하나처럼 보이는 두 개 은하의 가장무도회

 

Image Credit:
NASA/JPL-Caltech/NRAO/SDSS/NOAO/University of Manitoba

 

지구를 향해 모서리를 드러내고 있는 UGC 10288 은하는 이전 관측에서는 하나의 천체로 관측되었다.

 

그러나 NRAO의 얀스키 대형 배열 전파 망원경(the NRAO's Jansky Very Large Array, VLA)이 관측한 새로운 라디오파 데이터를 통해
UGC 10288로부터 수직으로 뻗어나오는 거대한 전체를 밝혀냈으며 이는 실재로는 라디오파 제트를 동반한 훨씬 멀리 떨어진 은하임이 밝혀졌다.

 

앞쪽에 위치한 UGC 10288의 사진은 가시광선과 적외선 그리고 라디오파에 걸쳐 획득된 데이터를 통해 만들어진 것이다.
라디오파는 파란색으로 그리고 NASA의 스피처 우주망원경과 광대역 적외선 탐사 위성(Wide-field Infrared Survey Explorer, WISE)이 관측한 데이터는
각각 노란색과 오렌지색으로 표현되어 있다.

 

가시광선 데이터는 SDSS로부터 취득된 것으로 자청색으로 표시되었으며 별빛을 보여주고 있다.

그리고 키트 피크 국립 천문대에서 취득한 가시광 데이터는 장미색으로 표시되어 있으며 가열된 가스를 보여주고 있다.

 

출처 : NASA 제트추진연구소(JPL, Jet Propulsion Laboratory) Photo Journal
         http://photojournal.jpl.nasa.gov/catalog/PIA17556

 

 

원문>

PIA17556: Two Galaxies Masquerading as one  

Original Caption Released with Image:

The edge-on spiral galaxy UGC 10288 appeared to be a single object in previous observations. However, new detailed radio data from the NRAO's Jansky Very Large Array (VLA) revealed that the large perpendicular extension of UGC 10288's halo (blue) is really a distant background galaxy with radio jets.

This image of UGC 10288 in the foreground is created with data spanning optical, infrared and radio energies. Radio data are blue, and infrared observations from NASA's Spitzer Space Telescope and Wide-field Infrared Survey Explorer (WISE) are yellow and orange, respectively. Optical data from the Sloan Digital Sky Survey are purplish blue and show starlight; and optical data from the Kitt Peak National Observatory are rose and show heated gas.

The image was produced by Jayanne English of the University of Manitoba, Winnipeg, Canada; Judith Irwin of Queen's University in Kingston, Canada; Richard Rand of the University of New Mexico, Albuquerque and collaborators.

NASA's Jet Propulsion Laboratory, Pasadena, Calif., manages the Spitzer Space Telescope mission for NASA's Science Mission Directorate, Washington. Science operations are conducted at the Spitzer Science Center at the California Institute of Technology in Pasadena. Data are archived at the Infrared Science Archive housed at the Infrared Processing and Analysis Center at Caltech. Caltech manages JPL for NASA.

For more information about Spitzer, visit http://spitzer.caltech.edu and http://www.nasa.gov/spitzer.

NASA's Jet Propulsion Laboratory, Pasadena, Calif., manages, and operated WISE for NASA's Science Mission Directorate. The spacecraft was put into hibernation mode after it scanned the entire sky twice, completing its main objectives. Edward Wright is the principal investigator and is at UCLA. The mission 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 in Pasadena. Caltech manages JPL for NASA.

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

Image Credit:

NASA/JPL-Caltech/NRAO/SDSS/NOAO/University of Manitoba

Image Addition Date:

2013-11-14