Artículo
Preliminary results of a search for radio halos in starburst galaxies
Fecha de publicación:
08/2023
Editorial:
Asociación Argentina de Astronomía
Revista:
Boletín de la Asociación Argentina de Astronomía
ISSN:
0571-3285
e-ISSN:
1669-9521
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Starburst galaxies undergo intense episodes of star formation. In these galaxies, gas is ejected intothe surroundings in the form of strong winds, produced by the combined effect of numerous supernova explosions.When these winds interact with the intergalactic medium, they give rise to strong shocks that are capableof accelerating cosmic rays. The radiation from these rays in radio wavelengths is generated by synchrotronmechanism and can be detected when the galaxies are seen “edge-on” (i.e., its inclination is ∼ 90o with the line ofsight). In this work, we investigate a sub-sample of edge-on galaxies in the MeerKAT 1.28 GHz Atlas of SouthernSources in the IRAS Revised Bright Galaxy Sample. To carry out an analysis of individual galaxies that allows usto find radio emission outside the galactic disk attributable to the presence of the wind, a software was developedand tested, which we detail in this work. We present here the results obtained using this software for a sub-groupof galaxies that have been studied in the past using low-resolution observations, and we compare both results.
Palabras clave:
galaxies: halos
,
galaxies: starburst
,
radio continuum: galaxies
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos(IAR)
Articulos de INST.ARG.DE RADIOASTRONOMIA (I)
Articulos de INST.ARG.DE RADIOASTRONOMIA (I)
Citación
Galante, Camila Ailen; Saponara, Juliana; Romero, Gustavo Esteban; Benaglia, Paula; Preliminary results of a search for radio halos in starburst galaxies; Asociación Argentina de Astronomía; Boletín de la Asociación Argentina de Astronomía; 64; 8-2023; 172-174
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