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Oumuamua a hydrogen ice body?

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#1 russell23

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Posted 02 June 2020 - 06:53 PM

Interesting analysis:

 

https://arxiv.org/abs/2005.12932

 

 



#2 RalphMeisterTigerMan

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Posted 02 June 2020 - 07:25 PM

How do you pronounce "Oumaumau". For the longest time I thought it was like that "Beach-boys" song "a-papa-oomau-mau a-papa-ooma-mau". What do you think?

 

I believe it's a Hawaiian name. So, please let me know how to say the name, thanks.

 

Clear skies!

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#3 epee

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Posted 03 June 2020 - 07:53 AM

"Oh-ooo-mayoo-mayoo" I think



#4 llanitedave

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Posted 03 June 2020 - 10:55 AM

Interesting analysis:

 

https://arxiv.org/abs/2005.12932

Would that imply it was never orbiting a star at all?



#5 russell23

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Posted 03 June 2020 - 11:03 AM

Would that imply it was never orbiting a star at all?

According to the article there could be many of these bodies that formed deep inside the low temperature cores of giant molecular clouds.  So I think that is right.  These would not be planet formation products.  They would be ablated by the high temperatures of a protoplanetary disk.


Edited by russell23, 03 June 2020 - 11:03 AM.


#6 FloridaFocus

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Posted 03 June 2020 - 01:41 PM

How do you pronounce "Oumaumau". For the longest time I thought it was like that "Beach-boys" song "a-papa-oomau-mau a-papa-ooma-mau". What do you think?

 

I believe it's a Hawaiian name. So, please let me know how to say the name, thanks.

 

Clear skies!

RalphMeisterTigerMan

I can't speak to the pronunciation (I've always pronounced it as ooo-mua-mua), but yes, it's Hawaiian. It essentially means "scout", or even "first scout" ahead of an exploration party.

 

I checked the wiki page since it's been a while since I last investigated the etymology, and apparently the name "Rama" was initially under consideration. That would've been too cool! Such a great book from my youth. Always hoped for a movie version!!



#7 llanitedave

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Posted 03 June 2020 - 03:56 PM

According to the article there could be many of these bodies that formed deep inside the low temperature cores of giant molecular clouds.  So I think that is right.  These would not be planet formation products.  They would be ablated by the high temperatures of a protoplanetary disk.

Yeah, I don't know if I ever considered the study of solid hydrogen bodies as its own branch of research.  There's got to be some gems in there -- for example, these might be the seeds that the cores of stars later grow around...

 

But even if it's predominantly solid hydrogen, if it came from the core of a GMC, there should be enough icy impurities, I would think, for outgassing products to be detectable.



#8 Mister T

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Posted 04 June 2020 - 06:46 AM

How do you pronounce "Oumaumau". For the longest time I thought it was like that "Beach-boys" song "a-papa-oomau-mau a-papa-ooma-mau". What do you think?

 

I believe it's a Hawaiian name. So, please let me know how to say the name, thanks.

 

Clear skies!

RalphMeisterTigerMan

When Oumaumau passed, I was in touch with the alien pilots inside.

(you would not understand how even if I explained it)

They explained that that the correct pronunciation is "Bob"


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#9 DSOGabe

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Posted 18 June 2020 - 05:08 PM

First thing that came to mind when it was announced was the starship in Jack McDevitt's novel "Chindi"




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