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For each of the following questions on optical spectra and spectroscopy, please provide answers no longer...

Question

For each of the following questions on optical spectra and spectroscopy, please provide answers no longer...

For each of the following questions on optical spectra and spectroscopy, please provide answers no longer than 3 lines. (a) (2 marks) Describe how emission lines can be used as a diagnostic for gas temperature. (b) (2 marks) Describe how a continuum spectrum can be used as a temperature diagnostic (c) (2 marks) If a continuum spectrum peaks at 100 ?m wavelength, what is the approximate temperature of the source? An order of magnitude answer will suffice. (d) (2 marks) The intergalactic medium within galaxy clusters has a temperature of ~ 107 K but we dont see the Balmer series emission lines being produce by the cluster intergalactic medium Why is this the case?
For each of the following questions on optical spectra and spectroscopy, please provide answers no longer than 3 lines. (a) (2 marks) Describe how emission lines can be used as a diagnostic for gas temperature. (b) (2 marks) Describe how a continuum spectrum can be used as a temperature diagnostic (c) (2 marks) If a continuum spectrum peaks at 100 ?m wavelength, what is the approximate temperature of the source? An order of magnitude answer will suffice. (d) (2 marks) The intergalactic medium within galaxy clusters has a temperature of ~ 107 K but we don't see the Balmer series emission lines being produce by the cluster intergalactic medium Why is this the case?

Answers

a) we Lowes we Can get Tempuatue estimata (C 2. 811xto 2-89 X163 28.9 K at veng higん.teammatue black body. Shects.un handm mo


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