CTB 80 en bajas frecuencias

CASTELLETTI G., DUBNER G.; GOLAP K., GOSS W .M.

La Plata, Buenos Aires, Argentina, 16 al 19 de septiembre

Congreso; 46a Reunión Anual de la Asociación Argentina de Astronomía; 2003

CTB 80 is a supernova remnant (SNR) which shows, in radio wavelengths, a complex morphology composed by three arms or extended regions and a central nebula formed by winds from the pulsar PSR B1951+32 physically associated with the remnant. New observations of the SNR CTB 80 have been carried out using the Giant Metrewave Radio Telescope (GMRT, Pune-India) at 240 MHz (beam ~ 20´´) and 618 MHz (beam ~ 8´´), and at 324 MHz (beam ~ 65´´) and 1380 MHz (beam ~ 80´´) using the Very Large Array (VLA, USA). These radio-images show with unprecedented detail new structures in the nebula powered by the pulsar. Likewise, the high dynamic range attained in the images allows us identify faint structures in the extended regions which closely match the optical and infrared emission.