface brightness disk galaxies

- Astron.J. 114 (1997) 1858
•
DOI:
- 10.1086/118611

Rotation velocities of 16 SA galaxies and a comparison of Sa, Sb, and SC rotation properties

V.C. Rubin
(
)
,
D. Burstein
(
- Arizona State U. and
- Arizona U., Astron. Dept. - Steward Observ.
)
,
W.K. Ford, Jr.
(
- Carnegie Inst., Wash., D.C. and
- Kitt Peak Observ. and
- Lowell Observ. and
- Carnegie Inst. Observ.
)
,
N. Thonnard
(
- Carnegie Inst., Wash., D.C.
)

- Astrophys.J. 289 (1985) 81
•
DOI:
- 10.1086/162866

- Astron.J. 100 641

Rotational properties of 21 SC galaxies with a large range of luminosities and radii, from NGC 4605 /R = 4kpc/ to UGC 2885 /R = 122 kpc/

- Astrophys.J. 238 (1980) 471
•
DOI:
- 10.1086/158003

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