Notice (8): file_put_contents(): Write of 270 bytes failed with errno=28 No space left on device [CORE/src/Log/Engine/FileLog.php, line 140]

Notice: file_put_contents() [function.file-put-contents]: Write of 1108 bytes failed with errno=28 No space left on device in /www/wwwroot/www.adminso.com/vendor/cakephp/cakephp/src/Log/Engine/FileLog.php on line 140
Notice (8): SplFileObject::fwrite() [<a href='https://secure.php.net/splfileobject.fwrite'>splfileobject.fwrite</a>]: Write of 5437 bytes failed with errno=28 No space left on device [CORE/src/Cache/Engine/FileEngine.php, line 141]

Notice: file_put_contents() [function.file-put-contents]: Write of 3153 bytes failed with errno=28 No space left on device in /www/wwwroot/www.adminso.com/vendor/cakephp/cakephp/src/Log/Engine/FileLog.php on line 140
Notice (8): unserialize() [<a href='https://secure.php.net/function.unserialize'>function.unserialize</a>]: Error at offset 16363 of 16373 bytes [APP/Controller/NewsController.php, line 5571]

Notice: file_put_contents() [function.file-put-contents]: Write of 2761 bytes failed with errno=28 No space left on device in /www/wwwroot/www.adminso.com/vendor/cakephp/cakephp/src/Log/Engine/FileLog.php on line 140
Notice (8): SplFileObject::fwrite() [<a href='https://secure.php.net/splfileobject.fwrite'>splfileobject.fwrite</a>]: Write of 822 bytes failed with errno=28 No space left on device [CORE/src/Cache/Engine/FileEngine.php, line 141]

Notice: file_put_contents() [function.file-put-contents]: Write of 3152 bytes failed with errno=28 No space left on device in /www/wwwroot/www.adminso.com/vendor/cakephp/cakephp/src/Log/Engine/FileLog.php on line 140
Warning (2): Undefined array key "nsort" [APP/Controller/NewsController.php, line 3613]

Notice: file_put_contents() [function.file-put-contents]: Write of 2075 bytes failed with errno=28 No space left on device in /www/wwwroot/www.adminso.com/vendor/cakephp/cakephp/src/Log/Engine/FileLog.php on line 140
Warning (2): Trying to access array offset on value of type null [APP/Controller/NewsController.php, line 3613]

Notice: file_put_contents() [function.file-put-contents]: Write of 2099 bytes failed with errno=28 No space left on device in /www/wwwroot/www.adminso.com/vendor/cakephp/cakephp/src/Log/Engine/FileLog.php on line 140
Warning (2): Undefined array key "nsort" [APP/Controller/NewsController.php, line 3613]

Notice: file_put_contents() [function.file-put-contents]: Write of 2075 bytes failed with errno=28 No space left on device in /www/wwwroot/www.adminso.com/vendor/cakephp/cakephp/src/Log/Engine/FileLog.php on line 140
Warning (2): Trying to access array offset on value of type null [APP/Controller/NewsController.php, line 3613]

Notice: file_put_contents() [function.file-put-contents]: Write of 2099 bytes failed with errno=28 No space left on device in /www/wwwroot/www.adminso.com/vendor/cakephp/cakephp/src/Log/Engine/FileLog.php on line 140
Notice (8): unserialize() [<a href='https://secure.php.net/function.unserialize'>function.unserialize</a>]: Error at offset 16147 of 16373 bytes [APP/Controller/NewsController.php, line 5571]

Notice: file_put_contents() [function.file-put-contents]: Write of 2398 bytes failed with errno=28 No space left on device in /www/wwwroot/www.adminso.com/vendor/cakephp/cakephp/src/Log/Engine/FileLog.php on line 140
Notice (8): unserialize() [<a href='https://secure.php.net/function.unserialize'>function.unserialize</a>]: Error at offset 4067 of 4085 bytes [APP/Controller/NewsController.php, line 5571]

Notice: file_put_contents() [function.file-put-contents]: Write of 2489 bytes failed with errno=28 No space left on device in /www/wwwroot/www.adminso.com/vendor/cakephp/cakephp/src/Log/Engine/FileLog.php on line 140
暗物质潜在质量范围变窄 - 站长搜索
首页 > 资讯列表 > 科技资讯 >>

