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Dr. Katherine Volk

๐Ÿ‘ค Speaker
530 total appearances

Appearances Over Time

Podcast Appearances

2017 LPL Evening Lectures
Are There Unseen Planets Lurking in the Kuiper Belt? by Kathryn Volk - November 1, 2017

So this is the current state as of last week.

2017 LPL Evening Lectures
Are There Unseen Planets Lurking in the Kuiper Belt? by Kathryn Volk - November 1, 2017

A few of these objects are relatively new.

2017 LPL Evening Lectures
Are There Unseen Planets Lurking in the Kuiper Belt? by Kathryn Volk - November 1, 2017

And you can see they're not all on one side anymore.

2017 LPL Evening Lectures
Are There Unseen Planets Lurking in the Kuiper Belt? by Kathryn Volk - November 1, 2017

There's some spread out.

2017 LPL Evening Lectures
Are There Unseen Planets Lurking in the Kuiper Belt? by Kathryn Volk - November 1, 2017

And the dynamic story could be complicated.

2017 LPL Evening Lectures
Are There Unseen Planets Lurking in the Kuiper Belt? by Kathryn Volk - November 1, 2017

You could have other things.

2017 LPL Evening Lectures
Are There Unseen Planets Lurking in the Kuiper Belt? by Kathryn Volk - November 1, 2017

You could still have a planet and have this be the outcome.

2017 LPL Evening Lectures
Are There Unseen Planets Lurking in the Kuiper Belt? by Kathryn Volk - November 1, 2017

But it's not quite as strong an effect.

2017 LPL Evening Lectures
Are There Unseen Planets Lurking in the Kuiper Belt? by Kathryn Volk - November 1, 2017

You wouldn't necessarily look at this and say, huh, that needs an explanation.

2017 LPL Evening Lectures
Are There Unseen Planets Lurking in the Kuiper Belt? by Kathryn Volk - November 1, 2017

But it still could be consistent.

2017 LPL Evening Lectures
Are There Unseen Planets Lurking in the Kuiper Belt? by Kathryn Volk - November 1, 2017

Some of these new objects also, so this is

2017 LPL Evening Lectures
Are There Unseen Planets Lurking in the Kuiper Belt? by Kathryn Volk - November 1, 2017

You know, I've plotted them in three dimension orbits and we're just rotating our perspective.

2017 LPL Evening Lectures
Are There Unseen Planets Lurking in the Kuiper Belt? by Kathryn Volk - November 1, 2017

And so this was this initial clustering where they all kind of their orbital planes were also aligned, which would also possibly need an explanation.

2017 LPL Evening Lectures
Are There Unseen Planets Lurking in the Kuiper Belt? by Kathryn Volk - November 1, 2017

But some of the new objects are not quite as aligned.

2017 LPL Evening Lectures
Are There Unseen Planets Lurking in the Kuiper Belt? by Kathryn Volk - November 1, 2017

So the story is a little more complicated than that.

2017 LPL Evening Lectures
Are There Unseen Planets Lurking in the Kuiper Belt? by Kathryn Volk - November 1, 2017

And then of course there is this issue of incompleteness in the data set.

2017 LPL Evening Lectures
Are There Unseen Planets Lurking in the Kuiper Belt? by Kathryn Volk - November 1, 2017

So there are observational biases and in fact the apparent clustering could just be biases.

2017 LPL Evening Lectures
Are There Unseen Planets Lurking in the Kuiper Belt? by Kathryn Volk - November 1, 2017

I'm part of this outer solar system origin survey.

2017 LPL Evening Lectures
Are There Unseen Planets Lurking in the Kuiper Belt? by Kathryn Volk - November 1, 2017

We discovered five of these objects that had similar orbits and we did an analysis because they looked clustered.

2017 LPL Evening Lectures
Are There Unseen Planets Lurking in the Kuiper Belt? by Kathryn Volk - November 1, 2017

But we said, what if they were just randomly distributed?