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<div class="ss"><div><span>导读： </span>天文物理学中的重大问题之一是发现围绕其他恒星运行的、可能有生命存在的类地行星。常规望远镜不擅长直接成像这样的小目标，因为主星的光通常会淹没行星的相对较弱的光。但是，在空间成像方面一项新的技术开发可能解 ...</div> </div> <!--[diy=diysummarybottom]--><div id="diysummarybottom" class="area"></div><!--[/diy]--> <div class="d"> <!--[diy=diycontenttop]--><div id="diycontenttop" class="area"></div><!--[/diy]--> <table cellpadding="0" cellspacing="0" class="vwtb"><tr><td id="article_content"><div> 天文<a href="http://theory.oecr.com" target="_blank" class="relatedlink">物理</a>学中的重大问题之一是发现围绕其他恒星运行的、可能有生命存在的类地行星。常规望远镜不擅长直接成像这样的小目标，因为主星的光通常会淹没行星的相对较弱的光。但是，在空间成像方面一项新的技术开发可能解决这个恼人的问题。 </div><div><br></div><div> 由佛罗里达理工学院天文物理学家Daniel Batcheldor领导的一项研究演示了一种电荷注入器件（charge injection device, or CID），有能力捕获同样图片中比其他目标弱千万被的目标的光。临近恒星的系外行星就是其中一例。CID作为相机的工作原理是：每一个像素独立工作并且使用一种特殊的寻址机制。很亮的像素快速获得地址，同时允许弱像素聚集弱光。 </div><div><br></div><div> Batcheldor说：“如果该技术能够置入未来的空间任务，就可能帮助我们发现宇宙中一些复杂的现象。” </div><div><br></div><div> 该研究结果于2016年1月18日发表在<a href="http://theory.oecr.com" target="_blank" class="relatedlink">学术</a>杂志Publications of the Astronomical Society of the Pacific上。 </div><div><br></div><div> 为了详细研究系外行星，科学家们被迫观测这些临近明亮恒星附件的暗弱目标。“目前的仪器技术复杂昂贵，仍然是一种直接获得类地行星图像的方法。” </div><div><br></div><div> 在美国天文协会的资助下，Batcheldor和他的几位研究生在佛罗里达理工学院0.8米Ortega望远镜上使用CID进行了研究。他们能够挑选出比天狼星（夜晚天空最亮的星）暗弱7000万倍的目标。超过商品天文相机1000倍。 </div><div style="text-align: center;"><p><a href="data/attachment/portal/201606/13/091140ofqvuvu00ez0l01g.jpg" target="_blank"><img src="data/attachment/portal/201606/13/091140ofqvuvu00ez0l01g.jpg"></a></p></div><div><div style="text-align: center;"> 图：CID器件有能力探测弱目标，甚至是银河系最亮的天狼星后面的暗弱目标。“A”图像<a href="http://display.oecr.com" target="_blank" class="relatedlink">显示</a>天狼星区域，“B”图像显示探测到的天狼星附近的弱目标。 </div><div><br></div><div> 弱目标能够被准确探测到只是不太理想（大气层较厚）的事实使应用CID进行观测成为现实。Batcheldor计划在今年晚些时候在加纳列群岛的一台望远镜上<a href="http://opticaltest.oecr.com" target="_blank" class="relatedlink">测试</a>CID，还计划在空间站测试CID。Thermo-Fisher Scientific公司正在研制这些CID。 </div><div><br></div><div> Batcheldor的解决方案，科学家一定会有兴趣，因为它的价格比其他方法（如遮挡，）相对低廉。 </div><div><br></div><div> Batcheldor表示：“我个人，喜欢很简单很直接的方法，特别是遇到复杂问题的时候。CID能够看亮光源临近的弱源，不会经历典型相机都有的图像降级情况。” </div></div><div style="text-align: center;"><p><a href="data/attachment/portal/201606/13/091156te8azce3z6zy44cg.jpg" target="_blank"><img src="data/attachment/portal/201606/13/091156te8azce3z6zy44cg.jpg"></a></p><p>欢迎关注光电<a href="http://news.oecr.com" target="_blank" class="relatedlink">资讯</a>微信公众号，每天将由光电工程师<a href="http://club.oecr.com" target="_blank" class="relatedlink">社区</a>网站(oecr.com)编辑团队为您精选行业动态，科技资讯，技术解析，光电<a href="http://www.oecr.com/portal.php?mod=list&catid=62" target="_blank" class="relatedlink">科普</a>等精彩内容。</p></div></td></tr></table> <!--[diy=diycontentbottom]--><div id="diycontentbottom" class="area"></div><!--[/diy]--> <script src="data/cache/home.js?eOg" type="text/javascript"></script> <div id="click_div"><table cellpadding="0" cellspacing="0" class="atd"> <tr><td> <a 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17:45</span> </dt> <dd>占坑编辑ing</dd> </dl><a name="comment_anchor_6810"></a> <dl id="comment_6810_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(6810, '4525');">引用</a> </span> <a href="http://club.oecr.com/space-uid-15332.html" class="xi2 xw1" c="1">louyt</a> <span class="xg1 xw0">2016-6-14 09:14</span> </dt> <dd>觉得还挺不错的，我会多宣传的。</dd> </dl><a name="comment_anchor_6794"></a> <dl id="comment_6794_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(6794, '4525');">引用</a> </span> <a href="http://club.oecr.com/space-uid-80172.html" class="xi2 xw1" c="1">leddream</a> <span class="xg1 xw0">2016-6-14 01:14</span> </dt> <dd>灌水够难的</dd> </dl><a name="comment_anchor_6782"></a> <dl id="comment_6782_li" class="ptm pbm bbda cl"> <dt class="mbm"> <span class="y xw0 xi2"> <a href="javascript:;" onclick="portal_comment_requote(6782, '4525');">引用</a> 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