╄川姣棰娴瑕灏锛

绉-绉瀛瑕浠缁褰浜虹被灏变浜绌猴浠凡缁浜澶╋纭浜绁ㄦ骞舵崇ラ杩涓锛浠界ㄨ煎浠ョ扮5000棰宸茬涓轰汉绫诲骞寸浼翠荆

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哄╃Cerro Tololo缇床澶╂俱剧锛Reidar Hahn/Fermilab

介ャ(The Dark Energy Survey(DES))ぇ绾400绉瀛浣锛浠浠凡缁濮浜涓烘浜骞寸绌讹绌堕ヨ绯伙浠ュ绛冲瀹瀹浣跨ㄤ介х告(DEC)杩ㄦ哄╁绗北Cerro Tololo涓Victor m . Blanco 4绫虫杩DECㄧ戒╄宸磋揪缁翠杩璐圭背瀹楠瀹ょ瑁锛瀹涓570涓告猴藉ヨ绯伙瀹浠姣浜澶

介╄川

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惰杩娴ㄥ瑰绌轰腑3浜挎绯荤浣缃璺绂伙杩椤硅ュ藉瀵瑰涓涓ぉ璋棰╄川杩琛瑕杩般╄川琚涓烘瀹涓浜浣瀹涓涓绾跨垫尝浠讳褰㈠电介镐浣ㄣ涓瀹浼间苟娌℃褰㈡杩风澶у澶╀

╄川ㄦ介ヤ腑2600涓涓绯荤寮娴恒剧锛Chihway Chang of the Kavli Institute for Cosmological Physics at the University of Chicago and the DES collaboration

娌℃娉存版╄川(姝ゅ)惰杩绯绘杞搴浠ラ存扮板褰卞濡浣璁＄烘绯诲瑙璐ㄩ杞搴浣灏变瀹浠杞搴瀹浠璇ョ瑕蹇杩杩浜绯诲璇ヨ瑁缁骞寸绌讹澶╂瀛浠虹璁猴姣釜绯婚藉╄川锛瀹浠骇棰澶寮灏杩浜绯诲ㄤ璧枫

瀹瀹涓╄川

惰ㄦ村ぇ寸瀹瀹涓绌跺涓绯绘澶涓绉规瑕涓烘锛澶╂瀛蹇椤婚ㄤ绉寮

1916骞撮垮浼孤风卞瑷浜寮搴锛1919骞撮跨路变椤跨靛＋棣娆¤娴拌绉璞°卞骞夸稿璁鸿浠缁瀹涓辨剁┖茬变ㄧ┖翠腑寸嚎浼濡剁┖集茬锛ｄ瀹灏变涓涓瀵锛灏卞ソㄥお绌轰腑璧颁″集茬璺

杩涓璞″浠ョㄦョ绌跺瀹涓╄川伴甯绉瀛浠ㄤ涓ヨ绯(lensing绯)锛瀹涓涓绯荤虫磋版(绉颁负瑙娴绯)锛浠ョ拌瑙娴扮绯荤茬惧褰舵绯荤璐ㄩ炽涓洪舵绯荤璐ㄩ瑙╄川╄川缁锛寮浣跨瀛藉存瑙瀵╄川瀛ㄥ甯锛灏卞瀹韩涓峰ぇ杩涓ㄤ绯荤澶ф绯诲㈡蹭撮ヨ绯荤兢惧杩ㄦユ

DES杩甯浜涓椤逛娇ㄨ绉绌跺瀵规ヨ扮绉涓璺绂荤2600涓涓绯荤锋琛浜绌躲绂绘浠杩绯昏杩杩浣跨ㄨ椤规浠缁瑙瀵绯诲惧褰浠浠藉缁跺洪褰㈡╄川甯锛浠ュ瀹ㄨ70浜垮勾浣绉诲ㄥ锛瀹瀵垮界涓

姝ｅ浠浠瀹瀹╄川剁惰浠や汉璁剁杩姣娴棰娴瑕灏涓浜

朵腑涓涓镐剧娴ヨぇ稿╃绾跨典俊锛绉颁负瀹瀹寰尝(CMB)CMB瀹38涓骞村瀹瀹涓介甯1998骞达瀹瀹娴(COBE)浣瀹ｅ锛CMB骞朵ㄥ锛10涓涔涓娓╁害风广濞灏妫井娉㈠寮ф娴(WMAP)璇瀹骞舵硅浜COBE娴

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CMB棰娴╄川甯涓锛浠瀹涓╄川甯渚璧浜杩甯姣绔濡杩涓╄川锛ｇ╄川灏变稿杩╄川锛杩浜╄川浼裤峰浠ㄩヨ灏ユ灏锛浠澶╃╄川甯涔浼褰卞ぉ

姝ゅㄥぇ稿38涓骞撮锛绉瀛浠╃CMB娴ヨ绠瀹瀹70浜垮勾峰褰浠浠杩浜棰娴涓DES杩琛姣杈讹浠浠DES娴棰娴瑕灏涓浜

涓瀹寸煎

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ｄユ涔锛DES涓涓骞寸浠诲★璁板浜骞寸版杩缁浣跨ㄤ绗骞寸版杩版ㄥ涓姝ゅ瀹寸版灏瑕5000骞虫瑰害澶╃┖锛杩缁瑕浜1500骞虫瑰害版瑕浜涓堕淬姝わ杩涓浜剧惰娌℃瀹瀵瑰存版村2020骞存浼虹

惰浠澶╂寰版芥崇锛浠瀹瀹婕瑙ｅ藉ㄥ涓锛充娇村版锛杩绉绱у崇郴娑澶变锛DES浣浠ㄧ户缁琛朵娴璁颁DE杩涓瀛浠ｈ〃介杩涓缁藉璇浠浜充介琛涓猴浠ュ浠ㄦヨ界扮涓瑗裤杩娴浠涓瀛浠や汉杩风堕寸寮濮

浣锛Don Lincoln

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缂璇锛涓

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