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Astrophysics, Gravitation and Cosmology Seminar - "The Cosmic History of Light"

Event Type
Seminar/Symposium
Sponsor
Department of Physics
Location
464 Loomis Lab
Date
Dec 4, 2019   12:00 pm  
Speaker
Marco Ajello, Clemson University
Contact
Betsy Greifenkamp
E-Mail
greifenk@illinois.edu
Views
66
Originating Calendar
Physics - Astrophysics, Gravitation, and Cosmology Seminar

The diffuse cosmic background at ultraviolet, optical, and infrared wavelengths is produced by the emission of all stars across the history of the Universe. Its knowledge would thus inform us about stellar activity, galaxy evolution, dust extinction and the expansion rate of the Universe. In this talk I will report on an unprecedented measurement of this background using NASA’s Fermi mission and how it has allowed us to measure the history of light in the Universe and the expansion rate of the Universe at recent times.

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