The Extragalactic Background Light and how to measure it
by
GONZALEZ MUNOZ Adiv
(IFAE)
→
Europe/Madrid
Seminar (IFAE)
Seminar
IFAE
Description
The extragalactic background light (EBL) is all the electromagnetic radiation in the range from the UV to the far infrared coming from all nuclear and gravitational processes in the universe. The direct measurement of the EBL is a difficult task due to the presence of the zodiacal light (interplanetary dust) and the emission from the Milky Way. The EBL is of extreme relevance to the high energy astronomy since it interacts with high energy gamma rays altering the observed flux from extragalactic sources. Some methods for measuring directly and indirectly the EBL will be presented.