Author | dc.contributor.author | Guzmán, A. E. | |
Author | dc.contributor.author | May Humeres, Jorge | es_CL |
Author | dc.contributor.author | Álvarez Moreno, Héctor Julio | es_CL |
Author | dc.contributor.author | Maeda, K. | es_CL |
Admission date | dc.date.accessioned | 2011-11-14T14:14:38Z | |
Available date | dc.date.available | 2011-11-14T14:14:38Z | |
Publication date | dc.date.issued | 2011-01 | |
Cita de ítem | dc.identifier.citation | ASTRONOMY & ASTROPHYSICS Volume: 525 Article Number: A138 Published: JAN 2011 | es_CL |
Identifier | dc.identifier.issn | 0004-6361 | |
Identifier | dc.identifier.other | DOI: 10.1051/0004-6361/200913628 | |
Identifier | dc.identifier.uri | https://repositorio.uchile.cl/handle/2250/125514 | |
General note | dc.description | Artículo de publicación ISI | es_CL |
Abstract | dc.description.abstract | Aims. We study the Galactic large-scale synchrotron emission by generating a reliable all-sky spectral index map and temperature map at 45 MHz.
Methods. We use our observations, the published all-sky map at 408 MHz, and a bibliographical compilation to produce a map corrected for zero-level offset and extragalactic contribution.
Results. We present full sky maps of the Galactic emission at 45 MHz and the Galactic spectral index between 45 and 408 MHz with an angular resolution of 5 degrees. The spectral index varies between 2.1 and 2.7, reaching values below 2.5 at low latitude because of thermal free-free absorption and its maximum in the zone next to the Northern Spur. | es_CL |
Patrocinador | dc.description.sponsorship | Centro de Astrofisica FONDAP 15010003
Center of Excellence in Astrophysics and Associated Technologies PFB 06 | es_CL |
Lenguage | dc.language.iso | en | es_CL |
Publisher | dc.publisher | EDP SCIENCES | es_CL |
Keywords | dc.subject | Galaxy: structure | es_CL |
Título | dc.title | All-sky Galactic radiation at 45 MHz and spectral index between 45 and 408 MHz | es_CL |
Document type | dc.type | Artículo de revista | |