NASA 02月19日
HH 30: A Star System with Planets Now Forming
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詹姆斯·韦伯太空望远镜与哈勃及地球上的ALMA协同观测,在原行星系统Herbig-Haro 30中发现了新的线索,揭示了恒星和行星的形成过程。观测结果表明,较大的尘埃颗粒更集中在中心盘中,有利于行星的形成。韦伯拍摄的图像展示了HH-30系统的多个特征:垂直喷射的粒子流(红色),横跨中心的富含尘埃的暗盘阻挡了中心恒星的光芒,以及在中心盘上下方呈现的抛物线状蓝色反射尘埃。研究HH 30中的行星形成过程,有助于天文学家更好地理解包括地球在内的太阳系行星的形成。

🔭HH 30是一个活跃的原行星系统,其中心区域存在一个富含尘埃的暗盘,该暗盘阻挡了中心恒星或多颗恒星的光芒,暗示着行星正在该区域形成。

🚀从HH 30系统垂直喷射出高速粒子流,这些喷流在图像中呈现为红色,表明该系统内部存在着剧烈的活动,这与恒星和行星的形成过程密切相关。

🌌在中心盘的上下方观察到抛物线状的蓝色反射尘埃,这种现象可能与中心恒星发出的光被尘埃颗粒散射有关,但左下方出现的尾状结构的原因尚不清楚,有待进一步研究。

Astronomy Picture of the Day Discover the cosmos!Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer.2025 February 19 HH 30: A Star System with Planets Now Forming Image Credit: James Webb Space Telescope, ESA, NASA & CSA, R. Tazaki et al. Explanation: How do stars and planets form?New clues have been found in the protoplanetary system Herbig-Haro 30 by the James Webb Space Telescope in concert with Hubble and the Earth-bound ALMA. The observations show, among other things, that large dust grains are more concentrated into a central disk where they can form planets.The featured image from Webb shows many attributes of the active HH-30 system.Jets of particles are being expelled vertically, shown in red, while a dark dust-rich disk is seen across the center, blocking the light from the star or stars still forming there.Blue-reflecting dust is seen in a parabolic arc above and below the central disk, although why a tail appears on the lower left is currently unknown.Studying how planets form in HH 30 can help astronomers better understand how planets in our own Solar System once formed, including our Earth. Tomorrow's picture: M87 <| Archive| Submissions | Index| Search| Calendar| RSS| Education| About APOD| Discuss| > Authors & editors: Robert Nemiroff(MTU) &Jerry Bonnell (UMCP)NASA Official: Amber StraughnSpecific rights apply.NASA Web Privacy,Accessibility, Notices; A service of:ASD atNASA /GSFC, NASA Science Activation& Michigan Tech. U.

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HH 30 行星形成 詹姆斯·韦伯太空望远镜
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