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Old December 11th 18, 09:04 PM posted to sci.astro.research
Phillip Helbig (undress to reply)[_2_]
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Posts: 273
Default dark matter hypothesis

[[Mod. note -- My apologies for the delay in processing this article,
which was submitted on 2018-12-08.
-- jt]]

In article , Steve Willner
writes:

In article ,
jacobnavia writes:
IF the halo is spherical THEN the study is right.

If the halo is NOT spherical but follows the plane of the milky way,
i.e. most dead stars are in the galaxy plane and WITHIN the galaxy, tha=

t
study proves nothing.


Aren't there also microlensing studies towards the Galactic bulge?


Yes, including some by the MACHO collaboration.

Now, most stars that go supernovae have non-symmetrical explosions that
could propel their "dead" corpses in random directions, but the galaxy'=

s
gravity should hold most of them back and keep them within the galaxy
plane.


How would motion perpendicular to the plane be damped out?


I think he is saying that while supernovae might cause stellar remnants
to move in any direction, the gravity of the galaxy would cause them to
concentrate in the plane. (I'm just explaining what I think the
original poster meant.)