Space

Webb, Hubble Team Up to Trace Interstellar Dust Within a Galactic Pair

By Aazam

Near-infrared light from Webb and ultraviolet and visible light from Hubble are combined to create this image of the galaxy pair VV 191

The most recent addition to a tiny group of galaxies that allow scientists like us to directly compare the characteristics of galactic dust is VV 191

From over 2,000 superimposed galaxy pairs found by Galaxy Zoo participants, this target was chosen

We always seek to detect the presence of dust grains since they are partly responsible for the development of new stars and planets

Due to the elliptical foreground galaxy's gravitational pull, the light from this very distant galaxy is distorted, duplicating its appearance.

These red and feeble pictures of the lensed galaxy were missed by Hubble, but are clearly visible in Webb's near-infrared image.

While appearing in very different colors, two patchy spirals to the upper left of the elliptical galaxy have equal apparent diameters.

Additional information was contributed from GO 15106 and the Hubble STARSMOG snapshot programme

Giovanni Ferrami and Stuart Wyithe, both from the University of Melbourne in Australia and ASTRO 3D in Australia, carried out the thorough gravitational-lensing analysis

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