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ꥢι¤ʪKIC 8462852 ǿܤ˸Ƥ⡢ɤ⤪ȤפʤѲ򸫤Ƥ

ꥢι¤ʪ֥פ񤫤빱KIC 8462852ס¬Ϥ˲ʳؼԤǤ

2016/10/6() 10:46ۿ

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ꥢĤޤ¸ߤϳǧƤʤΤΡʤȤ⿴륭ɤǤưꤽΥꥢˤ빽¤ʪ¸ߤƤKIC 8462852פ򸦵Ԥ˴¬ΤǤη̤ϤޤƤԲĻ׵ĤʤΤǤ
ޤKIC 8462852Ϥ뤵ԲĻ׵ĤѲ뤳ȤΤƤޤѲ̲̾ˤ٤ưͤĹޤŤΤäǤΤȤ顢KIC 8462852ϥꥢ󤬹饨ͥ륮ݼ褹뤿ι¤ʪ֥פ¸ߤΤǤϡȤ¬⤢ΤǤ
Υץ顼˾Ѥ¬ǤϡǯϤäKIC 8462852ŤäȤȯޤη̤ˤĤƥե˥ؤBen Montetϡ֤Τ褦Ĺ֤ˤ錄KIC 8462852뤵Ѳϡܤ٤ݤǤ4ǯʾˤ錄̩ʴ¬η̡KIC 8462852ϳΤ˰ŤʤäƤ뤳Ȥ狼ޤΤ褦ĹְŤʤ빱ϤޤΤƤޤפȸäƤޤ
Υؤδ¬ǤϡKIC 846285222%ŤʤäȤޤޤǹŤʤΤ̲ǤŤ餯ʬФα뤤ϵKIC 8462852Ȥδ֤ˤʪΤʤɤθ˵󤲤Ƥޤơꥢˤ빽¤ʪ⤽θΤΰĤǤ

ϥץ顼˾ˤ2009ǯ2013ǯˤ¬̤Ǥǽ3ǯ֤KIC 84628521%ۤɰŤʤꡢθȾǯǰ쵤2%ŤʤäȤ狼ޤˤθŤ֤Ⱦǯۤ³ʤɡǿܤ˸Ƥ֤ɤ⤪פȤפʤѲ򸫤ƤΤǤ
ǰʤ顢ǤKIC 8462852ԲĻ׵Ĥ뤵ѲͳȽƤޤ󡣤ͳŷΤˤΤʤΤ뤤ϥꥢˤΤʤΤġαФ򤬤ޤޤʤǤʤȤKIC 8462852϶ƤƤ褦Ǥ

ȸ sorae.jp




ʪؼԡե꡼ޥ󡦥󾧤¤ײ衣ۤΥͥ륮Ψ褯Ѥ٤ۤ˼괬͹¤ʪ

ʸϹΥͥ륮̵̤ʤȤȤȤΤŷΤ˰¸ʤͥ륮ñǤȤ顢ŷΤɬ̵Ȥˤʤ롣

㤨оﲹͻ礬ǽǤꡢɤαʸ٤ᤫȯȤ顢α˥ŷΤ¸ߤʤ

ˤɬŪŪʪʸȯϤʸɬŪ˱ʽФϤȤǹͤʤ顢ŷΤ˰ƤʤȤϡ餫δʰפʥͥ륮ȯºߤڵ򤫤⤷ʤ




1480ǯˤϢKIC 9462852פϹ٤ʱͤˤ¤ʪ⤬ͭϡ

NASAβʤꡢƤӡֱͤˤ¤ʪͭϤˡ ϢKIC 9462852פθݤȤϡ

2016.01.21

Ϥ걧ͤˤ¤ʪ¸ߤΤǤϤʤǯ9ԼȤޤǤˤԵ§ʸݤǧ줿1480ǯˤϢKIC 9462852 ޤʪĤ򤫤⤷Ƥ롣

顢NASAϤθݤФˤäƸפ줿ΤǤϡפȤͽ¬򤿤ưö夤褦ˤߤȯˤäơֱͷ¤ʪפβǽ̵ǤʤSETIϵ峰Ū̿õץȡˤȯɽκˤĤƲʳطϥǥNEW SCIENTISTפ15Ƥ롣

