Recent content by Adb82

I searched some more info about triple systems with 2 stars and a BH. The issues here should be the following: Planet must be far enough from the black hole ( > Roche Limit ?) Harmful radiations from black hole's accretion disk (but we can assume no accretion disk, or a tidally locked planet...

Your interpretation is absolutly correct, but between not using my mother lengauge and needing a specific vocabulary, sometimes i feel like I am not able to comunicate exactly what i would like to say lol. I am sorry this bring everyone to make a double work having first to understand exactly...

Anyway, there is still one possible scenario if i understand it well, and its rapresented by a companion sun in a binary system with the BH and the planet orbiting around both of them. In this case the black hole shouldn't be a supermassive BH isn't it? But not being a supermassive BH the...

yep, but if we change the orbit for get a "better" spectrum, than the planet going to freeze, so no chance for what i was trying to build.

There is nothing that can shield eventually the planet changing the spectrum to a less catastrophic one? :headbang: Im not sure what I am saying have totally sense, but if i understand well the ultraviolet problem, it happen because the blushift caused from the BH to the CMB it shift too...

Yea, its just that i don't get what kind of life can be expected to be found there. Not Earthlike, but can't anyway be any kind of "complex" life form, as the evolution can't take place with ulraviolet light, so it have to be something so small that i suppose it can't neither be percepted by...

Yes that's what i was meaning with "relativistic", thanks for the clarification. About ultraviolet light, yea i understood it, what i mean is: we are talking again only about maybe some micro life organism but nothing else? And there isn't any event that can theoretically solve this problem...

I tryed to search more about CMB and blueshift radiations. I got again something interesting i suppose, but i damn myself because its full of maths that i can't even try to understand at the moment: https://arxiv.org/pdf/2001.10991.pdf This seem exactly what PeterDonis tryed to explain me as...

So we have to assume accretion disk is only a very unlikely possibility but we can't say it's for sure impossible to use it for heat and light? About the tidal forces i understand now what you mean when i readed the exemple of juppiter and saturn moon, i knew about it, i just didnt know it...

Ok, so theoretically is it possible to have intelligent creatures on a planet orbiting around a black hole even without sun. But so, as we can't use the accretion disk for heat and light, as we are assuming no sun, we have also to assume no light and no heat? Or the Tidal forces driving...

I didnt know about it, but are we talking about intelligent creatures? or micro life forms? Light/heat from the accretion disk was the first thing i though about, but you guys said me few post above that it will be kinda impossible to get enough heat and light without be grilled by...

On the link i sended i readed this part: "Life on Earth is possible thanks to the hot Sun and the cold sky. Their temperature difference makes it possible to drive processes far from thermodynamic equilibrium by increasing the entropy elsewhere in the Universe. Absorbing photons from the Sun at...

This should mean that its absolutly impossible that any intelligent being can experience relativistic effects from a planet, because any orbit it will take without a star will not give the needed energy (or worst it will be too much energy) and any star with this orbitating planet should be too...

Well, about the acredition disk: i was assuming it could be the one resource of energy and warm without a star, but if the distance can't be optimal for have a kinda warm and not sterylized planet than it simply won't work in this way and my assumption is wrong. So is it possible to have a...

Hello everyone, im new in the forum and this is actually my first post. I am not an expert of astrophysics but for sure a very curious person that hope to can get more knowledge about astronomy and physics in the next future. Its been kinda long time I am searching an answer to some questions...