Apr 17, 2014 10:23:43 AM, tml@simplelists.com wrote:
>On Thu, Apr 17, 2014 at 9:41 AM, Tim <tim@little-possums.net> wrote:
>
>>> The creation of a black hole is, I presume, an explosive process.
>>
>> In many cases *very* explosive: a Type II supernova. These usually
>> result in a substantial loss of mass as well as extremely intense
>> radiation, so any surviving planets probably escape the weaker gravity
>> of the black hole (compared with the original star). Some of the
>> matter from the explosion may condense into planets. Most will be
>> ejected from the system at very high speed, but a small fraction won't
>> *quite* have enough energy to escape. Although it won't have much
>> angular momentum, there are processes by which stable (though usually
>> highly elliptical) orbits can result. So such a supernova remnant can
>> have planets. Even old planets, if it exploded long ago.
>>
>>
>
>I've got this mental image, wondered if you could comment on the 'realism' --
>
>Imagine a black hole with a "hot" disk, and a planet with no-rotation
>(tidal lock, like the moon) in a very, very, very, very long ecliptic
>orbit, on the order of 250 years or so.
>The "sun-side" of the planet takes a continued splatter of X-rays,
>which hit sundry elements inside the core and heat it, which then
>cause hot springs on the other side of the planet. Also, portions of
>the atmo fluoresce under the beating, providing pseudo-sunlight, even
>though you're on the dark side.
>
>The planet was the home of a TL6 race at one point, which realized
>what was about to happen, and created deep, deep shelters since they
>had no space flight capability. This did them no real good, but it did
>allow a lot of bacteria, spores, fungus, and some insects to survive.
>
>These critters now populate the hot springs areas. The 'termite'-ish
>bugs burrow deep at the apogee and perigee of the orbit to survive,
>and some of those deep burrows are close enough to the spring that
>water seeps through, keeping lichen and such alive to feed the
>termites.