MASOUD
.
خانه ←
ROTATION CURVE
v vs r
Kepler
Rubin
DETECTOR
XENON-nT
1.4 km underground
EVENTS
0
last 24h
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NFW PROFILE
ρ vs r
ρ(r)
=
ρ
0
(
r
/
r
s
)
· ( 1 +
r
/
r
s
)
2
DENSITY
ρ(r)
MODIFIED NEWTONIAN DYNAMICS
What if there is
no dark matter
?
NEWTON
Curve falls — needs dark matter
MOND
Curve stays flat — no dark matter
01
Newton's gravity
g
N
= GM / r
2
02
MOND modification (low acceleration)
g = √( a
0
· g
N
)
03
Orbital speed
v
2
= r · g = √( a
0
· GM )
∴
Result
v = constant — flat curve, no dark matter
ROTATION CURVE
v vs r
Kepler (Newton)
MOND Prediction
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