{"id":16762,"date":"2023-03-27T01:00:55","date_gmt":"2023-03-26T16:00:55","guid":{"rendered":"https:\/\/www.fruitfulenglish.com\/blog\/?p=16762"},"modified":"2023-10-03T23:06:49","modified_gmt":"2023-10-03T14:06:49","slug":"eagle-56","status":"publish","type":"post","link":"https:\/\/www.fruitfulenglish.com\/blog\/eagle-56\/","title":{"rendered":"\u3010\u82f1\u8a9e\u4e2d\u7d1a\u8005\u5411\u3051\u3011\u82f1\u691c\uff11\u7d1a\u9577\u6587\u554f\u984c\u3092\u8aad\u3082\u3046\uff01"},"content":{"rendered":"

\u307f\u306a\u3055\u3093\u3001\u3053\u3093\u306b\u3061\u306f<\/p>\n

\u301c\u306f\u3058\u3081\u306b\u301c<\/span><\/p>\n

\u82f1\u691c\u306e\u554f\u984c\u304c\u516c\u8868\u3055\u308c\u3066\u3044\u308b\u306e\u306f\u3054\u5b58\u3058\u3067\u3059\u304b\uff1f<\/p>\n

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\u4eca\u56de\u306f\u30012022\u5e74\u306e\u82f1\u691c\u3067\u516c\u8868\u3055\u308c\u305f\u82f1\u691c\uff11\u7d1a\u306e\u554f\u984c\u304b\u3089\u9577\u6587\u3092\u629c\u7c8b\u3057\u3066\u3001\u4e00\u7dd2\u306b\u8aad\u307f\u9032\u3081\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/span><\/p>\n

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\u30bf\u30a4\u30c8\u30eb\uff1aThe Early Solar System\uff08\u521d\u671f\u306e\u592a\u967d\u7cfb\uff09<\/span><\/p>\n

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The origin of our solar system has long been <\/span>the subject of speculation.<\/b> The most widely accepted explanation is <\/span>the nebular hypothesis,<\/b> which argues that the solar system began as a massive cloud of <\/span>interstellar gas<\/b> and <\/span>debris<\/b> that collapsed under <\/span>immense gravitational forces<\/b>. <\/span>The resulting mass of swirling matter<\/b> eventually formed into pockets of material that then came together to become the sun and planets. While this <\/span>accounts well for<\/b> some aspects of the solar system\u2019s formation, other predictions <\/span>derived from <\/b>the hypothesis do not <\/span>line up with<\/b> the solar system\u2019s current state. For example, in computer simulations based on the hypothesis, the masses of certain planets and the regions in which those planets <\/span>reside<\/b> were <\/span>inconsistent<\/b> with current astronomical observations. The <\/span>discrepancies<\/b>, however, could be due to the fact that the nebular hypothesis was originally based on the assumption that planets in our solar system formed in their current locations and have mostly remained there.<\/span><\/p>\n

