1. 2 3 Spectra of different kinds of celestial objects Makemake.
-
date post
19-Dec-2015 -
Category
Documents
-
view
218 -
download
4
Transcript of 1. 2 3 Spectra of different kinds of celestial objects Makemake.
![Page 1: 1. 2 3 Spectra of different kinds of celestial objects Makemake.](https://reader030.fdocuments.us/reader030/viewer/2022032800/56649d365503460f94a0dd6c/html5/thumbnails/1.jpg)
1
QuickTime™ and a decompressor
are needed to see this picture.
![Page 2: 1. 2 3 Spectra of different kinds of celestial objects Makemake.](https://reader030.fdocuments.us/reader030/viewer/2022032800/56649d365503460f94a0dd6c/html5/thumbnails/2.jpg)
2
QuickTime™ and a decompressor
are needed to see this picture.
QuickTime™ and a decompressor
are needed to see this picture.
![Page 3: 1. 2 3 Spectra of different kinds of celestial objects Makemake.](https://reader030.fdocuments.us/reader030/viewer/2022032800/56649d365503460f94a0dd6c/html5/thumbnails/3.jpg)
3
Spectra of different kinds of celestial objectsSpectra of different kinds of celestial objects
QuickTime™ and a decompressor
are needed to see this picture.
QuickTime™ and a decompressor
are needed to see this picture.
QuickTime™ and a decompressor
are needed to see this picture.
Makemake
![Page 4: 1. 2 3 Spectra of different kinds of celestial objects Makemake.](https://reader030.fdocuments.us/reader030/viewer/2022032800/56649d365503460f94a0dd6c/html5/thumbnails/4.jpg)
4
10/17/11 10/17/11 SpectroscopySpectroscopy
Stellar Classification UsingStellar Classification UsingStrength of Absorption LinesStrength of Absorption Lines
![Page 5: 1. 2 3 Spectra of different kinds of celestial objects Makemake.](https://reader030.fdocuments.us/reader030/viewer/2022032800/56649d365503460f94a0dd6c/html5/thumbnails/5.jpg)
5
Spectra in sections looked different because emission tubes Spectra in sections looked different because emission tubes contained different elements. Stars have them all.contained different elements. Stars have them all.
BUT, in general, stars to within a fraction of a percentage, all have similar abundances of the elements!
AA bubu ndnd aa nn cc ee ss ii nn thth ee SS unun Element Abundance (% of total) number of atoms Hydrogen 91.2 (71% by mass) Helium 8.7 (27% by mass) Oxygen 0.078 Carbon 0.043 Iron 0.030 Sulfur 0.015 Nitrogen 0.0088 Silicon 0.0045 Magnesium 0.0038 Neon 0.0035
![Page 6: 1. 2 3 Spectra of different kinds of celestial objects Makemake.](https://reader030.fdocuments.us/reader030/viewer/2022032800/56649d365503460f94a0dd6c/html5/thumbnails/6.jpg)
6
Classification overview: TextbookClassification overview: Textbook
![Page 7: 1. 2 3 Spectra of different kinds of celestial objects Makemake.](https://reader030.fdocuments.us/reader030/viewer/2022032800/56649d365503460f94a0dd6c/html5/thumbnails/7.jpg)
7
QuickTime™ and a decompressor
are needed to see this picture.
Understanding atomsUnderstanding atoms
QuickTime™ and a decompressor
are needed to see this picture.
QuickTime™ and a decompressor
are needed to see this picture.
QuickTime™ and a decompressor
are needed to see this picture.
He Na
Ca
Fe
QuickTime™ and a decompressor
are needed to see this picture.
![Page 8: 1. 2 3 Spectra of different kinds of celestial objects Makemake.](https://reader030.fdocuments.us/reader030/viewer/2022032800/56649d365503460f94a0dd6c/html5/thumbnails/8.jpg)
8
QuickTime™ and a decompressor
are needed to see this picture.
![Page 9: 1. 2 3 Spectra of different kinds of celestial objects Makemake.](https://reader030.fdocuments.us/reader030/viewer/2022032800/56649d365503460f94a0dd6c/html5/thumbnails/9.jpg)
9
Understanding the guidesUnderstanding the guides
![Page 10: 1. 2 3 Spectra of different kinds of celestial objects Makemake.](https://reader030.fdocuments.us/reader030/viewer/2022032800/56649d365503460f94a0dd6c/html5/thumbnails/10.jpg)
10
Qualitative determination of line strengthQualitative determination of line strength
![Page 11: 1. 2 3 Spectra of different kinds of celestial objects Makemake.](https://reader030.fdocuments.us/reader030/viewer/2022032800/56649d365503460f94a0dd6c/html5/thumbnails/11.jpg)
11
QuickTime™ and a decompressor
are needed to see this picture.
![Page 12: 1. 2 3 Spectra of different kinds of celestial objects Makemake.](https://reader030.fdocuments.us/reader030/viewer/2022032800/56649d365503460f94a0dd6c/html5/thumbnails/12.jpg)
12
QuickTime™ and a decompressor
are needed to see this picture.
![Page 13: 1. 2 3 Spectra of different kinds of celestial objects Makemake.](https://reader030.fdocuments.us/reader030/viewer/2022032800/56649d365503460f94a0dd6c/html5/thumbnails/13.jpg)
13
QuickTime™ and a decompressor
are needed to see this picture.
Identifying 3 lines + assigning element and line strengthIdentifying 3 lines + assigning element and line strength
QuickTime™ and a decompressor
are needed to see this picture.
41 Cygni data in ExcelGoogle Spreadsheet (see instruction on a handout)
389.1 H8
430.3 “G” band540.7 He II
![Page 14: 1. 2 3 Spectra of different kinds of celestial objects Makemake.](https://reader030.fdocuments.us/reader030/viewer/2022032800/56649d365503460f94a0dd6c/html5/thumbnails/14.jpg)
14
Calculating a line strengthCalculating a line strength
QuickTime™ and a decompressor
are needed to see this picture.
€
Line strength =1−flux line bottom
flux continuum
![Page 15: 1. 2 3 Spectra of different kinds of celestial objects Makemake.](https://reader030.fdocuments.us/reader030/viewer/2022032800/56649d365503460f94a0dd6c/html5/thumbnails/15.jpg)
15
Measuring the strength of 3 linesMeasuring the strength of 3 lines
QuickTime™ and a decompressor
are needed to see this picture.
€
1 − 0.450.73 = 0.38
€
1 − 0.670.84 = 0.20
![Page 16: 1. 2 3 Spectra of different kinds of celestial objects Makemake.](https://reader030.fdocuments.us/reader030/viewer/2022032800/56649d365503460f94a0dd6c/html5/thumbnails/16.jpg)
16
QuickTime™ and a decompressor
are needed to see this picture.
![Page 17: 1. 2 3 Spectra of different kinds of celestial objects Makemake.](https://reader030.fdocuments.us/reader030/viewer/2022032800/56649d365503460f94a0dd6c/html5/thumbnails/17.jpg)
17
Determining Spectral Type and Surface TemperatureDetermining Spectral Type and Surface Temperature
QuickTime™ and a decompressor
are needed to see this picture.
0.38
0.20F7 6300