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Full Version: Iapetus albedo dichotomy mystery solved?
Unmanned Spaceflight.com > Outer Solar System > Saturn > Cassini Huygens > Cassini's ongoing mission and raw images
john_s
The papers by Tilmann Denk and I on understanding the albedo dichotomy of Iapetus are now published online in Science, and there are associated releases here:

Cassini site

Southwest Research Institute site

Edit: Graphic describing the model here

Maybe we've finally got this figured out...

John
Shaka
smile.gif Neat as a pin!
ngunn
QUOTE (john_s @ Dec 10 2009, 07:13 PM) *
Maybe we've finally got this figured out...


As I recall you had it pretty much figured out before the 2007 flyby. smile.gif

Juramike
Very nice! Thanks for posting it and the link to the model!
ugordan
QUOTE (ngunn @ Dec 10 2009, 09:39 PM) *
As I recall you had it pretty much figured out before the 2007 flyby. smile.gif

Yep, and seeing that model output (also posted here way back when) pretty much nails the case as far as I'm concerned.
john_s
QUOTE (ngunn @ Dec 10 2009, 08:39 PM) *
As I recall you had it pretty much figured out before the 2007 flyby. smile.gif


Yes, it just took us till now to get it written up and published, though we've added some refinements, so the model has changed a bit. smile.gif

Here's the link to the actual articles in Science Express.

Note that we're using the global Iapetus map from UMSF's own Steve Albers for comparison to the model: there's no official Cassini map that shows the albedo pattern quite so well.

John
hendric
Great job John! I'll wait for the official Science magazine release to hit my mailbox, as I can't stand reading research articles online.

So, being good scientists, I imagine you will now propose an experiment to confirm the results. My guess would be to launch a 10km beach-ball in orbit around Saturn and watch how it changes colors over the eons. smile.gif
ngunn
QUOTE (john_s @ Dec 10 2009, 08:51 PM) *
Here's[/url] the link


Not freely available, unfortunately, to 99.999999% of humanity. I think it's time to 'phone a friend'.
tedstryk
QUOTE (ngunn @ Dec 10 2009, 11:13 PM) *
Not freely available, unfortunately, to 99.999999% of humanity. I think it's time to 'phone a friend'.

The supplements are free.
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