The OC Starring: M11 and NGC 6819 Jared Rosen, Becca Gallery, and Molly Zimmerman.
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Transcript of The OC Starring: M11 and NGC 6819 Jared Rosen, Becca Gallery, and Molly Zimmerman.
![Page 1: The OC Starring: M11 and NGC 6819 Jared Rosen, Becca Gallery, and Molly Zimmerman.](https://reader036.fdocuments.in/reader036/viewer/2022062309/5697c0301a28abf838cda796/html5/thumbnails/1.jpg)
The OCStarring:
M11 and NGC 6819
Jared Rosen, Becca Gallery, and Molly Zimmerman
![Page 2: The OC Starring: M11 and NGC 6819 Jared Rosen, Becca Gallery, and Molly Zimmerman.](https://reader036.fdocuments.in/reader036/viewer/2022062309/5697c0301a28abf838cda796/html5/thumbnails/2.jpg)
• Young and large stars
• Few thousand per cluster
• Not as compact as globular clusters
• More massive stars so shorter lifetimes!
• All born from the same molecular cloud
• Stars all about same age and distance
Open Clusters
NASA/ESA/AURA/Caltech.
![Page 3: The OC Starring: M11 and NGC 6819 Jared Rosen, Becca Gallery, and Molly Zimmerman.](https://reader036.fdocuments.in/reader036/viewer/2022062309/5697c0301a28abf838cda796/html5/thumbnails/3.jpg)
Color and Temperature
![Page 4: The OC Starring: M11 and NGC 6819 Jared Rosen, Becca Gallery, and Molly Zimmerman.](https://reader036.fdocuments.in/reader036/viewer/2022062309/5697c0301a28abf838cda796/html5/thumbnails/4.jpg)
![Page 5: The OC Starring: M11 and NGC 6819 Jared Rosen, Becca Gallery, and Molly Zimmerman.](https://reader036.fdocuments.in/reader036/viewer/2022062309/5697c0301a28abf838cda796/html5/thumbnails/5.jpg)
Stellar Evolution
• Star formation
• Main sequence
• Red giants
![Page 6: The OC Starring: M11 and NGC 6819 Jared Rosen, Becca Gallery, and Molly Zimmerman.](https://reader036.fdocuments.in/reader036/viewer/2022062309/5697c0301a28abf838cda796/html5/thumbnails/6.jpg)
Star Formation
![Page 7: The OC Starring: M11 and NGC 6819 Jared Rosen, Becca Gallery, and Molly Zimmerman.](https://reader036.fdocuments.in/reader036/viewer/2022062309/5697c0301a28abf838cda796/html5/thumbnails/7.jpg)
Main Sequence
Hot cold
Bright
• Where stars spend most of lifetime
• Hydrogen burning
•Our sun is on the main sequence
• Massive stars have shorter lifetimes
• Massive stars are bright and hot
dim
![Page 8: The OC Starring: M11 and NGC 6819 Jared Rosen, Becca Gallery, and Molly Zimmerman.](https://reader036.fdocuments.in/reader036/viewer/2022062309/5697c0301a28abf838cda796/html5/thumbnails/8.jpg)
Red giant
No fusion but gravitational contraction
![Page 9: The OC Starring: M11 and NGC 6819 Jared Rosen, Becca Gallery, and Molly Zimmerman.](https://reader036.fdocuments.in/reader036/viewer/2022062309/5697c0301a28abf838cda796/html5/thumbnails/9.jpg)
Red Giants!
•Burning hydrogen shell
•Evolved past main sequence
•No hydrogen burning in core
•Size expands and star brightens but temperature decreases
![Page 10: The OC Starring: M11 and NGC 6819 Jared Rosen, Becca Gallery, and Molly Zimmerman.](https://reader036.fdocuments.in/reader036/viewer/2022062309/5697c0301a28abf838cda796/html5/thumbnails/10.jpg)
Taking Pictures
• Late night conference with Ellie (telescope operator)
• M11 and NGC 6819
• Exposure times
• Filters/ RGB images
![Page 11: The OC Starring: M11 and NGC 6819 Jared Rosen, Becca Gallery, and Molly Zimmerman.](https://reader036.fdocuments.in/reader036/viewer/2022062309/5697c0301a28abf838cda796/html5/thumbnails/11.jpg)
RGB Images
+ +
=
![Page 12: The OC Starring: M11 and NGC 6819 Jared Rosen, Becca Gallery, and Molly Zimmerman.](https://reader036.fdocuments.in/reader036/viewer/2022062309/5697c0301a28abf838cda796/html5/thumbnails/12.jpg)
![Page 13: The OC Starring: M11 and NGC 6819 Jared Rosen, Becca Gallery, and Molly Zimmerman.](https://reader036.fdocuments.in/reader036/viewer/2022062309/5697c0301a28abf838cda796/html5/thumbnails/13.jpg)
= Color
ma
gn
itude
redblue
Main sequence
Red Giant Branch
![Page 14: The OC Starring: M11 and NGC 6819 Jared Rosen, Becca Gallery, and Molly Zimmerman.](https://reader036.fdocuments.in/reader036/viewer/2022062309/5697c0301a28abf838cda796/html5/thumbnails/14.jpg)
= Colorblue red
ma
gn
itude
Main sequence
Red Giant Branch
Red clump
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![Page 16: The OC Starring: M11 and NGC 6819 Jared Rosen, Becca Gallery, and Molly Zimmerman.](https://reader036.fdocuments.in/reader036/viewer/2022062309/5697c0301a28abf838cda796/html5/thumbnails/16.jpg)
NGC 6819 vs. M11 NGC 6819 = 3 billion years old m11= 200 million years old
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![Page 18: The OC Starring: M11 and NGC 6819 Jared Rosen, Becca Gallery, and Molly Zimmerman.](https://reader036.fdocuments.in/reader036/viewer/2022062309/5697c0301a28abf838cda796/html5/thumbnails/18.jpg)
Distances
• M11 = 2600 parsecs or 8700 light years
• NGC 6819 = 1400 parsecs or 4500 light years
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Galaxy Model
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Conclusion
• Using CMDs and Isochrones we were able to figure out our ages, brightnesses, and distances of our open clusters
• M11 = 8700 light years and 200 million years old
• NGC 6819 = 4500 light years and 3 billion years old
![Page 21: The OC Starring: M11 and NGC 6819 Jared Rosen, Becca Gallery, and Molly Zimmerman.](https://reader036.fdocuments.in/reader036/viewer/2022062309/5697c0301a28abf838cda796/html5/thumbnails/21.jpg)
Thank you!!!• Andrea Michels• Chris Martell• Ellie Gates• Greg O’Bryan• Globs: Catherine
and Amanda• Hilary O’Bryan• Jason Porter
•Jay Strader•John Martin•Kathy Cooksey•Kirsten Howley•Laura Chomiuk•Monica Piñon•Malika Moutawakkil-Bell
COSMOS