哈勃发现了一对相互作用的星系

使用NASA / ESA Hubble Space Telescope拍摄的新图像提供了Galaxy对ARP 86的详细外观。

This composite image shows two interacting galaxies NGC 7752 and NGC 7753, collectively known as Arp 86. The image is composed of infrared, optical and ultraviolet observations from Hubble’s Advanced Camera for Surveys (ACS), the Dark Energy Camera (DECam) on the Victor M. Blanco 4-m Telescope, and the Sloan Digital Sky Survey (SDSS). Nine filters were used to sample various wavelengths. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / Dark Energy Survey / J. Dalcanton.

This composite image shows two interacting galaxies NGC 7752 and NGC 7753, collectively known as Arp 86. The image is composed of infrared, optical and ultraviolet observations from Hubble’s Advanced Camera for Surveys (ACS), the Dark Energy Camera (DECam) on the Victor M. Blanco 4-m Telescope, and the Sloan Digital Sky Survey (SDSS). Nine filters were used to sample various wavelengths. The color results from assigning different hues to each monochromatic image associated with an individual filter. Image credit: NASA / ESA / Hubble / Dark Energy Survey / J. Dalcanton.

ARP 86.位于大约21700万光年远离Pegasus的星座。

该系统是组成两个星系:一个是名为NGC 7752的棒旋星系,另一个是名为NGC 7753的棒透镜星系。

NGC 7752远小于NGC 7753,显然附在NGC 7753的螺旋臂中。

“对于NGC 7752来说,这两个星系之间的引力争论注定会以灾难性的方式结束,”哈勃望远镜的天文学家说。

“最终将被抛弃进入同时性空间或者完全被其较大的邻居吞噬。”

天文学家们利用哈勃望远镜观测了Arp 86系统,作为一项更大的努力的一部分,以了解年轻恒星和它们形成的冷气体云之间的联系。

他们说:“哈勃望远镜观测到了星团、气体云和尘埃云,它们分布在附近的各个星系中。”

“结合ALMA的测量数据,哈勃的这些观测为天文学家了解恒星是如何诞生的提供了宝贵的数据。”

“这些观察结果还通过即将到来的空间望远镜,NASA / ESA James Webb Space Telescope帮助播种了未来研究的种子,”他们补充说。

“这张望远镜由于今年晚些时候推出,将在尘土飞扬地区(如ARP 86的星系)上学习星形。

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