Waterworld -> T Dwarf -> Blackhole, is that a thing?

GunnerBill · Jul 30, 2017

Another thread postulates the prospect of life around a White Dwarf.

In my extensive survey of Black-holes whilst I traipse to the Peng Nebula I came across a water world orbiting a Class-T Dwarf itself orbiting a black-hole.

This seems quite unusual. Or is it?

Edit:

Thank you for your patience!

iain666 · Jul 31, 2017

I would say that's pretty unusual. Possibly not utterly unknown prior to your find but definitely not ten-a-penny.

Straha Yeagar · Jul 31, 2017

This isn't exactly what you presented, but pretty close...ELW orbiting a Class L Dwarf, orbiting a black hole.

Aura Lorell · Jul 31, 2017

straha20 said:
This isn't exactly what you presented, but pretty close...ELW orbiting a Class L Dwarf, orbiting a black hole.

http://i.imgur.com/QzVYm7a.png

Given the importance our sun plays in creating a habitable state for our Earth, is the ELW above possible under realistic circumstances or is it a stellar forge hiccup?

phelbore · Jul 31, 2017

Rhea Lorell said:
Given the importance our sun plays in creating a habitable state for our Earth, is the ELW above possible under realistic circumstances or is it a stellar forge hiccup?

You're supposed to ask if the stellar forge is drunk, so we can take a shot!

GunnerBill · Jul 31, 2017

Yes bathed in a pinky purple glow - very pleasant!

marx · Jul 31, 2017

Rhea Lorell said:
Given the importance our sun plays in creating a habitable state for our Earth, is the ELW above possible under realistic circumstances or is it a stellar forge hiccup?

From what I could tell by recreating such configurations, it should be realistic for an Earth-like world to exist in similar configurations - assuming it would be realistic that such planet formation (or capture) there were possible. Also assuming no harsh radiation from other stuff in the system - but then, Elite's criteria for ELWs isn't that there'd necessarily be complex life on the surface, just that the atmosphere would be breathable for humans. They might still need radiation suits though! (Of course, then it's debatable if the atmosphere is breathable.)

That said, there's a bug that was confirmed by FD that the temperature calculations of atmospheric moons are off by quite a margin. See more detailed info here. The tl;dr version is that once said bug is fixed, they'll get hotter, and that might push some ELWs out of their limits and turn them into water worlds. It also might push some water worlds into becoming ELWs - so long as it was only the temperature that didn't match. (And not stuff like ammonia in the atmosphere.) OP's example of a water world orbiting a T dwarf star (that orbits a black hole) is possible, but quite rare.

Aura Lorell · Jul 31, 2017

marx said:
From what I could tell by recreating such configurations, it should be realistic for an Earth-like world to exist in similar configurations - assuming it would be realistic that such planet formation (or capture) there were possible. Also assuming no harsh radiation from other stuff in the system - but then, Elite's criteria for ELWs isn't that there'd necessarily be complex life on the surface, just that the atmosphere would be breathable for humans. They might still need radiation suits though! (Of course, then it's debatable if the atmosphere is breathable.)

That said, there's a bug that was confirmed by FD that the temperature calculations of atmospheric moons are off by quite a margin. See more detailed info here. The tl;dr version is that once said bug is fixed, they'll get hotter, and that might push some ELWs out of their limits and turn them into water worlds. It also might push some water worlds into becoming ELWs - so long as it was only the temperature that didn't match. (And not stuff like ammonia in the atmosphere.) OP's example of a water world orbiting a T dwarf star (that orbits a black hole) is possible, but quite rare.

Okay thanks for that explanation, much appreciated!