/sci/ - Science & Math

>>16168522
I don't know if what people think of as black holes exist but there are enormously massive, very compact, very dark objects of some sort.
Before someone says the gif is just the center of gravity and contains no central mass, some of the orbits are waaay too extreme for that.
Something is there.

>>10296076
pics are likely to be in different part of spectrum
we have no line of sight with center
shits too thick

stars orbiting the supermassive black hole at the center of our galaxy

>>5481458
Sagitarius-A* and Cygnus X-1 would like to have a word with you.

>>5400362
>>5400364
yeah, and to think we didn't even know what Sgr A* was before 2001! There are still many things left to discover.

>>4827736
give a better explanation for the 4 million solar mass object at the center of the milky way

Remind the audience that there is a 4 million solar mass black hole at the center of the Milky Way. Use this animation as proof.

maybe this animation will help answer your question

>>3292602

>>3265658
>Any speculation on what the fuck is going on at its center?

You mean aside from the really, really big black hole?

>>3068874

We haven't been following those for hundreds of years. We made up our own new ones and called them "interpretations" because the original rules are barbaric by modern standards. It's a facade and we don't need it.

>>3068882

Black holes are indeed verified. But you don't even need a black hole to have an event horizon you can test for hawking radiation. Check it:

http://www.scientificamerican.com/article.cfm?id=hawking-radiation

>>3068907
>derp

>>2950848

SgrA* will fuck up your shit

http://stephenbrooks.org/misc/blackhole/

>>2380023

It'll show up again once one of these bastards gets a little too close to the nucleus.

>>2131061
>but what if

But what if they turn into unicorns?

Blind speculation just isn't useful.

>>2131081
>does the hawking radiation vary?

The rate of radiation is exponential and inversely proportional to the black hole's mass.

One would have to shrink to less than a million metric tons (this is negligible mass as far as black holes go) before the decay rate becomes so rapid that what's left basically explodes.

>what type of radiation is this?

A virtual particle from a particle/antiparticle pair formed though quantum fluctuation at the event horizon (typically an electron & positron) becomes realized when its sibling quantum tunnels into the event horizon (and is therefore lost forever) before the two can mutually annihilate.

The realized particle may be flung away from the black hole by immense velocity imparted on it, in which case the black hole loses mass in proportion to the particle's mass and kinetic energy.

It seems counterintuitive that the black hole could lose mass after it "ate" a virtual particle, but since the space the particle pair came from cannot fall below the zero point, that energy must come from the black hole. It effectively swallowed a negative quantity of energy.

>its observable?

Tiny artificially induced event horizons (eg: refractive index perturbation) produce Hawking radiation.

>its exergy?

I wouldn't expect to do any meaningful work with it.

>A meteor about 100 km wide but twice as massive as earth

That's way too much mass, too close and in too small a space to create a "fixable" problem.

The moon splatters everywhere, and the Earth is likely wrenched right out of its stable orbit around the sun. That massive fragment will probably fuck up the orbits of Mars and Venus too, just by passing through.

Between tidal forces from the passing fragment and the debris from the moon's destruction, the Earth's surface is effectively destroyed.

>>2049867

We already know that's there.

im not going to cite sources here; do it yourself or take this as fiction
it has been observed that within the sealed water chambers of many nuclear reactors micro biological presences are found even after the full extent of ensuring a sterile environ
some have asserted that the cause of this is a strange phenomenon involving silicondioxide and a previously unrecognized as significant 'wave' that originates from the center of our galaxy
efforts documented by several involved in non public research efforts seem to indicate that the wave has an effect contributing to the formation of complex molecules that are the building blocks of life as we know it
it has been surmised that this 'wave' may be having a different effects at different distances from its source so that 'humanoid beings' might be a phenomnia that occures at a certain distance from the glactic core
also surmised is that the 2012 event will involve a peak in the force of this wave
it is claimed that geological studies reveal this wave to have been occuring with an irregular cycle at times lasting at its peak for as much as 4000 years while at others only for a few years
it is asserted that dna experiences more mutations during the peaks of this wave
furthermore it is supposed that this is the result of the distortions of spacetime as matter enters the blackholes in the center of our galaxy
there are aditional data available in sources involved in the 'project camelot' documentation effort

heres proof that there is something powerful and dark in the center of our galaxy
this is one of several that can be oserved by their effects on the shrounding stars
if one should fall in we might get a blast of enegy from the event no?
the gif shows the year the light hit earth but it left the center of our galaxy and headed our way about 32000 to 34000 years ago
the light from our sun that we see in our sky left its source just over 9 minutes ago

heres proof that there is something powerful and dark in the center of our galaxy
this is one of several that can be oserved by their effects on the shrounding stars
if one should fall in we might get a blast of enegy from the event no?
the gif shows the year the light hit earth but it left the center of our galaxy and headed our way about 32000 to 34000 years ago
the light from our sun that we see in our sky left its source just over 9 minutes ago

>>1862959
hate to say it but this is a fine example of someone having more money than they have sence.
so what did you think you were doing?
making a 2011 Trollgod 6000 magnetcar? O_O
send me the money and you would be amazed at what can be done with it.

>>1804806

For example- How did we test for the existence of a super-massive black hole in the center of our galaxy?

We watched the stars surrounding the apparent center of the galaxy and saw them do this.