<p>指南者留学全国统一咨询热线：<a href="tel:4001831832" style="color:#1677ff; text-decoration:none;">400-183-1832</a>，全国各地区、各分公司联系方式均为此号码。</p><p>&nbsp;</p> <p><span style="color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; font-size: 19.2px; font-weight: 500; white-space: normal; background-color: #f2f3ed; float: none; display: inline;"><img style="display: block; margin-left: auto; margin-right: auto;" src="https://info.compassedu.hk/sucai/content/1728293518202/1728293518202.jpg" width="710" height="444" /></span></p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;"><span style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;">&nbsp;</span></p> <p><span style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;">这幅拼贴画突出了银河系的一小部分区域，这些区域是我们银河系有史以来最详细的红外图的一部分。在这里，我们从左到右，从上到下看到：NGC 3576、NGC 6357、Messier 17、NGC 6188、Messier 22 和 NGC 3603。</span></p> <p>&nbsp;</p> <p>&nbsp;</p> <p><span style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;">它们都是恒星形成的地方的气体和尘埃云，除了 Messier 22，它是一组非常密集的老恒星。这些图像是使用 ESO 的可见光和红外巡天望远镜 （VISTA） 及其红外相机 VIRCAM 拍摄的。</span></p> <p>&nbsp;</p> <p>&nbsp;</p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;"><span style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;">13 年的时间里，V&iacute;a L&aacute;ctea （VVV） 巡天及其扩展 VVV 扩展巡天 （VVVX） 中的 VISTA 变星观测了银河系的中心区域。</span></p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;">&nbsp;</p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;"><span style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;">这些调查使用了位于智利的欧洲南方天文台 （ESO） 设施 VISTA（可见光和红外巡天望远镜），进行了 420 个夜晚的观测，捕获了大约 200,000 张图像，生成了 500 TB 的科学数据。</span></p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;">&nbsp;</p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;"><span style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;">值得注意的发现包括：</span></p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;">&nbsp;</p> <ul style="margin: 0px 0px 1.5em 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;"> <li style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;"><span style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;"><strong style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; font-weight: 600;">球状星团</strong>：我们银河系中最古老的天体。</span></li> </ul> <p>&nbsp;</p> <ul style="margin: 0px 0px 1.5em 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;"> <li style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;"><span style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;"><strong style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; font-weight: 600;">超高速恒星</strong>：由中心超大质量黑洞驱逐出银河系的恒星。</span></li> </ul> <p>&nbsp;</p> <ul style="margin: 0px 0px 1.5em 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;"> <li style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;"><span style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;"><strong style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; font-weight: 600;">银河之窗</strong>：透过星际尘埃和气体清晰地看到银河系的另一侧。</span></li> </ul> <p>&nbsp;</p> <ul style="margin: 0px 0px 1.5em 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;"> <li style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;"><span style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;"><strong style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; font-weight: 600;">RR 天琴座变星</strong>：银河系中心已知最古老的星系群。</span></li> </ul> <p>&nbsp;</p> <ul style="margin: 0px 0px 1.5em 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;"> <li style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;"><span style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;"><strong style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; font-weight: 600;">褐矮星和双漂浮行星</strong>：独特的天体，增强了我们对恒星和行星形成的理解。</span></li> </ul> <p>&nbsp;</p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;"><span style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;">参与该项目的杰森&middot;桑德斯博士（UCL物理与天文学）说：&ldquo;在过去的13年里，VVVX巡天一直在透过尘埃窥视我们银河系的中心，观察星星是如何变化的。恒星的运动揭示了这个以前神秘的区域和整个银河系的形成和演化的线索。</span></p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;">&nbsp;</p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;"><span style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;">领导整个项目的智利安德烈斯&middot;贝洛大学（Universidad Andr&eacute;s Bello）的天体物理学家但丁&middot;明尼蒂（Dante Minniti）教授说：&ldquo;我们有了如此多的发现，我们永远改变了银河系的观感。</span></p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;">&nbsp;</p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;"><span style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;">VISTA 拥有 4.1m 镜子，是世界上最大的专用红外巡天望远镜。它的红外相机 VIRCAM 可以透过弥漫在我们银河系中的尘埃和气体进行窥视。通过以比人眼可见的波长更长的波长进行观察，VISTA 能够研究在可见光下几乎看不见的物体，例如褐矮星（没有持续核聚变的&ldquo;失败&rdquo;恒星）或不围绕恒星运行的自由漂浮行星。</span></p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;">&nbsp;</p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;"><span style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;">一篇标志着VVV/VVVX巡天观测完成的论文已在<em style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;">《天文学与天体物理学</em>》杂志上发表。该文章由巴西圣卡</span><span style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;">塔琳娜联邦大学的 Roberto K. Saito 教授和智利安德烈斯贝洛大学 （UNAB） 的 Maren Hempel 教授领导，是来自 15 个国家的 146 位合著者的合作成果，详细介绍了这一广泛的数据集带来的众多发现。</span></p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;">&nbsp;</p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;"><span style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;">这些数据已经在南美洲和欧洲产生了 300 多篇科学出版物和 30 篇博士论文，涵盖了令人难以置信的主题，例如星系结构、恒星种群、变星、星团等等。</span></p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;">&nbsp;</p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;"><span style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;">伦敦大学学院的 Jason Sanders 博士和团队是这项最新研究的合著者，他们分析了恒星在天空中移动的速度，以及这告诉我们关于内星系结构的信息。他们还制作了该调查中最大的变星（亮度随时间变化的恒星）目录。</span></p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;">&nbsp;</p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;"><span style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;">VVV 和 VVVX 调查由 UNAB 的 Dante Minniti 教授和赫特福德大学的 Philip Lucas 教授领导。</span></p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;">&nbsp;</p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;"><span style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;">卢卡斯教授说：&ldquo;通过用红外线绘制银河系的地图，我们能够刺穿星际尘埃和气体的模糊面纱，这些尘埃和气体将我们的大部分银河系隐藏在可见光下。</span></p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;">&nbsp;</p> <p style="margin: 0px 0px 1.5em; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px; background-color: #ffffff; color: #000000; font-family: 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; white-space: normal;"><span style="margin: 0px; padding: 0px; border-width: 0px; outline-width: 0px; font-size: 16px; vertical-align: baseline; background-position: 0px 0px;">英国科学技术设施委员会通过其在英国天文技术中心 （UK ATC） 的团队，在开发和向 ESO 交付 VISTA 望远镜方面发挥了关键作用。VISTA 的交付也是英国成为 ESO 成员的主要部分。</span></p>