G0.570‐0.018: A Young Supernova Remnant? INTEGRAL and VLA Observations

 

Autores
Renaud, M.; Paron, Sergio Ariel; Terrier, R.; Lebrun, F.; Dubner, Gloria Mabel; Giacani, Elsa Beatriz; Bykov, A. M.
Tipo de recurso
artículo
Estado
Versión publicada
Año de publicación
2006
País
Argentina
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio
CONICET Digital (CONICET)
Descripción
We report INTEGRAL IBIS γ-ray and VLA radio observations of G0.570-0.018, a diffuse X-ray source recently discovered by ASCA and Chandra in the Galactic center region. Based on its spectrum and morphology, G0.570-0.018 has been proposed to be a very young supernova remnant. In this scenario, the presence of γ-ray lines coming from the short-lived radioactive nucleus 44Ti and synchrotron radio continuum emission are expected. The first could provide information on nucleosynthesis environments in the interior of exploding stars, and the latter could probe the interaction between the supernova blast wave and the circumstellar/interstellar matter. We have not detected 44Ti lines or any conspicuous radio feature associated with this source down to the achieved sensitivities. From the derived upper limits we set constraints on the nature of G0.570-0.018.
Idioma
inglés
OAI Identifier
oai:ri.conicet.gov.ar:11336/42264
Enlace del recurso
http://hdl.handle.net/11336/42264
Nivel de acceso
Acceso abierto
Materia
supernova remnant
Astronomía
Ciencias Físicas
CIENCIAS NATURALES Y EXACTAS