٤ʱͤˤ¤ʪ⤿餹ݡ

2016-01-25_213611

KIC 9462852פ2009ǯNASAΥץ顼˾ˤäƤϤ礦¤ȶ׺¤δִ¬줿ۤ뤯ʥͥ륮Ϣ

Ȥ¿ŷΤǤ뤬2015ǯ9Хܥ䥸Ψ륤ؤθˤäơKIC 9462852פ̤ǤϸʤԵ§ʸݤ¬줿ʸƬ˵褦ˡNASAʣˤäƸפ줿ǽ⤤Ȥ븫ȯɽ⡢ˤϵ䤬ĤäNASAθʤаμˤɤŤƸݤϴ¬ϤʤΤΰͤʸݤʪϰȤʤä

ܥ䥸ϲ2009ǯ2013ǯޤǤ4ǯ֤ΥǡѻȡݤԵ§580δֳ֤ǡ20ѡȶΥ٥ޤǵ޷ळȤ狼ä

֤Τ褦ʸݤߤϺޤǤߤȤޤ󡣥ǡ򵿤ޤʤŪǤʤ

ȥܥ䥸ϸäƤ롣

2016-01-25_214015

Ȥ̲ۤᤷȤƤ⡢פϤѡȡΤ褦˺22ѡȤ⸺ʳŪĤʤǤΤ

桢ڥ󥷥Х˥Ωؤŷʸؼԥ󡦥饤Ȼˤäơ֥פΤ褦ʹ٤ʸıͤˤäƺ줿¤ʪΤǤϤʤȤ⤬줿

֥פȤϡ1960ǯ˥ꥫʪؼԥե꡼ޥ󡦥ˤä󾧤줿ФǮͥ륮Ѥ뤿ˡμϤ˵ʹ¤ʪᤰ餻ѤȤ֥ȥåפϤSFʤˤȤꤢΤ
 
2016-01-25_213711

⤷KIC 9462852פθݤ٤ʸıͤߤ¤ʪˤäƼäƤȤȶȤᤫƤͤ⤤桢SETIˤĴʤ줿ֱͷ¤ʪפ򼨤ڵϸĤʤäDzʳؼԤϡפ˼«褦ȤƤ衢ȯʤ졢֤ϵѤƤΤġġ

Ƥɤֱͷ¤ʪ
 
2016-01-25_213745

ǯäơʪŷʸؤȤ륤ʽΩؤΥ֥åɥ꡼եβĩߡճȯˤɤ夤

ϡСؤݴɤƤ1μ̿ĤΥǥǡޤ̤äƤߤȡKIC 9462852פȹͤ1890ǯ1989ǯδ֤˲˰ŤʤäƤ뤳Ȥͤߤ᤿Τ100ǯδ֤˰δֳ֤Ǹݤǧ줿ȤϡNASAˤפꤹ˽ʬ̤

ʤʤ顢ˤäƼä줿ȤƤ⡢줬Ĺ֤ϤäưΤȤ˴¬뤳ȤϤꤨʤΤϤɤȤʤΤ

֥åɥ꡼եϡ

ֳ20ѡȤθä뤿ˤϾʤȤ⤽5ʬ1礭ʪΤˤ뤳Ȥˤʤޤˡ֤̤᤮ˤäƤޤǸȤȤ˹ͤˤǤ˱ͤˤ¤ʪǤäȤƤ⡢⤦ĴϤ򤹤ƤɬפޤפȸäƤ롣

NASAפꤵȡΤȤͤĤȤϤ⤦ֱͷ¤ʪפĤäƤʤΤɤΤ褦ʸ夯ΤڤߤǤϤ뤬KIC 9462852פθݤǧ줿ϡֱͤη¤ʪפʤɡʳŪʰոªïˤƤʤäΤȤפͥΤ褦ˤαΤɤˤʵ¤ʪ¸ߤΤ⤷ʤ

ȸ TOCANA


δ̯˴̯ ƥꥢβǽ

2016ǯ125

That bizarre-looking star just got a lot weirder — and yes, it could be aliens

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Three months ago, news broke that a giant "alien megastructure" could exist around a bizarre-looking star 1,500 light-years away.

31500ǯδ̯ʸܤμϤˡ֥ꥢε¤ʪפ¸ߤǽȤ˥塼Фޤ

bizarre - ̯
weirder - ̯

While the prospect of aliens was first launched by Penn State astronomer Jason Wright, almost everyone in the astronomy community agreed that the chances that this was the case were "very low."

