HD 61005 的恒星圈

  图像提供:  X-ray: NASA[1] / CXC[2] / Johns Hopkins Univ.[3] / C.M. Lisse et al.; Infrared: NASA[4] / ESA[5] / STIS[6]; Optical: NSF[7] / NoirLab[8] / CTIO[9] / DECaPS2[10] 

  Processing:  NASA[11] / CXC[12] / SAO / N. Wolk - 文稿:  Cecilia Chirenti[13] (NASA[14] GSFC[15], UMCP[16], CRESST II[17])  

 说明： 年轻的恒星会吹泡泡吗？ 大视野照片展示了位于智利托洛洛山美洲天文台[18]观测到的星场，而内嵌小图则聚焦 HD 61005[19]，这颗恒星与我们的太阳[20]相似，距离地球仅约 120 光年[21]之遥。 HD 61005 比太阳 更年轻[22] ，年龄仅约 1 亿年。它吹出高速且高密度的恒星风[23]，将环绕周围[24]较冷的尘埃和气体推开，形成一个被称为恒星圈 (astrosphere) 的泡泡。 这个由恒星吹出的泡泡是由 NASA 的钱卓X光观测卫星[25] 侦测[26]到，其直径约为 200 个 日地距离，也就是天文单位[27]。 我们的太阳也有一个泡泡，称为 日球层[28]，它能 保护[29]行星免受 宇宙辐射[30]的侵害。 小图中还显示了哈伯太空望远镜[31]观测到的恒星形成后留下的碎屑[32]。 它们看起来像翅膀[33]，因此这颗恒星有了飞蛾[34]的暱称。 

  明日的图片： moontrail[35] 

  Authors & editors:  Robert Nemiroff[36] (MTU[37]) & Jerry Bonnell[38] (UMCP[39])

 NASA Official:  Amber Straughn Specific rights apply[40].

 NASA Web Privacy[41], Accessibility[42], Notices[43]; 

 A service of: ASD[44] at NASA[45] / GSFC[46], 

 NASA Science Activation[47] 

& Michigan Tech. U.[48]

 太空天文实验室（成功大学物理系） 

  <br/> 编辑：<a href="mailto:hantzong.su@gmail.com" style="color:gray;" target="_blank">苏汉宗</a>  

 编辑：陈炳志[49]

[1]https://www.nasa.gov/

[2]https://cxc.harvard.edu/

[3]https://www.jhu.edu/

[4]https://www.nasa.gov/

[5]https://www.esa.int/

[6]https://www.stsci.edu/hst/instrumentation/stis

[7]https://www.nsf.gov/

[8]https://noirlab.edu/public/

[9]https://noirlab.edu/public/programs/ctio/

[10]https://datalab.noirlab.edu/data/decaps

[11]https://www.nasa.gov/

[12]https://cxc.harvard.edu/

[13]https://science.gsfc.nasa.gov/sci/bio/cecilia.bertonimarthahadlerchirenti

[14]https://www.nasa.gov/

[15]https://www.nasa.gov/goddard/

[16]https://www.astro.umd.edu/people/cecilia-chirenti

[17]https://cresst2.umd.edu/

[18]https://noirlab.edu/public/programs/ctio/

[19]https://en.wikipedia.org/wiki/HD_61005

[20]https://science.nasa.gov/sun/

[21]https://www.youtube.com/watch?v=MX3PIkbTQwQ

[22]https://spaceplace.nasa.gov/sun-age/en/

[23]https://esahubble.org/wordbank/stellar-wind/

[24]https://en.wikipedia.org/wiki/Interstellar_medium

[25]https://www.nasa.gov/mission/chandra-x-ray-observatory/

[26]https://chandra.si.edu/press/26_releases/press_022326.html

[27]https://en.wikipedia.org/wiki/Astronomical_unit

[28]https://science.nasa.gov/heliophysics/focus-areas/heliosphere/

[29]http://apod.nasa.gov/apod/ap120908.html

[30]https://www.iaea.org/newscenter/news/cosmic-radiation-why-we-should-not-be-worried

[31]https://science.nasa.gov/mission/hubble/

[32] https://science.nasa.gov/missions/hubble/hubble-surveys-debris-strewn-exoplanetary-construction-yards/

[33]https://free-images.com/lg/df34/pelikan_wing_span_water.jpg

[34]https://science.nasa.gov/asset/hubble/hubble-catches-a-dusty-moth/

[35]http://apod.nasa.gov/apod/ap260307.html

[36]http://www.phy.mtu.edu/faculty/Nemiroff.html

[37]http://www.phy.mtu.edu/

[38]https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html

[39]http://www.astro.umd.edu/

[40]http://apod.nasa.gov/apod/lib/about_apod.html#srapply

[41]https://www.nasa.gov/about/highlights/HP_Privacy.html

[42]https://www.nasa.gov/general/accessibility/

[43]https://www.nasa.gov/privacy/

[44]https://astrophysics.gsfc.nasa.gov/

[45]https://www.nasa.gov/

[46]https://www.nasa.gov/centers/goddard/

[47]https://science.nasa.gov/learners

[48]http://www.mtu.edu/

[49]mailto:alfred@ncku.edu.tw

http://apod.nasa.gov/apod/ap260306.html

http://sprite.phys.ncku.edu.tw/astrolab/mirrors/apod/ap260306.html