Microlensing, flattening, ΩB and h: from assumptions, via data to tentative conclusions
Milosevic-Zdjelar, Vesna · Samurovic, Srdjan · Cirkovic, Milan M.
Original · EN
Microlensing observations can be used for determining the shape of the Milky Way's halo. It can be shown that the data are best described with moderately flattened halo, 0.5 < q < 0.6. We discuss, by taking into account this result, the constraints on the baryonic mass-density parameter, ΩB, and their implications on the value of the Hubble constant H₀, i.e. h. Our conclusion is that current data, in order to satisfy BBNS and Galaxy dynamics constraints, strongly suggest that h should take values within the lower part of the permissible range, h 0.5.
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