Stars II Stellar Characteristics: Mass, Temperature, & Size.
The temperature of stars
description
Transcript of The temperature of stars
![Page 1: The temperature of stars](https://reader031.fdocuments.us/reader031/viewer/2022020320/56814792550346895db4c30e/html5/thumbnails/1.jpg)
The temperature of stars
As a guide to their ‘life story’
http://www.le.ac.uk/ph/faulkes/web/stars/r_st_evolution.html
![Page 2: The temperature of stars](https://reader031.fdocuments.us/reader031/viewer/2022020320/56814792550346895db4c30e/html5/thumbnails/2.jpg)
Plot luminosity against temperature…
![Page 3: The temperature of stars](https://reader031.fdocuments.us/reader031/viewer/2022020320/56814792550346895db4c30e/html5/thumbnails/3.jpg)
Hertzsprung-Russell Diagram
![Page 4: The temperature of stars](https://reader031.fdocuments.us/reader031/viewer/2022020320/56814792550346895db4c30e/html5/thumbnails/4.jpg)
Gas cloud to protostar
![Page 5: The temperature of stars](https://reader031.fdocuments.us/reader031/viewer/2022020320/56814792550346895db4c30e/html5/thumbnails/5.jpg)
Main Sequence
Our Sun
![Page 6: The temperature of stars](https://reader031.fdocuments.us/reader031/viewer/2022020320/56814792550346895db4c30e/html5/thumbnails/6.jpg)
Hydrogen runs out, swells to be come red giant
![Page 7: The temperature of stars](https://reader031.fdocuments.us/reader031/viewer/2022020320/56814792550346895db4c30e/html5/thumbnails/7.jpg)
Elements in a red
giant
http://www.astronomycafe.net/qadir/q2958.html
![Page 8: The temperature of stars](https://reader031.fdocuments.us/reader031/viewer/2022020320/56814792550346895db4c30e/html5/thumbnails/8.jpg)
Comparison of sizes
http://www.profiledesigninc.com/OMOS-SO-Matrix-Reach4theStars-HR.html
![Page 9: The temperature of stars](https://reader031.fdocuments.us/reader031/viewer/2022020320/56814792550346895db4c30e/html5/thumbnails/9.jpg)
Outer layers are shed leaving the core
![Page 10: The temperature of stars](https://reader031.fdocuments.us/reader031/viewer/2022020320/56814792550346895db4c30e/html5/thumbnails/10.jpg)
Planetary Nebulae
http://www.astro.washington.edu/users/balick/WFPC2/plneb.jpeg
![Page 11: The temperature of stars](https://reader031.fdocuments.us/reader031/viewer/2022020320/56814792550346895db4c30e/html5/thumbnails/11.jpg)
A cool, dim dwarf star…
![Page 12: The temperature of stars](https://reader031.fdocuments.us/reader031/viewer/2022020320/56814792550346895db4c30e/html5/thumbnails/12.jpg)
Size of a white dwarf
http://www.astro.washington.edu/users/balick/WFPC2/plneb.jpeg
![Page 13: The temperature of stars](https://reader031.fdocuments.us/reader031/viewer/2022020320/56814792550346895db4c30e/html5/thumbnails/13.jpg)
And then….
(Depending on the size….
![Page 14: The temperature of stars](https://reader031.fdocuments.us/reader031/viewer/2022020320/56814792550346895db4c30e/html5/thumbnails/14.jpg)
Supernova
http://mephistope.homelinux.org/docu/0000/img/supernova/
Less than 25 times
bigger than our Sun
![Page 15: The temperature of stars](https://reader031.fdocuments.us/reader031/viewer/2022020320/56814792550346895db4c30e/html5/thumbnails/15.jpg)
..then a neutron star
http://ircamera.as.arizona.edu/NatSci102/NatSci102/images/neu_star.jpg
http://usersguidetotheuniverse.com/wp-content/uploads/2011/04/xray_neutronstar.jpg
![Page 16: The temperature of stars](https://reader031.fdocuments.us/reader031/viewer/2022020320/56814792550346895db4c30e/html5/thumbnails/16.jpg)
Or if more than 25 times bigger then our Sun…
http://keckobservatory.org/images/files/magazine/dec07_1_10.gif
![Page 17: The temperature of stars](https://reader031.fdocuments.us/reader031/viewer/2022020320/56814792550346895db4c30e/html5/thumbnails/17.jpg)