美元走强、收益率差距扩大，加元承压走弱

yun2026

美元走强、收益率差距扩大，加元承压走弱

2026年10月，天文学家利用韦布空间望远镜和斯皮策望远镜的历史数据，研究年轻恒星周围异常富含温暖尘埃的碎屑盘，希望寻找岩质天体剧烈碰撞留下的线索。团队汇集21个系统进行分析，把尘埃的矿物组成、颗粒大小和亮度变化联系起来，比较这些环境的形成过程。

研究发现，这类极端碎屑盘通常含有较小颗粒、大量温暖尘埃，并呈现不规则的亮度变化。通过中红外光谱，团队进一步将样本分为富含二氧化硅和相对缺少二氧化硅两类，用于判断产生碎屑的碰撞可能具有怎样的条件。类似研究有助于理解年轻行星系统中物质如何重新分配，也为讨论早期地球与月球形成所涉及的撞击提供参照。不过，望远镜观测到的是尘埃和辐射留下的结果，并非直接拍摄到行星相撞。不同矿物特征需要结合模型解释，团队也将继续通过更多样本检验这些特殊碎屑盘为何较少被发现。

https://lightroom.adobe.com/shares/7daefd925824c84485c3e4fd1010bf87
https://lightroom.adobe.com/shares/89f895622379ca4f94c3cd86b71d222e
https://lightroom.adobe.com/shares/85837d7baae6d148b7ed0d6c5410b8d4
https://lightroom.adobe.com/shares/66703b62719ccd4d9b09b6ef6b554fd0
https://lightroom.adobe.com/shares/f8b61ef9f0b62046a5383b18332b8827
https://lightroom.adobe.com/shares/fbb7d011b013c14c896d679b3718e549
https://lightroom.adobe.com/shares/c8979f3d6b38104fb1db69bae7aca214
https://lightroom.adobe.com/shares/30de767b03e94247975605f2d4dea490
https://lightroom.adobe.com/shares/369272e3b13ce3488c8c7307feda16c2
https://lightroom.adobe.com/shares/f855c2389224b94fb2313ad39ce43a4f
https://lightroom.adobe.com/shares/668568e696cf6d4891b946709296e3d8
https://lightroom.adobe.com/shares/0ef1d2585ec93549919a0546ba131a7f
https://lightroom.adobe.com/shares/a9cabfcb5b642247bb743ff05f550485
https://lightroom.adobe.com/shares/5b25ae1836cc244792dfc1af4633b01f
https://lightroom.adobe.com/shares/016520cede076c46bef42e9b6f2448e7
https://lightroom.adobe.com/shares/661ece1fffb57c449d080f034f6040a0
https://lightroom.adobe.com/shares/2cf809b991194f41a190d119927e86a2
https://lightroom.adobe.com/shares/b1e9db94695a1540b73f4e2de0cff62c
https://lightroom.adobe.com/shares/ed0b103eb2335b4ca773db7c29051920
https://lightroom.adobe.com/shares/db7510523900d148b7c8ea09160cf180
https://lightroom.adobe.com/shares/924b87acf01af648884d683599d4aed2
https://lightroom.adobe.com/shares/59880f21f035f14a87ae0a81c6425a48
https://lightroom.adobe.com/shares/894f2d7a3ea5f64c84993c7d42672cf5
https://lightroom.adobe.com/shares/b9dd515d889a8d4ca542e6301c58f492
https://lightroom.adobe.com/shares/8cfea9dcb50a8f4c910eb205d1787240
https://lightroom.adobe.com/shares/2317a4208aeddc4d99ce5dae026312a2
https://lightroom.adobe.com/shares/f36df71e91ff6e4eb4b61c0c129951df
https://lightroom.adobe.com/shares/20358ed9c42b6346bb32ec1d96388e03
https://lightroom.adobe.com/shares/c7a5a8e0e6f1ed4092b8670fde46a5cd
https://lightroom.adobe.com/shares/ded744e75b93594a826b39185ca9b2c1
https://lightroom.adobe.com/shares/c60de09cce963f4c88e293451c4f06b6
https://lightroom.adobe.com/shares/fb800e722cdde44ab9f5d37f6117905d
https://lightroom.adobe.com/shares/3c56bcaafdaa01438382fd4155206cee
https://lightroom.adobe.com/shares/b8778a7d33c5d24aaab422b6be057fe3
https://lightroom.adobe.com/shares/8309673d608bee48a380a65d4f7be9ff
https://lightroom.adobe.com/shares/a58dad09c6351f48ba5e7852b73237ff
https://lightroom.adobe.com/shares/e259bcf4c241544da596be32e301979d
https://lightroom.adobe.com/shares/3c7085b28cbe0f4f994aa66a0d836de5
https://lightroom.adobe.com/shares/af96571ae1aaf842a4ddfff6b7c3f9bb
https://lightroom.adobe.com/shares/195fee70c72a8f4f833f449f8334c4e3
https://lightroom.adobe.com/shares/d9a64b9f0796b840b0491ce4c892364a
https://lightroom.adobe.com/shares/c24c3c9b2d120d4c977f19594efdb0f1
https://lightroom.adobe.com/shares/e838e46f10c6a44bb570b3d8ef3baf3c
https://lightroom.adobe.com/shares/33825e1e0303fd42866c7519457d9add
https://lightroom.adobe.com/shares/fa66002f61073842a68371a30767e84c
https://lightroom.adobe.com/shares/57d1e6438e3b53419bd36c64ed0146d2
https://lightroom.adobe.com/shares/f60df18a53a9bb4799da7b4b22e6331c
https://lightroom.adobe.com/shares/693bfef1a8277b479dfce96af63ae502
https://lightroom.adobe.com/shares/650700f67b928742943961071fa15902
https://lightroom.adobe.com/shares/f135cf5e0efd934b8c89b70374bf9a83