Υꥢθ̤ϥڥ󥷥Х˥ΩؤJason WrightˤäƽƽФ줿ΤǤꡢ ŷʸإߥ˥ƥΤۤβǽϡ֤ȤƤ㤤פȤƤޤ

Now, the latest investigations into this strange star by Louisiana State University astronomer Bradley Schaefer have reignited the alien theory, New Scientist reported.

륤ʽΩؤŷʸؼBradley Schaeferˤ롢̯ˤĤƤκǿĴǡꥢ夵ޤ New Scientist𤷤ޤ

reignited - dz

What makes this star, KIC8462852, so bizarre is the drastic changes in light we see from it over time. Many stars experience temporary fluctuations in brightness, increasing and decreasing in luminosity over time, but KIC8462852's changes are severe by comparison.
Between 2009 and 2013, astronomers using the Kepler space telescope discovered that it would sometimes lose up to 20% of its brightness. What's more, the changes didn't follow any obvious pattern.
That would suggest something gigantic must be blocking the light at random times, meaning that it couldn't be a planet or other regular orbiting object because that would generate a distinct pattern of dimming light. It must be something that changes shape over time, thereby blocking different levels of light at random intervals.

٤20ѡȤ뤳Ȥꡢǥѥˤޤä§ʤᡢ ʹ¤ʪ˼פäƤȼ줦롣 ¾̾εƻʪΤǤϤꤨʤäθФƤΤǤ

Surprise: It's probably not comets

ץ饤餯ǤϤʤ

An alien megastructure, called a Dyson swarm, was suggested as one explanation for what scientists have observed, but the most likely reason astronomers came up with was comets — a giant family of them.
But Shaefer says not so fast.

ŷʸؼԤ緲ˤȤޤShaeferϤʤ®Ϥʤȸޤ

comets

"The comet-family idea was reasonably put forth as the best of the proposals, even while acknowledging that they all were a poor lot," Schaefer told New Scientist. "But now we have a refutation of the idea, and indeed, of all published ideas."

緲ȹͤΤϡ餬󤯤󤢤äȤȤǧᤵСǹƤȤŪʤΤǤ ޡ䤿ϡȿƤƤȿͤäƤޤ

acknowledging - ǧ
refutation - ȿ

To make his discovery, Schaefer had to dig deep down into the astronomy archives at Harvard. It turns out, astronomers have data on KIC8462852 dating back as far as 1890.
By analyzing over 1,200 measurements of this star's brightness taken from 1890 through 1989, Schaefer found that the irregular dimming of KIC8462852 has been going on for over 100 years. Schaefer published his findings in the online preprint server arXiv.org.
What's more, he explains in his paper that this "century-long dimming trend requires an estimated 648,000 giant comets (each with 200 km diameter) all orchestrated to pass in front of the star within the last century," which he said is "completely implausible."

ɴǯĹθǤˤϡ648000Ĥεľ200᡼ȥˤɴǯˡä̤ڤʤȤʤ ϡ˿

So what is it?

ǤϡϤʤǤ礦

By killing the comet theory, Schaefer has brought us one step closer to finding out what is really happening around KIC8462852.

spitzer20141110

At the same time, he's also reignited the possibility that the source could be an alien megastructure that an advanced alien civilization has been slowly building over time. One thing's certain for Schaefer: The bizarre dimmings are probably caused by a single, physical mechanism that's undergoing some type of ongoing change.
"The century-long dimming and the day-long dips are both just extreme ends of a spectrum of timescales for unique dimming events, so by Ockham's Razor, all this is produced by one physical mechanism," Shaefer said in his paper. "This one mechanism does not appear as any isolated catastrophic event in the last century, but rather must be some ongoing process with continuous effects."
Schaefer isn't the only one interested in learning more about KIC8462852. Late last year, astronomer Doug Vakoch and his team at the new organization called SETI (Search for Extraterrestrial Intelligence) International — not to be confused with the SETI Institute — went hunting for aliens around KIC8462852.
They searched for signals that an alien civilization might be beaming toward Earth either in radio or visible wavelengths, but ultimately they came up empty handed. So, if it is aliens, then they're being awfully quiet.

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