The Hubble Space Telescope has produced some of the most striking glimpses of distant objects mankind has ever seen, but one particular image has surprised researchers and continues to generate new insights.
It is an image composed of an area of space known as Hubble's Ultra-Deep Field, and took hundreds of hours to be produced using the telescope's Wide Field Camera 3. Observations revealed ancient galaxies dating back to 13.2 billion years, and it is the "deeper" image of space that exists. Now a new effort to mine the original images for additional detail has resulted in an even deeper view of that area of space.
In a new article published in Astronomy and AstrophysicsResearchers from the Canary Islands of Spain explained how they managed to find faint objects hidden in the original Hubble images that were not visible in the larger compound.
"What we did was to go back to the original footage file, directly as observed by the HST, and improve the combining process, aiming for the best image quality not only for the smaller, more distant galaxies but also for the more distant galaxies. regions of the largest galaxies, "said Alejandro S. Borlaff of the Canarian Astrophysics Institute (IAC) in a statement.
The resulting image looks a little strange when compared to the original compound, but it is easier to see the new light sources lurking their way out than it was before a black screen. These new "ultra-deep" images show objects farther away than the closest foreground galaxies, which were dated about 13.2 billion years ago.
The pipeline that the team used to detect hidden light sources could be used with other images from space and teach us even more about what is beyond.