Observing Solar System Objects with JWST
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Transcript of Observing Solar System Objects with JWST
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Observing Solar System Objects with JWST
Dr. Heidi B. HammelAURA (Washington, DC) &
Space Science Institute (Boulder, CO)
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Dr. Heidi B. HammelAURA (Washington, DC) &
Space Science Institute (Boulder, CO)
Observing Solar System Objects with JWST
“objects with z << 1”
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collaborator acknowledgementsDirect collaborators on today’s presentationKyle Uckert (NMSU)Nancy Chanover (NMSU)Dean Hines (STSci)
Webb GTO Solar System TeamJonathan Lunine, Heidi Hammel, George Rieke, Marcia Rieke, George Sonneborn, John Stansberry, Don McCarthy, Chas Beichmann, …
Additional participationGlenn Orton, Will Grundy, Emily Schaller, Mike Brown, …
Heidi Kyle DeanNancy
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Who was James Webb?NASA Administrator
1961 – 1968
Architect of the Apollo Program
Strong supporter of science
Initiated NASA’s space program: 75 space science
missions flew during his tenure
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http://www.stsci.edu/jwst/doc-archive/white-papers/JWST_Solar_System.pdf
JWST white paper by
Lunine et al. (2010)
JWST Planetary Observations within the Solar System
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Mercury?No.
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Venus?No.
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Earth?No.
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Mars?maybe...
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methane outbursts
see lunine et al. (2010) white paper
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asteroids, comets, etc?yes
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comet vs circumstellar disk
see lunine et al. (2010) white paper
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Jupiter?probably only with MIRI MRS/IFU
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Jupiter’s moons?maybe…
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Saturn?probably only with MIRI MRS/IFU
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Saturn’s moon, esp Titan?maybe…
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Titan spectra
see lunine et al. (2010) white paper
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Uranus?Yes!
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Uranus spectra
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Uranus – take it to the limits
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Uranus Longitude-Resolved Spitzer SpectraComparison of 4 longitudes vs. mean of all four reveals variation in hydrocarbons
To what spatial feature does this correspond?
CH4
C2H6
C2H2
S(1) H2 quadrupole
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Uranus in the mid infrared2006 September 3
VLT/VISIR 18.7-μm imageG. Orton and colleagues
O MIRI resolution
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20-year evolution of atmospheric temperatures on Uranus
Comparison with simulated image based on Voyager IRIS T(p,lat.)
2006 September 3, VLT/VISIR 18.7-μm image
Uranus deconvolved Uranus simulation based on Voyager (PIXON) IRIS results, c. 1986
← cold pole ← warm pole
O MIRI resolution
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Uranus with JWST/MIRI
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Uranus with JWST/NIRSPEC
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Neptune?Yes!
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Neptune spectra
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Neptune - too hot to handle
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Neptune’s Stratospheric Emission
CH4 C2H6
Δt =6.83 hrs Δt =2.25 hrs
O MIRI resolution O
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Neptune with JWST/MIRI
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Neptune with JWST/NIRSPEC
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Kuiper Belt Objects?Yes!
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Kuiper Belt Objects
see keith noll’s poster
at this conference for up-to-date presentation
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SummaryWide range of interesting
planetary phenomena observable by JWST,
especially for the outer Solar System
http://www.stsci.edu/jwst/doc-archive/white-papers/JWST_Solar_System.pdf