WISE J104915.57-531906

Image Credit:  NASA/JPL-Caltech/Gemini Observatory/AURA/NSF

사진 중앙에 보이는 천체는 NASA의 적외선 탐사선(Wide-field Infrared Survey Explorer, 이하 WISE)이 촬영한 태양으로부터 3번째로 가까운 별로서, WISE J104915.57-531906 이라고 명명된 천체이다.

 

이 천체는 하나의 별로 보이지만 칠레의 제미니 천문대에서 좀더 고해상도로 촬영한 결과(박스 부분) 한쌍의 갈색왜성으로 구성된 이중성계임이 확인되었다.

이는 거의 1세기만에 발견된 가장 가까운 이중별인 셈이다.

 

이 천체의 발견은 2013년 3월에 보고되었다.

 

출처 : NASA 제트추진연구소(JPL, Jet Propulsion Laboratory) Photo Journal
        http://photojournal.jpl.nasa.gov/catalog/PIA17992

 

참고 : WISE J104915.57-531906을 비롯한 각종 별들에 대한 포스팅은 아래 링크를 통해 조회할 수 있습니다. 
          https://big-crunch.tistory.com/12346972

 

원문>

PIA17992: Brown Dwarfs in our 'Backyard'

Original Caption Released with Image:

The third closest star system to the sun, called WISE J104915.57-531906, is at the center of the larger image, which was taken by NASA's Wide-field Infrared Survey Explorer (WISE). It appeared to be a single object, but a sharper image (inset) from Gemini Observatory in Chile, revealed that it was binary star system, consisting of a pair of brown dwarfs. This is the closest star system to be discovered in nearly a century. The discovery was announced in March, 2013.

NASA's Jet Propulsion Laboratory, Pasadena, Calif., manages and operates the recently activated NEOWISE asteroid-hunting mission for NASA's Science Mission Directorate. The results presented here are from the WISE all-sky survey mission, which operated before NEOWISE, using the same spacecraft, in 2010 and 2011. WISE was selected competitively under NASA's Explorers Program managed by the agency's Goddard Space Flight Center in Greenbelt, Md. The science instrument was built by the Space Dynamics Laboratory in Logan, Utah. The spacecraft was built by Ball Aerospace & Technologies Corp. in Boulder, Colo. Science operations and data processing take place at the Infrared Processing and Analysis Center at the California Institute of Technology, Pasadena. Caltech manages JPL for NASA.

More information is online at http://www.nasa.gov/wise and http://wise.astro.ucla.edu and http://www.jpl.nasa.gov/wise.

Image Credit: NASA/JPL-Caltech/Gemini Observatory/AURA/NSF
Image Addition Date: 2014-03-07