Strong Lensing Constraints on Small-Scale Linear Power

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dc.creatorDalal, Neal
dc.creatorKochanek, Christopher S.
dc.date2002-02-15
dc.date2002-02-16
dc.date.accessioned2026-07-07T02:02:49Z
dc.date.available2026-07-07T02:02:49Z
dc.descriptionWe place limits on the linear power spectrum on small scales (k > 50 h/Mpc) using measurements of substructure in gravitational lens galaxies. We find excellent agreement with the simplest LambdaCDM models, and in conjunction with other cosmological probes, place constraints on the neutrino mass m_nu, tilt of the primordial power spectrum n, and mass of the dark matter particle m. We find n>0.94, and for a Harrison-Zeldovich spectrum, find m_nu<0.74 eV and m>5.2 keV, at 95% confidence.
dc.descriptionrevtex4, 3 pages, 2 figures, submitted to PRL
dc.identifierhttps://arxiv.org/abs/astro-ph/0202290
dc.identifierhttp://arxiv.org/abs/astro-ph/0202290
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/4175
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleStrong Lensing Constraints on Small-Scale Linear Power
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