暗物质潜在质量范围变窄

Warning (2): Undefined array key "nsort" [ROOT/plugins/Kuhuang/templates/Websites/view.php, line 430]
Notice: file_put_contents() [function.file-put-contents]: Write of 2423 bytes failed with errno=28 No space left on device in /www/wwwroot/www.adminso.com/vendor/cakephp/cakephp/src/Log/Engine/FileLog.php on line 140
Warning (2): Trying to access array offset on value of type null [ROOT/plugins/Kuhuang/templates/Websites/view.php, line 430]

Notice: file_put_contents() [function.file-put-contents]: Write of 2447 bytes failed with errno=28 No space left on device in /www/wwwroot/www.adminso.com/vendor/cakephp/cakephp/src/Log/Engine/FileLog.php on line 140
">
Warning (2): Undefined array key "nsort" [ROOT/plugins/Kuhuang/templates/Websites/view.php, line 430]

Notice: file_put_contents() [function.file-put-contents]: Write of 2423 bytes failed with errno=28 No space left on device in /www/wwwroot/www.adminso.com/vendor/cakephp/cakephp/src/Log/Engine/FileLog.php on line 140
Warning (2): Trying to access array offset on value of type null [ROOT/plugins/Kuhuang/templates/Websites/view.php, line 430]

Notice: file_put_contents() [function.file-put-contents]: Write of 2447 bytes failed with errno=28 No space left on device in /www/wwwroot/www.adminso.com/vendor/cakephp/cakephp/src/Log/Engine/FileLog.php on line 140
2021-01-29 08:48:13 转载来源: 科技日报

科技日报北京1月28日电 (记者刘霞)据物理学家组织网27日报道,英国科学家利用引力作用于暗物质这一事实,首次从根本上计算出了暗物质的质量范围。这一范围比以前认为的要窄得多

科技日报北京1月28日电 (记者刘霞)据物理学家组织网27日报道,英国科学家利用引力作用于暗物质这一事实,首次从根本上计算出了暗物质的质量范围。这一范围比以前认为的要窄得多。最新研究缩小了暗物质粒子的潜在质量范围,也为未来的暗物质“捕手”限定了搜寻范围,还有助于科学家未来发现潜在的新作用力。

暗物质不发光、不发出电磁波、不参与电磁相互作用,无法用任何光学或电磁波观测设备直接“看到”,科学家们通过暗物质对星系的作用确定了其存在。宇宙微波背景辐射观测实验的结果给出了暗物质在宇宙物质总量中的比例。在宇宙中,普通物质只占4.9%,暗物质占26.8%,暗能量占到68.3%,而暗能量和暗物质也被认为是21世纪初物理学天空存在的两朵乌云。

在最新研究中,萨塞克斯大学数学与物理科学学院的泽维尔·卡尔莫特教授领导的研究小组,假设引力是唯一作用于暗物质的作用力,并借此计算出暗物质粒子的质量介于10-3eV(电子伏特)到107eV之间,比理论认为的10-24eV到1028eV要窄得多。

“这是第一次有人用量子引力来计算暗物质的质量范围。”卡尔莫特说,这项研究表明,除非有一种迄今未知的作用力对其施加影响,否则,暗物质不可能像某些理论所说的那样“超轻”或“超重”。

研究人员认为,这项研究在两个方面让物理学家们受益:一是聚焦了暗物质的搜索区域;二是有助于揭示宇宙中是否存在神秘的未知力——如果未来发现暗物质的质量超出了萨塞克斯团队预测的范围,那表明暗物质除受到引力作用外,还受其他作用力的影响。

总编辑圈点

很多人对这类研究的意义感到迷惑。确实,暗物质它重不重,似乎不如我们自己最近重没重来的更紧要。不过对于理论学家来说,“超重”的暗物质,证明还存在人们所不知的额外作用力及引力;而对实验学家来说,重量范围的缩小,也能让他们更进一步地发现暗物质的真实本质。至于这真实本质的意义,只能说,当把人类作为一个整体看待时,随着认知和能力的进展,我们无法不去探求宇宙形成和演化的真谛,这是蒙昧与智慧生物的区别。

标签: 物质 潜在 质量 范围 变窄


声明:本文内容来源自网络,文字、图片等素材版权属于原作者,平台转载素材出于传递更多信息,文章内容仅供参考与学习,切勿作为商业目的使用。如果侵害了您的合法权益,请您及时与我们联系,我们会在第一时间进行处理!我们尊重版权,也致力于保护版权,站搜网感谢您的分享!

站长搜索

http://www.adminso.com

Copyright @ 2007~2025 All Rights Reserved.

Powered By 站长搜索

打开手机扫描上面的二维码打开手机版


使用手机软件扫描微信二维码

关注我们可获取更多热点资讯

站长搜索目录系统技术支持