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South Pole Telescope Data Places Better Limit on Neutrino Mass

Unknown Lamer posted more than 2 years ago | from the billions-of-years-in-the-making dept.

Earth 25

An anonymous reader writes an excerpt from a press release by the University of Chicago: "Analysis of data from the 10-meter South Pole Telescope is providing new support for the most widely accepted explanation of dark energy — the source of the mysterious force that is responsible for the accelerating expansion of the universe." The research resulted in three papers involving new constraints on the mass of neutrinos, a measurement of the angular power spectrum of the CMB, and a catalog of newly discovered galaxy clusters. The data lends a bit more support to the cosmological constant theory of dark energy.

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Source of dark energy (2, Funny)

bonch (38532) | more than 2 years ago | (#39551207)

Deeper analysis revealed the dark energy source is a large, repellent mass [imageshack.us] located in our solar system.

Re:Source of dark energy (1, Funny)

game kid (805301) | more than 2 years ago | (#39551571)

It's been developing for quite some time, apparently.

There's brazillions of them (3, Funny)

wcrowe (94389) | more than 2 years ago | (#39551267)

WTF is a "neutronio"?

Re:There's brazillions of them (3, Funny)

Unknown Lamer (78415) | more than 2 years ago | (#39551287)

I find spelling unpossile diffikult sometimes.

Re:There's brazillions of them (2)

Intrepid imaginaut (1970940) | more than 2 years ago | (#39553323)

All of my spelling and grammar are perfect in every way, just things are spelled differently in this dimension. We thought we had the rift closed before those creatures got through, but in fact we just popped out here, and let me tell you that was a surprise. Identical in every detail except spelling and grammar. God only knows whats going on back home, probably everyone is being eaten forever in the simulation spaces of the interlopers' minds, bit of a red face situation alright. Still, we'll get the experiment working properly next time.

Re:There's brazillions of them (0)

Anonymous Coward | more than 2 years ago | (#39551357)

It is a perfectly fine term in scientifc circles. it is a variant of neutrinos and yo can read more about it here http://it.wikipedia.org/wiki/Neutronio

Re:There's brazillions of them (0)

Anonymous Coward | more than 2 years ago | (#39551573)

It's the Italian word for Neutronium, a substance made entirely from neutrinos. Not the same thing.

Re:There's brazillions of them (0)

Anonymous Coward | more than 2 years ago | (#39551765)

It's the Italian word for Neutronium, a substance made entirely from neutrinos. Not the same thing.

Neutronium is a proposed name for a substance composed purely of *neutrons*. Not the same thing.

Re:There's brazillions of them (0)

Anonymous Coward | more than 2 years ago | (#39551601)

Unlike the SI unit, the "metre".
Seriously, please use meters to measure how many metres.

Re:There's brazillions of them (3, Funny)

Anonymous Coward | more than 2 years ago | (#39552101)

It's a press release from the University of Chicago. You should feel lucky it's not measured in rods or links.

Re:There's brazillions of them (1)

buchner.johannes (1139593) | more than 2 years ago | (#39551745)

WTF is a "neutronio"?

It goes in and out of the planet.

Re:There's brazillions of them (1)

tomhath (637240) | more than 2 years ago | (#39555183)

They were discovered by Italian astronauts, who are also known as specimens

Re:There's brazillions of them (1)

axlr8or (889713) | more than 2 years ago | (#39555937)

it sounds like a funky dance move

Neutronio (5, Funny)

GameboyRMH (1153867) | more than 2 years ago | (#39551271)

It's-a me, Neutronio!

Re:Neutronio (0)

Anonymous Coward | more than 2 years ago | (#39551555)

Racist!

"neutronio"? (2)

macraig (621737) | more than 2 years ago | (#39551273)

Is that a new Italian particle?

Jeez, Slashdot... please budget for editors who can proofread, okay?

Ten Meter Pole (-1)

Anonymous Coward | more than 2 years ago | (#39551393)

I bet those fagets only went down there because they heard "ten meter" and "pole". I bet a mysterious force caused expansion inside their faget pants.

faggots bitching about the summary. (-1)

Anonymous Coward | more than 2 years ago | (#39551525)

Potentially the most interesting article, and all I see is a bunch of faggots bitching about the summary.

Did somebody put sand in your vaginas this morning?

Re:faggots bitching about the summary. (3, Funny)

Beelzebud (1361137) | more than 2 years ago | (#39552173)

The rest of them still haven't figured out how to frame this in to an anti-tax rant.

lower limit on neutrino mass? (5, Interesting)

snoop.daub (1093313) | more than 2 years ago | (#39551979)

The experiment reports a new upper limit on the neutrino mass. I've seen upper limit estimates before this one, but I don't ever recall seeing a lower limit reported on a direct measurement of the neutrino mass. Nonzero mass is a requirement in standard theories of neutrino oscillation but that's a consequence of the theory, not a direct measurement. Is there a direct measurement of a lower limit out there that I'm not aware of?

Re:lower limit on neutrino mass? (5, Informative)

Anonymous Coward | more than 2 years ago | (#39552227)

There are measurements that can determine the difference in the neutrino masses, or some similar function (e.g. difference in their masses squared). This gives that at least one of the neutrinos has a mass of 0.04 eV, and a second one has to have a mass of at least 0.009 eV. It doesn't really give a lower bound on the smallest one, although there are some other estimates of their masses from cosmological and astronomical data.

South Pole. It figures (3, Funny)

PPH (736903) | more than 2 years ago | (#39552775)

There's nothing better to do there.

If the telescope was in Hawaii, they'd just put down any old number and hit the beach early. "Surf's up, dude!"

Re:South Pole. It figures (0)

Anonymous Coward | more than 2 years ago | (#39558759)

Clearly you are not aware of the orgies they have on south pole...

Any interference, possibly... (0)

Anonymous Coward | more than 2 years ago | (#39558155)

...from a can opener, maybe?

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