Hubble captures elusive, irregular galaxy

Hubble captures elusive, irregular galaxy
As an irregular galaxy, IC 10 lacks the majestic shape of spiral galaxies such as the Milky Way, or the rounded, ethereal appearance of elliptical galaxies. It is a faint object, despite its relative proximity to us of 2.2 million light-years. In fact, IC 10 only became known to humankind in 1887, when American astronomer Lewis Swift spotted it during an observing campaign. The small galaxy remains difficult to study even today, because it is located along a line-of-sight which is chock-full of cosmic dust and stars. Credit: NASA, ESA and F. Bauer

This image shows an irregular galaxy named IC 10, a member of the Local Group—a collection of over 50 galaxies in our cosmic neighborhood that includes the Milky Way.

IC 10 is a remarkable object. It is the closest-known , meaning that it is undergoing a furious bout of star formation fueled by ample supplies of cool hydrogen gas. This gas condenses into vast molecular clouds, which then form into dense knots where pressures and temperatures reach a point sufficient to ignite , thus giving rise to new generations of stars.

As an irregular galaxy, IC 10 lacks the majestic shape of spiral galaxies such as the Milky Way, or the rounded, ethereal appearance of elliptical . It is a faint object, despite its relative proximity to us of 2.2 million light-years. In fact, IC 10 only became known to humankind in 1887, when American astronomer Lewis Swift spotted it during an observing campaign. The small galaxy remains difficult to study even today, because it is located along a line-of-sight which is chock-full of cosmic dust and stars.

A version of this image was entered into the Hubble's Hidden Treasures image processing competition by contestant Nikolaus Sulzenauer, and went on to win 10th prize.


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Citation: Hubble captures elusive, irregular galaxy (2019, June 21) retrieved 24 July 2019 from https://phys.org/news/2019-06-hubble-captures-elusive-irregular-galaxy.html
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Jun 21, 2019
There are some very complicated issues of galaxy formation. Unfortunately, here is the same problem as with the stars. The origin of galaxies remains unclear, in spite of huge activity in the field. What the "formation" means? It means that we have the material that is assembling into galaxies.
https://www.acade...ome_From
https://www.acade...rvations

Jun 23, 2019
Don't give us links where you have to sign in to crap.

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