Finding A Transneptunian Planet in IRAS data, Have we found a candidate? |
Finding A Transneptunian Planet in IRAS data, Have we found a candidate? |
Nov 13 2021, 10:58 PM
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#1
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Member Group: Members Posts: 127 Joined: 15-April 21 Member No.: 9009 |
there is this recent article about finding a possible transneptunian planet candidate
https://arxiv.org/pdf/2111.03831.pdf The candidate discussed here would be likely to have mass 3-5 MEarth if it was in fact a planet and not something else what interests me is how we didn't find it in later surveys of the night sky... |
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Nov 14 2021, 03:05 AM
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#2
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Solar System Cartographer Group: Members Posts: 10227 Joined: 5-April 05 From: Canada Member No.: 227 |
Unfortunately, the most likely explanation for not finding it in later surveys is that this object is an artifact of the image, not a real thing. But I'm sure people will be looking now.
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Nov 14 2021, 08:33 AM
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#3
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Merciless Robot Group: Admin Posts: 8785 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
ADMIN NOTE: Topic title changed, first post edited. Please see rule 1.9. The entire subject of "planethood" remains extremely contentious among many in our community, so we ask that everyone refrain from using incendiary terminology which may aggravate or alienate some members & start useless, acrimonious, and utterly non-productive arguments.
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Nov 14 2021, 04:03 PM
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#4
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Member Group: Members Posts: 127 Joined: 15-April 21 Member No.: 9009 |
its possible it would just be an artifact in the data or a distant IR object
we need to see if the object moves in multiple images (like how we detect new dwarf planets or comets), if it moves, than we are onto something, if it does not, its a distant IR object or something else, and if its nowhere to be found, than its just a hiccup (artifact) in the data |
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Nov 15 2021, 03:22 AM
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#5
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Senior Member Group: Members Posts: 1592 Joined: 14-October 05 From: Vermont Member No.: 530 |
There is an afterword in that paper that had me checking the Brown & Batygin blog here. There are a few 2021 updates that I hadn't seen.
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Nov 15 2021, 12:14 PM
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#6
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Member Group: Members Posts: 127 Joined: 15-April 21 Member No.: 9009 |
There is an afterword in that paper that had me checking the Brown & Batygin blog here. There are a few 2021 updates that I hadn't seen. interesting, scale diagram is nice, that size is a bit more realistic for a planet that may have been thrown out way far by jupiter (this is one of the formation theories), and couldn't grab any more material to grow to the size of the 2 known ice giants |
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