1. Terahertz frequency: A newaddition to electromagneticspectrum.Prof .V.KrishnakumarProfessor and HeadDepartment of physicsPeriyar UniversitySalem, India. 2. Aim of the…

Slide 1 Slide 2 Stellar Temperatures Wien’s law works perfectly for objects with Planck spectra. Stars don’t quite have Planck-like spectra. UV Blue Green Red Infrared…

The Sun Our Star 0 Please press “1” to test your transmitter. General Properties Average star Central temperature = 15 million 0K 333,000 times Earth’s mass 109 times…

Final review Feedback Processes in one system influences processes in another interconnected system by exchange of matter and energy. Positive Feedback: Change in one system…

Stellar Temperatures Wienâs law works perfectly for objects with Planck spectra. Stars donât quite have Planck-like spectra. UV Blue Green Red Infrared Int 10,000k `blackbodyâ…

The Sun Our Star 0 Please press “1” to test your transmitter. General Properties Average star Central temperature = 15 million 0K 333,000 times Earth’s mass 109 times…

Kennicutt (1992) Galaxies are shown in order of increasing Hubble type from top to bottom. Continuum: sharp break and rise after H and K lines (hence brighter in red than…