Topological Analysis of High-Resolution CMB Maps
| dc.creator | Wandelt, Benjamin D. | |
| dc.creator | Hivon, Eric | |
| dc.creator | Gorski, Kris M. | |
| dc.date | 1998-03-27 | |
| dc.date | 1998-03-30 | |
| dc.date.accessioned | 2026-07-07T02:26:29Z | |
| dc.date.available | 2026-07-07T02:26:29Z | |
| dc.description | We report the development of numerical tools for the topological analysis of sub--degree resolution, all--sky maps. Software to be released in the HEALFAST (V0.9) package defines neighbour relationships for the HEALPIX tessellation of the sphere. We apply this routine to a fast extrema search which scales strictly linearly in the number of pixels, $N_{p}$. We also present a highly efficient algorithm for simulating the gradient vector and curvature tensor fields ``on--the--fly'' with the temperature map, needing only of order $N_{p} \log_2 N_{p}$ more operations. | |
| dc.description | Typo corrected. 4 pages, 3 figures. To appear in "Fundamental Parameters in Cosmology", proceedings of the XXXIIIrd Rencontres de Moriond, Tran Thanh Van (ed.). Also available with full size and full colour figures at http://www.tac.dk/~wandelt/downloads.html | |
| dc.identifier | https://arxiv.org/abs/astro-ph/9803317 | |
| dc.identifier | http://arxiv.org/abs/astro-ph/9803317 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/12289 | |
| dc.subject | Astrophysics | |
| dc.title | Topological Analysis of High-Resolution CMB Maps | |
| dc.type | text |