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\u592a\u967d\u7cfb\u306e\u8d77\u6e90\u306f\u3001\u9577\u3044\u9593\u3001\u3055\u307e\u3056\u307e\u306a<\/span>\u61b6\u6e2c\u3092\u547c\u3093\u3067\u304d\u305f\u3002<\/b>\u592a\u967d\u7cfb\u306f<\/span>\u661f\u9593\u30ac\u30b9<\/b>\u3084<\/span>\u5875<\/b>\u306e\u5de8\u5927\u306a\u96f2\u304b\u3089\u59cb\u307e\u308a\u3001<\/span>\u5de8\u5927\u306a\u91cd\u529b<\/b>\u306b\u3088\u3063\u3066\u5d29\u58ca\u3057\u305f\u3068\u3059\u308b<\/span>\u8aac<\/b>\u3067\u3042\u308b\u3002<\/span>\u305d\u306e\u7d50\u679c\u3001\u6e26\u3092\u5dfb\u3044\u305f\u7269\u8cea\u306e\u584a<\/b>\u304c\u3084\u304c\u3066\u30dd\u30b1\u30c3\u30c8\u72b6\u306b\u306a\u308a\u3001\u305d\u308c\u304c\u96c6\u307e\u3063\u3066\u592a\u967d\u3084\u60d1\u661f\u306b\u306a\u3063\u305f\u3068\u3044\u3046\u306e\u3060\u3002\u3057\u304b\u3057\u3001\u3053\u306e\u4eee\u8aac\u304b\u3089<\/span>\u5c0e\u304b\u308c\u308b<\/b>\u4e88\u6e2c\u306f\u3001\u592a\u967d\u7cfb\u306e\u73fe\u72b6\u3068<\/span>\u4e00\u81f4\u3057\u3066<\/b>\u3044\u306a\u3044\u90e8\u5206\u3082\u3042\u308b\u3002\u4f8b\u3048\u3070\u3001\u3053\u306e\u4eee\u8aac\u306b\u57fa\u3065\u3044\u305f\u30b3\u30f3\u30d4\u30e5\u30fc\u30bf\u30fc\u30b7\u30df\u30e5\u30ec\u30fc\u30b7\u30e7\u30f3\u3067\u306f\u3001\u3042\u308b\u60d1\u661f\u306e\u8cea\u91cf\u3084\u305d\u306e\u60d1\u661f\u304c<\/span>\u5b58\u5728\u3059\u308b<\/b>\u5730\u57df\u304c\u3001\u73fe\u5728\u306e\u5929\u4f53\u89b3\u6e2c\u3068<\/span>\u98df\u3044\u9055\u3063\u3066<\/b>\u3044\u305f\u306e\u3060\u3002\u3057\u304b\u3057\u3001\u3053\u306e\u3088\u3046\u306a<\/span>\u77db\u76fe<\/b>\u306f\u3001\u3082\u3068\u3082\u3068\u661f\u96f2\u8aac\u304c\u3001\u592a\u967d\u7cfb\u306e\u60d1\u661f\u304c\u73fe\u5728\u306e\u5834\u6240\u3067\u5f62\u6210\u3055\u308c\u3001\u307b\u3068\u3093\u3069\u305d\u3053\u306b\u3068\u3069\u307e\u3063\u3066\u3044\u308b\u3068\u3044\u3046\u4eee\u5b9a\u306b\u57fa\u3065\u3044\u3066\u3044\u308b\u3053\u3068\u306b\u8d77\u56e0\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002<\/span><\/p>\n

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Some of these mysteries may be close to being solved. The smaller planets of the inner solar system are believed to have formed from matter able to <\/span>withstand<\/b> the sun\u2019s <\/span>tremendous heat, <\/b>such as rock and metal. <\/span>Conversely,<\/b> the gas giants Jupiter and Saturn are thought to have formed in regions <\/span>farther from<\/b> the sun, beyond what is referred to as <\/span>\u3000<\/span>the frost line, as temperatures at this distance are low enough for the matter that makes up gas giants to <\/span>solidify<\/b>. Scientists, however, have observed Jupiter\u00adlike gas planets in distant solar systems nicknamed \u201chot Jupiters\u201d orbiting their suns at surprisingly close distances. To explain this, scientists proposed the concept of <\/span>planetary migration, <\/b>and a scenario named the \u201c<\/span>grand tack<\/b>\u201d was modeled, using Jupiter\u2019s formation as a basis, to test the concept. In the scenario, Jupiter <\/span>takes shape<\/b> beyond the frost line, as is expected, but migrates toward the inner solar system, imitating hot Jupiters. However, as a result of gravitational forces from our solar system\u2019s other gas giant, Saturn, Jupiter <\/span>is drawn back out to <\/b>its current location farther from the sun. <\/span>Despite sounding far\u00adfetched,<\/b> the scenario <\/span>\u3000<\/span>has been praised for <\/span>plausibly <\/b>explaining why hot Jupiters exist.<\/span><\/p>\n

 <\/p>\n

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The grand tack scenario may also provide clarity for other apparent <\/span>inconsistencies in<\/b> our solar system. When the computer simulations based on the nebular hypothesis projected that Mars should be much larger than it currently is, the proposed grand tack migration of Jupiter suggested an explanation. By <\/span>factoring in<\/b> Jupiter\u2019s <\/span>trajectory<\/b> in the grand tack scenario, scientists realized the gas giant was likely scattering matter close to the sun that would otherwise have greatly increased Mars\u2019s mass. Furthermore, <\/span>had Jupiter not made its migration,<\/b> planets in the inner solar system, which includes the area where Earth is now, could very well have become larger, <\/span>uninhabitable worlds<\/b> shrouded by<\/b> gas. The vast majority of the inner regions of other known solar systems <\/span>are populated <\/b>by such planets, so scientists believe our solar system may be extremely unique in this regard. If the grand tack scenario proves to be correct, humankind <\/span>owes a great deal of gratitude to<\/b> Jupiter for the planet\u2019s journey through the solar system.<\/span><\/p>\n

