2025年5月28日
Herbig-Haro 24
Image Credit: NASA, ESA, Hubble Heritage (STScI / AURA) / Hubble-Europe Collaboration
Acknowledgment: D. Padgett (GSFC), T. Megeath (University of Toledo), B. Reipurth (University of Hawaii)
Explanation: This might look like a double-bladed lightsaber, but these two cosmic jets actually beam outward from a newborn star in a galaxy near you. Constructed from Hubble Space Telescope image data, the stunning scene spans about half a light-year across Herbig-Haro 24 (HH 24), some 1,300 light-years or 400 parsecs away in the stellar nurseries of the Orion B molecular cloud complex. Hidden from direct view, HH 24’s central protostar is surrounded by cold dust and gas flattened into a rotating accretion disk. As material from the disk falls toward the young stellar object, it heats up. Opposing jets are blasted out along the system’s rotation axis. Cutting through the region’s interstellar matter, the narrow, energetic jets produce a series of glowing shock fronts along their path.
Tomorrow’s picture: open space
HH 24
影像提供: NASA, ESA, Hubble Heritage (STScI / AURA) / Hubble-Europe Collaboration
致谢: D. Padgett (GSFC), T. Megeath (University of Toledo), B. Reipurth (University of Hawaii)
说明: 乍看这或许像是一把双刃光剑，但这二道从新诞生恒星射出的宇宙喷流，出现在我们附近的星系之内。这幅建构自哈勃太空望远镜影像数据的景象，位于距离约1,300光年（约400秒差距）的猎户B分子云复合体之恒星诞生区内，影像则涵盖了赫比格-哈罗24（HH 24）周围宽约半光年的区域。隐不可见的HH 24之中心原恒星，周围旋绕着由低温尘埃和云气所构成的扁平拱星盘。随着物质掉向这个年轻天体，它会持续升温。这二道沿此系统旋转轴喷出的喷流，穿过这个区域的星际物质，而狭窄的高速喷流在所通过之路径上，形成了一系列明亮的激波前沿。
明日的图片: open space
