{"about":{"site":"https://codewithpapers.app","non_affiliation":"Code with Papers and Syntology are not affiliated with, endorsed by, or sponsored by Papers with Code, Meta, or the pwc-archive mirror.","licence":"CC BY-SA 4.0","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","attribution":"https://codewithpapers.app/attribution","modified":"archive material modified by Syntology; see the attribution page"},"url":"/paper/a-model-of-diffuse-galactic-radio-emission","title":"A model of diffuse Galactic Radio Emission from 10 MHz to 100 GHz","arxiv_id":"0802.1525","date":"2008-02-12","proceeding":null,"authors":["Angelica de Oliveira-Costa","Max Tegmark","B. M. Gaensler","Justin Jonas","T. L. Landecker","Patricia Reich"],"abstract":"Understanding diffuse Galactic radio emission is interesting both in its own\nright and for minimizing foreground contamination of cosmological measurements.\nCosmic Microwave Background experiments have focused on frequencies > 10 GHz,\nwhereas 21 cm tomography of the high redshift universe will mainly focus on <\n0.2 GHz, for which less is currently known about Galactic emission. Motivated\nby this, we present a global sky model derived from all publicly available\ntotal power large-area radio surveys, digitized with optical character\nrecognition when necessary and compiled into a uniform format, as well as the\nnew Villa Elisa data extending the 1.4 GHz map to the entire sky. We quantify\nstatistical and systematic uncertainties in these surveys by comparing them\nwith various global multi-frequency model fits. We find that a principal\ncomponent based model with only three components can fit the 11 most accurate\ndata sets (at 10, 22, 45 & 408 MHz and 1.4, 2.3, 23, 33, 41, 61, 94 GHz) to an\naccuracy around 1%-10% depending on frequency and sky region. Both our data\ncompilation and our software returning a predicted all-sky map at any frequency\nfrom 10 MHz to 100 GHz are publicly available at\nhttp://space.mit.edu/home/angelica/gsm .","url_abs":"http://arxiv.org/abs/0802.1525v3","url_pdf":"http://arxiv.org/pdf/0802.1525v3.pdf","source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28","licence_url":"https://creativecommons.org/licenses/by-sa/4.0/legalcode","row_kind":"abstracts"},"code_links":[{"paper_slug":"a-model-of-diffuse-galactic-radio-emission","repo_url":"https://github.com/kernsuite-debian/pygsm","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"none","reach":null},{"paper_slug":"a-model-of-diffuse-galactic-radio-emission","repo_url":"https://github.com/telegraphic/PyGSM","is_official":0,"mentioned_in_paper":0,"mentioned_in_github":1,"framework":"none","reach":null}],"tasks":[{"task_slug":"optical-character-recognition","task_name":"Optical Character Recognition"},{"task_slug":"optical-character-recognition","task_name":"Optical Character Recognition (OCR)"}],"methods":[],"datasets_introduced":[],"methods_introduced":[],"results":[],"syntology":{"atlas_url":null,"mcp":null,"developers":"https://syntology.ai/developers"},"arxiv_metadata":null,"syntology_extracted_results":null}