Microlensing, flattening, $Ω_B$ and $h$: from assumptions, via data to tentative conclusions

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dc.creatorMilosevic-Zdjelar, Vesna
dc.creatorSamurovic, Srdjan
dc.creatorCirkovic, Milan M.
dc.date1999-09-14
dc.date.accessioned2026-07-07T02:33:16Z
dc.date.available2026-07-07T02:33:16Z
dc.descriptionMicrolensing 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, $Ω_B$, and their implications on the value of the Hubble constant $H_0$, 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, $h\sim 0.5$.
dc.description2 pages, 1 figure, uses PASP conference proceedings style, poster contribution to "Gravitational Lensing: Recent Progress and Future Goals", Boston University, July 1999, eds. T.G. Brainerd and C.S. Kochanek
dc.identifierhttps://arxiv.org/abs/astro-ph/9909240
dc.identifierhttp://arxiv.org/abs/astro-ph/9909240
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/14774
dc.subjectAstrophysics
dc.titleMicrolensing, flattening, $Ω_B$ and $h$: from assumptions, via data to tentative conclusions
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