dc.creator | Testori, Juan Carlos | |
dc.creator | Reich, Patricia | |
dc.creator | Reich, Wolfgang | |
dc.date.accessioned | 2017-12-05T16:50:15Z | |
dc.date.available | 2017-12-05T16:50:15Z | |
dc.date.created | 2017-12-05T16:50:15Z | |
dc.date.issued | 2004-12 | |
dc.identifier | Testori, Juan Carlos; Reich, Patricia; Reich, Wolfgang; Spectral index variations of galactic emission; Copernicus GmbH, Katlenburg-Lindau; Proceedings of the Magnetized Interstellar Medium; 1; 12-2004; 63-68 | |
dc.identifier | http://hdl.handle.net/11336/29732 | |
dc.identifier | CONICET Digital | |
dc.identifier | CONICET | |
dc.description.abstract | We have used all-sky maps at 45 MHz, 408 MHz, 1420 MHz and 22.8 GHz to calculate the distribution of spectral indices across the sky. This requires an adjustment of the adopted zero-levels of the different surveys, which was performed by temperature-versus-temperature (TT) plots. While at high frequencies a spectral steepening with increasing Galactic latitude is seen in the same way as it is observed in nearby galaxies seen edge-on, the spectral index distribution is more complex at lower frequencies. In general there is an agreement with the cooling-convection halo models by Lerche & Schlickeiser (1982), but also local magnetic field variations and variations of the cosmic-ray electron energy spectrum may explain the distribution of low-frequency spectral indices. | |
dc.language | eng | |
dc.publisher | Copernicus GmbH, Katlenburg-Lindau | |
dc.relation | info:eu-repo/semantics/altIdentifier/url/http://adsabs.harvard.edu/abs/2004mim..proc...63R | |
dc.relation | info:eu-repo/semantics/altIdentifier/url/http://articles.adsabs.harvard.edu/full/2004mim..proc...63R | |
dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | |
dc.rights | info:eu-repo/semantics/restrictedAccess | |
dc.subject | Galactic Emission | |
dc.subject | Spectral Index | |
dc.subject | Surveys | |
dc.title | Spectral index variations of galactic emission | |
dc.type | info:eu-repo/semantics/article | |
dc.type | info:ar-repo/semantics/artículo | |
dc.type | info:eu-repo/semantics/publishedVersion | |