The Galactic Eyes of IC 2163 and NGC 2207: A Webb and Hubble Masterpiece
Prepare to be mesmerized by the celestial spectacle of galaxies IC 2163 and NGC 2207, brought to life through an extraordinary composite image by the NASA/ESA/CSA James Webb Space Telescope and the NASA/ESA Hubble Space Telescope. This image showcases a dramatic cosmic interaction, revealing the "galactic eyes" formed by these two spiral galaxies.
A Cosmic Graze and Starburst Ignition
The vibrant and unusual color palette of this image is a result of combining mid-infrared light data from Webb with visible and ultraviolet light from Hubble. These two galaxies, IC 2163 (the smaller spiral on the left) and NGC 2207 (the larger spiral on the right), engaged in a gravitational dance millions of years ago, with IC 2163 passing behind NGC 2207.
This close encounter has dramatically boosted their star formation rates. Together, they are estimated to be birthing the equivalent of two dozen Sun-sized stars annually. For perspective, our own Milky Way galaxy forms only about two to three new Sun-like stars each year.
Supernovae's Role in Stellar Genesis
Interestingly, both galaxies have experienced seven known supernovae. These cataclysmic stellar explosions may have played a crucial role in clearing out gas and dust within the galaxies' arms. This clearing action could have then allowed the remaining material to cool, creating ideal conditions for the formation of the many new stars we see, particularly in the bluest regions of the image.
Image Description
The image prominently features two overlapping spiral galaxies against a backdrop of the black expanse of space, sprinkled with foreground stars and distant galaxies. The smaller galaxy on the left, IC 2163, appears more compact than the larger galaxy on the right, NGC 2207.
Credit: NASA, ESA, CSA, STScI
This stunning visualization offers a glimpse into the dynamic processes that shape galaxies and drive the birth of stars, reminding us of the awe-inspiring power and beauty of the universe.
