The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for...
Transcript of The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for...
![Page 1: The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for New Worlds Tiago Campante University of Birmingham campante@bison.ph.bham.ac.uk](https://reader033.fdocuments.in/reader033/viewer/2022042909/5f3b79500593172279193320/html5/thumbnails/1.jpg)
The Music of the Stars and the Search
for New Worlds
Tiago Campante
University of Birmingham [email protected]
![Page 2: The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for New Worlds Tiago Campante University of Birmingham campante@bison.ph.bham.ac.uk](https://reader033.fdocuments.in/reader033/viewer/2022042909/5f3b79500593172279193320/html5/thumbnails/2.jpg)
The resonant Sun The Sun resonates like a musical instrument!
![Page 3: The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for New Worlds Tiago Campante University of Birmingham campante@bison.ph.bham.ac.uk](https://reader033.fdocuments.in/reader033/viewer/2022042909/5f3b79500593172279193320/html5/thumbnails/3.jpg)
helioseismology, n. The study of the Sun's interior by the observation and analysis of oscillations at its surface. Cf. asteroseismology [Oxford English Dictionary]
![Page 4: The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for New Worlds Tiago Campante University of Birmingham campante@bison.ph.bham.ac.uk](https://reader033.fdocuments.in/reader033/viewer/2022042909/5f3b79500593172279193320/html5/thumbnails/4.jpg)
Birmingham Solar-Oscillations Network (BiSON)
http://bison.ph.bham.ac.uk/
![Page 5: The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for New Worlds Tiago Campante University of Birmingham campante@bison.ph.bham.ac.uk](https://reader033.fdocuments.in/reader033/viewer/2022042909/5f3b79500593172279193320/html5/thumbnails/5.jpg)
“Sun quakes” O
scill
atio
n ve
loci
ty (m
/s)
Time (hours UTC)
![Page 6: The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for New Worlds Tiago Campante University of Birmingham campante@bison.ph.bham.ac.uk](https://reader033.fdocuments.in/reader033/viewer/2022042909/5f3b79500593172279193320/html5/thumbnails/6.jpg)
Frequency spectrum
Overtones of an instrument
![Page 7: The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for New Worlds Tiago Campante University of Birmingham campante@bison.ph.bham.ac.uk](https://reader033.fdocuments.in/reader033/viewer/2022042909/5f3b79500593172279193320/html5/thumbnails/7.jpg)
Frequency (µHz)
Stre
ngth
Music of the stars: Sun
Frequency spectrum of the Sun
![Page 8: The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for New Worlds Tiago Campante University of Birmingham campante@bison.ph.bham.ac.uk](https://reader033.fdocuments.in/reader033/viewer/2022042909/5f3b79500593172279193320/html5/thumbnails/8.jpg)
What have we learned from helioseismology?
![Page 9: The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for New Worlds Tiago Campante University of Birmingham campante@bison.ph.bham.ac.uk](https://reader033.fdocuments.in/reader033/viewer/2022042909/5f3b79500593172279193320/html5/thumbnails/9.jpg)
asteroseismology, n. The study of the interior of stars by the observation and analysis of oscillations at their surface. Cf. helioseismology [Oxford English Dictionary]
![Page 10: The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for New Worlds Tiago Campante University of Birmingham campante@bison.ph.bham.ac.uk](https://reader033.fdocuments.in/reader033/viewer/2022042909/5f3b79500593172279193320/html5/thumbnails/10.jpg)
http://keplerscience.arc.nasa.gov/
![Page 11: The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for New Worlds Tiago Campante University of Birmingham campante@bison.ph.bham.ac.uk](https://reader033.fdocuments.in/reader033/viewer/2022042909/5f3b79500593172279193320/html5/thumbnails/11.jpg)
Kepler field-of-view
![Page 12: The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for New Worlds Tiago Campante University of Birmingham campante@bison.ph.bham.ac.uk](https://reader033.fdocuments.in/reader033/viewer/2022042909/5f3b79500593172279193320/html5/thumbnails/12.jpg)
Frequency (µHz)
Stre
ngth
Music of the stars: Sun
Frequency spectrum
![Page 13: The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for New Worlds Tiago Campante University of Birmingham campante@bison.ph.bham.ac.uk](https://reader033.fdocuments.in/reader033/viewer/2022042909/5f3b79500593172279193320/html5/thumbnails/13.jpg)
Frequency (µHz)
Stre
ngth
Music of the stars: dwarf star
Frequency spectrum
![Page 14: The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for New Worlds Tiago Campante University of Birmingham campante@bison.ph.bham.ac.uk](https://reader033.fdocuments.in/reader033/viewer/2022042909/5f3b79500593172279193320/html5/thumbnails/14.jpg)
Frequency (µHz)
Stre
ngth
Music of the stars: subgiant star
Frequency spectrum
![Page 15: The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for New Worlds Tiago Campante University of Birmingham campante@bison.ph.bham.ac.uk](https://reader033.fdocuments.in/reader033/viewer/2022042909/5f3b79500593172279193320/html5/thumbnails/15.jpg)
Kepler sequence of solar-mass stars
Increasing size, age
teenager…
young adult…
prime of life…
starting to fill out…
bus pass ordered…
“Sun in time”
![Page 16: The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for New Worlds Tiago Campante University of Birmingham campante@bison.ph.bham.ac.uk](https://reader033.fdocuments.in/reader033/viewer/2022042909/5f3b79500593172279193320/html5/thumbnails/16.jpg)
Detection of extrasolar planets The transit method
![Page 17: The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for New Worlds Tiago Campante University of Birmingham campante@bison.ph.bham.ac.uk](https://reader033.fdocuments.in/reader033/viewer/2022042909/5f3b79500593172279193320/html5/thumbnails/17.jpg)
![Page 18: The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for New Worlds Tiago Campante University of Birmingham campante@bison.ph.bham.ac.uk](https://reader033.fdocuments.in/reader033/viewer/2022042909/5f3b79500593172279193320/html5/thumbnails/18.jpg)
![Page 19: The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for New Worlds Tiago Campante University of Birmingham campante@bison.ph.bham.ac.uk](https://reader033.fdocuments.in/reader033/viewer/2022042909/5f3b79500593172279193320/html5/thumbnails/19.jpg)
Campante et al., 2015, ApJ, 799, 170
11.2 billion years old!
Kepler-444
![Page 20: The Music of the Stars and the Search for New Worlds · The Music of the Stars and the Search for New Worlds Tiago Campante University of Birmingham campante@bison.ph.bham.ac.uk](https://reader033.fdocuments.in/reader033/viewer/2022042909/5f3b79500593172279193320/html5/thumbnails/20.jpg)
http://tess.gsfc.nasa.gov/