Light – Some of the things a few photons can tell us about the universe

Speaker: Mr James Fradgley MInstP

 What is a photon?  How are photons produced?  Doppler Effect- red shift.  Spectral broadening from temperature.  Cosmological red shift.  Estimating the density of a cloud. Comparing line strengths of closely related meta-stable lines.  Estimating the temperature of a cloud.  The Lyman Alpha Forest.  When the universe became neutral and then became re-ionised.  Cosmic microwave background (CMB) radiation.

IOP South Central Branch supports Bournemouth Natural Science Society, IOP Members can join the talk via zoom for free.

Please register to receive the zoom link details.