Fitting the Galaxy Rotation Curves: Strings versus NFW profile

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dc.creatorCheung, Yeuk-Kwan E.
dc.creatorXu, Feng
dc.date2008-10-14
dc.date.accessioned2026-07-07T10:09:53Z
dc.date.available2026-07-07T10:09:53Z
dc.descriptionRemarkable fit of galaxy rotation curves is achieved using a simple model from string theory. The rotation curves of the same group of galaxies are also fit using dark matter model with the generalized Navarro-Frenk-White profile for comparison. String model utilizes three free parameters vs five in the dark matter model. The average chi-squared of the string model fit is 1.649 while that of the dark matter model is 1.513. The generalized NFW profile fits marginally better at a price of two more free parameters.
dc.identifierhttps://arxiv.org/abs/0810.2382
dc.identifierhttp://arxiv.org/abs/0810.2382
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/171463
dc.subjectHigh Energy Physics - Theory
dc.titleFitting the Galaxy Rotation Curves: Strings versus NFW profile
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