Microvariability in the optical polarization of 3C279

 

Autores
Andruchow, Ileana; Cellone, Sergio Aldo; Romero, Gustavo Esteban; Dominici, Tania P.; Abraham, Zulema
Tipo de recurso
artículo
Estado
Versión publicada
Año de publicación
2003
País
Argentina
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
Repositorio
CONICET Digital (CONICET)
Descripción
We present results of a microvariability polarization study in the violently variable quasar 3C279. We have resolved the polarization curves in the V band for this object down to timescales of minutes. We found two main components in the evolution of the degree of linear polarization, one consisting of a flicker with timescales of several tens of minutes and other component with far more significant variations on timescales of a few days. The linear polarization descended from ~17% down to ~8% in three nights. The polarization angle underwent a sudden change of more that 10 degrees in a few hours, perhaps indicating the injection of a new shock in the jet. The amplitude of the intranight flickering in the degree of polarization is at the level of ~1%. These are probably the best sampled polarization data ever obtained for this object. We also performed IR observations and we provide a follow-up of the evolution of this source at such energies after the main polarization outburst.
Idioma
inglés
OAI Identifier
oai:ri.conicet.gov.ar:11336/31519
Enlace del recurso
http://hdl.handle.net/11336/31519
Nivel de acceso
Acceso abierto
Materia
Active galaxies
3C 279 (galaxia)
Polarization
Photometry
Astronomía
Ciencias Físicas
CIENCIAS NATURALES Y EXACTAS