future of astronomy
DESCRIPTION
Future of Astronomy. Astronomy 315 Professor Lee Carkner Lecture 25. Yerkes Observatory 1897. The Future of Astronomy. What would we like to understand better? Formation of initial galaxies Properties and numbers of extrasolar planets Formation and evolution of black holes. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/1.jpg)
Future of Astronomy
Astronomy 315Professor Lee
CarknerLecture 25
![Page 2: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/2.jpg)
Yerkes Observatory
1897
![Page 3: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/3.jpg)
The Future of Astronomy
What would we like to understand better? Formation of initial galaxies
Properties and numbers of extrasolar planets
Formation and evolution of black holes
![Page 4: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/4.jpg)
![Page 5: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/5.jpg)
![Page 6: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/6.jpg)
![Page 7: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/7.jpg)
![Page 8: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/8.jpg)
![Page 9: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/9.jpg)
![Page 10: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/10.jpg)
![Page 11: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/11.jpg)
Problems and Solutions
We want to study fainter objects
We want better detail
We want to study a broad range of astrophysical phenomena Use multiwavelength telescopes
![Page 12: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/12.jpg)
Key Initiatives
While much science is done with small and common instruments, there are several large and expensive new projects that we hope will lead to big breakthroughs
Three of these are: A Giant Segmented Mirror Telescope
![Page 13: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/13.jpg)
![Page 14: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/14.jpg)
![Page 15: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/15.jpg)
Webb Space Telescope
See earliest galaxies
View protoplanetary disks View planets
To be launched in June 2014 Cost: 4.5 billion dollars
![Page 16: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/16.jpg)
Webb Format
Want to be both high performance and “cheap”
Telescope needs to be cool and so is deployed away from Earth with a large sun shield
To get large mirror to fit in small launch
vehicle, mirror folds up
![Page 17: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/17.jpg)
![Page 18: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/18.jpg)
![Page 19: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/19.jpg)
![Page 20: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/20.jpg)
![Page 21: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/21.jpg)
International X-ray Observatory
Joint venture of NASA, ESA, and JAXA
Would have collecting area ~10 times larger than current X-ray telescopes
Would be able to get high resolution X-ray spectra of: Black hole accretion disks Hot interstellar X-ray gas
Launch: 2020?
![Page 22: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/22.jpg)
![Page 23: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/23.jpg)
Telescope Properties The light gathering power of a telescope depends on its
areaArea = r2
The resolution of a telescope depends on its diameter (d) and the wavelength () of light observed
R = (1.22 ) / d Determines how close two objects can be and still be resolved
(smaller R is better)
![Page 24: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/24.jpg)
Future Ground Based Telescopes
Larger size means spectroscopy and imaging of fainter objects
Extremely Large Telescopes
![Page 25: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/25.jpg)
Current Plans
California universities are building the Thirty Meter Telescope (TMT)
The ESO has plans for the European Extremely Large Telescope (E-ELT) of 42 meters
Each will cost about 1 billion dollars
![Page 26: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/26.jpg)
![Page 27: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/27.jpg)
![Page 28: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/28.jpg)
![Page 29: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/29.jpg)
Extremely Large Telescopes
Success of large telescopes depends on adaptive optics
ELT’s would complement space telescopes For follow up observations that require greater
sensitivity
![Page 30: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/30.jpg)
HobbyEberly
Telescope1997
![Page 31: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/31.jpg)
Telescope Trends
21st century astronomy versus 20th century astronomy: Information technology integral
![Page 32: Future of Astronomy](https://reader035.vdocuments.us/reader035/viewer/2022070417/5681539e550346895dc1a33a/html5/thumbnails/32.jpg)
Next Time
Meet in planetarium No homework or downloads