Occultation of a solar active region at 1.5 GHz during the eclipse of November 3, 1994
Indian Institute of Astrophysics, Bangalore, 560 034, India e-mail: firstname.lastname@example.org
2 Instituto Nacional de Pesquisas Espaciais, 515, 12201-970, San Jose Dos Campos, SP, Brazil
Accepted: 30 August 2005
We observed the solar eclipse of November 3, 1994 with a 4-m diameter antenna and a radio spectrograph operating at GHz with a time resolution of 100 ms. Here we present the observations of the occultation of the solar active region AR 7798 by the lunar limb. From the derivative of the eclipse curve, we found a source with an angular size of 12 s of arc associated with this active region.
Key words: Sun: radio radiation / Sun: activity / sunspots / Sun: chromosphere
© ESO, 2006