/sci/ - Science & Math

[Anonymous No.3974920]

We've found another system that has a planet in the habitability zone, it's a wonderful system around a G2 yellow dwarf, it has 4 gas giants (one of which has very large rings) and 4 rocky planets. One of them has been detected to have flowing oceans of water and is in the perfect distance from it's star. Organic compounds have have been detected but after years of sending direct neutrino band signals (even tried the less advanced muon ray signal) with no responses. It is most likely a barren plant world like the others, we will continue the search...

[Anonymous No.3974935]

shit nigger we can barely even detect neutrinos yet give us a fucking break

also

>aliens speaking english

[Anonymous No.3974940]

How do we detect planets exactly? We watch the star go from blue to red as it obits around the planet, right?

[Anonymous No.3974956]

>>3974940

it's not a doppler shift. we basically see if the star gets dimmer for a little bit, then gets brighter again as the planet crosses the star.

http://en.wikipedia.org/wiki/Astronomical_interferometer

[Anonymous No.3974977]

>plants
>aliens

learn to phylogeny

[Anonymous No.3974984]

>>3974956
what if the planet doesn't pass between us and the star?

[pascal !n5Z3VuZapw No.3974998]

>>3974984
Fairly rare. Because the something dosc effect, almost everything orbits on the same plane in the same direction.

[Anonymous No.3975003]

>>3974984

then you very carefully notice how much it moves over a period of a couple months or so. the star will shift slightly and you can calculate the gravitational pull on the star by its planets, and then calculate the mass and orbit of the planet around the star.

[Anonymous No.3975026]

>>3974920
Pretty good OP.

[Anonymous No.3975033]

>>3974920
I'm gonna shoot myself, cause OP is annoying.

[Anonymous No.3975043]

>muons ray signal

[Anonymous No.3975044]

it's just as well. It'd be a major diplomatic incident when it turns out the aliens idea of a hug is to wrap you in tentacles coated in digestive enzymes and irradiate you.

[Anonymous No.3975054]

>>3975043

[Anonymous No.3975064]

>mfw i realized OP was talking about our solar system

[Anonymous No.3975069]

>>3975054
except we cannot send muons

[Anonymous No.3975094]

>>3975069
aspie much?

[Anonymous No.3975111]

>>3974956
doppler shift is used to measure orbital wobble. detecting planetary transits (which is what you're talking about) didn't really become possible until this past decade

[Anonymous No.3975119]

>>3975069

>"we"

[Anonymous No.3975322]

>>3975064
>mfw I read your comment and finnaly realized that the op was talking about our solar system

[Anonymous No.3975694]

>>3975322

>mfw I just realized it

[Anonymous No.3975718]

>>3974920
We have a whole bunch of neutrino telescopes. If this was happening, we would detect it by now. Also, neutrinos probably do not go faster than the speed of light.

And everyone knows that technology follows an a trend of increasing frequency from radio waves, to infrared, to visible light(as is being proposed for future wifi), to uv, to xrays, eventually we should use gamma rays to communicate.

Gamma rays offer the ultimate in information dense communication. Oh wait, guess I just explained fermi-paradox and gamma ray bursts all in one! Gamma ray bursts are simply transmissions to earth from incredibly advanced aliens saying hi to us.

[Anonymous No.3975974]

>>3975718

holy shit

[Anonymous No.3976006]

>>3975974
>>3975718
get out.

[Anonymous No.3976106]

>>3976006

Is that angry simian guy again? who left him off the leash.

[Anonymous No.3976178]

>>3974998
this just isn't true

>>3974956

interferometers have nothing to do with transits. and he was right radial doppler method is the most successful method of exoplanet discovery.

>>3975718
why would we move to higher frequency's, radio us used because its easy to transmit and receive the same cant be said of gamma or even visible.
and we can only detect the most energetic neutrinos and very few of them, im not giving weight to the idea they are used as communication, anyone who knows how they are produced knows it isn't practical.

[Lunatic !!h/HxpkvWDAR No.3976220]

>>3976178
So we transmit more information faster. While we currently use radiowaves to transmit information over long distances, we could use a modulated laser beam to transmit data at a much higher rate(pic related). The higher the frequency of light, the faster you can transfer information.

Advanced civilizations are likely to have a need to transmit large amounts of information at very high data rate, thus advanced civilizations will likely eventually develop technology to utilize gamma rays for communication.

[Anonymous No.3976222]

>>3976178

>practical


Nothing in science is realistically "practical".

[Anonymous No.3976255]

>>3976220
so they would go to the trouble of setting off the most violent event in the known universe to transmit information? why would the transmissions be over huge regions of the spectrum.. there are lots of reasons GRB's are likely not communication's.

and the bit rate of data is not limited by wavelength but by equipment, by using broad band lasers incredibly short pulses can be made, making nuclear experiments possible with table sized lasers. any advance civilisation could realise this.
you don't have to go to higher frequency to get higher bit rate.

[Lunatic !!h/HxpkvWDAR No.3976463]

>>3976255
>>so they would go to the trouble of setting off the most violent event in the known universe to transmit information
you don't necessarily need a supernova to transmit information in the gamma ray spectrum.

One possibility is that integrated circuits made of exotic matter, like monopolonium(a hypothetical substance made of magnetic monopolonium), could be used to generate and receive frequency modulated gamma-rays.

http://www.frc.ri.cmu.edu/~hpm/project.archive/general.articles/1981/monpol.mss

Why are they over huge regions of the spectrum? Because your listener may only be listening at one frequency.

Though I'm basically just joking here.