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\u301c\u307e\u3068\u3081\u301c<\/span><\/h2>\n

\u3044\u304b\u304c\u3067\u3057\u305f\u3067\u3057\u3087\u3046\u304b\u3002<\/span><\/p>\n

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\u7406\u7cfb\u5206\u91ce\u306e\u7528\u8a9e\u306f\u96e3\u3057\u3044\u3067\u3059\u304c\u3001\u82f1\u691c\uff11\u7d1a\u3067\u306f\u983b\u51fa\u306e\u5185\u5bb9\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/span><\/p>\n

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\u8a2d\u554f\u306e\u65b9\u306f\u82f1\u691cHP\u3067\u3054\u78ba\u8a8d\u304f\u3060\u3055\u3044\u3002<\/span><\/p>\n

 <\/p>\n

\u6700\u5f8c\u307e\u3067\u304a\u8aad\u307f\u3044\u305f\u3060\u304d\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3057\u305f\u3002<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

\u307f\u306a\u3055\u3093\u3001\u3053\u3093\u306b\u3061\u306f \u301c\u306f\u3058\u3081\u306b\u301c \u82f1\u691c\u306e\u554f\u984c\u304c\u516c\u8868\u3055\u308c\u3066\u3044\u308b\u306e\u306f\u3054\u5b58\u3058\u3067\u3059\u304b\uff1f \u3053\u308c\u306f\u6717\u5831\u3067\u3059\u306d\u3002\u7a4d\u6975\u7684\u306b\u8a66\u9a13\u5bfe\u7b56\u3068\u3057\u3066\u53d6\u308a\u7d44\u3093\u3067\u3044\u304f\u306e\u306b\u306f\u30d4\u30c3\u30bf\u30ea\u3067\u3059\uff01\u3053\u308c\u3092\u5229\u7528\u3057\u306a\u3044\u65b9\u6cd5\u306f\u3042\u308a\u307e\u305b\u3093\uff01   \u4eca\u56de\u306f\u30012022\u5e74\u306e\u82f1\u691c\u3067\u516c\u8868\u3055\u308c\u305f\u82f1\u691c\uff11\u7d1a\u306e\u554f\u984c\u304b\u3089\u9577\u6587\u3092\u629c\u7c8b\u3057\u3066\u3001\u4e00\u7dd2\u306b\u8aad\u307f\u9032\u3081\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002   \u30bf\u30a4\u30c8\u30eb\uff1aThe Early Solar System\uff08\u521d\u671f\u306e\u592a\u967d\u7cfb\uff09 &nb…<\/p>\n","protected":false},"author":83,"featured_media":17769,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[443,444],"tags":[168,230,22,285],"class_list":["post-16762","post","type-post","status-publish","format-standard","has-post-thumbnail","category-test","category-eiken","tag-168","tag-230","tag-22","tag-285","article cf"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.fruitfulenglish.com\/blog\/wp-json\/wp\/v2\/posts\/16762","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fruitfulenglish.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fruitfulenglish.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fruitfulenglish.com\/blog\/wp-json\/wp\/v2\/users\/83"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fruitfulenglish.com\/blog\/wp-json\/wp\/v2\/comments?post=16762"}],"version-history":[{"count":5,"href":"https:\/\/www.fruitfulenglish.com\/blog\/wp-json\/wp\/v2\/posts\/16762\/revisions"}],"predecessor-version":[{"id":18803,"href":"https:\/\/www.fruitfulenglish.com\/blog\/wp-json\/wp\/v2\/posts\/16762\/revisions\/18803"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fruitfulenglish.com\/blog\/wp-json\/wp\/v2\/media\/17769"}],"wp:attachment":[{"href":"https:\/\/www.fruitfulenglish.com\/blog\/wp-json\/wp\/v2\/media?parent=16762"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fruitfulenglish.com\/blog\/wp-json\/wp\/v2\/categories?post=16762"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fruitfulenglish.com\/blog\/wp-json\/wp\/v2\/tags?post=16762"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}