A Pan-STARRS1 Search for Planet Nine
2024/01/31 by Michael E. Brown, Matthew J. Holman, Brown, Michael E. +3 · 5 voices · 2 citations
#astro-ph.EP
paper · pdf · doi:10.48550/arxiv.2401.17977
Abstract
We present a search for Planet Nine using the second data release of the Pan-STARRS1survey. We rule out the existence of a Planet Nine with the characteristics of that predicted in Brown & Batygin (2021) to a 50% completion depth of V=21.5. This survey, along with previous analyses of the Zwicky Transient Facility (ZTF) and Dark EnergySurvey (DES) data, rules out 78% of the Brown & Batygin parameter space. Much of the remaining parameter space is at V>21 in regions near and in the area where the northern galactic plane crosses the ecliptic.
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Discussions
- And we finished! And the paper is now out arxiv.org/pdf/2401.179... And... we didn't find P9. Why not? Well, there is still about 22% left in our search area that we weren't able to cover with these t [bsky, 16 points, 3 comments]
- Astronomers have essentially ruled out 78% of the Planet Nine parameter space with the Pan-STARRS1 survey data.
There isn’t enough space for Planet Nine to hide 🪐
arxiv.org/abs/2401.179... [bsky, 4 points, 0 comments]
- This study arxiv.org/pdf/2401.179... used optical data from the Pan-STARRS survey en.wikipedia.org/wiki/Pan-STA..., taking into account data from the Zwicky Transient Facility en.wikipedia.org/wiki/Zw [bsky, 2 points, 1 comments]
- Oh look - @plutokiller.com and two friends identified a large expanse of (parameter) space where Planet Nine... isn't. 😉 Which makes the search through the rest all the more worthwile. [bsky, 2 points, 0 comments]
- Astronomers have narrowed the search for Planet Nine to 20% of the regions where it is most likely to exist. And they have estimated its size to be 6.6 Earth masses.
doi.org/10.48550/arX... [bsky, 0 points, 0 comments]
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