File:Hubble Spots a Secluded Starburst Galaxy (28292060866).jpg

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This image was taken by the Hubble Space Telescope’s Advanced Camera for Surveys (ACS) and shows a starburst galaxy named MCG+07-33-027. This galaxy lies some 300 million light-years away from us, and is currently experiencing an extraordinarily high rate of star formation — a starburst. Normal galaxies produce only a couple of new stars per year, but starburst galaxies can produce a hundred times more than that. As MCG+07-33-027 is seen face-on, the galaxy’s spiral arms and the bright star-forming regions within them are clearly visible and easy for astronomers to study.

In order to form newborn stars, the parent galaxy has to hold a large reservoir of gas, which is slowly depleted to spawn stars over time. For galaxies in a state of starburst, this intense period of star formation has to be triggered somehow — often this happens due to a collision with another galaxy. MCG+07-33-027, however, is special; while many galaxies are located within a large cluster of galaxies, MCG+07-33-027 is a field galaxy, which means it is rather isolated. Thus, the triggering of the starburst was most likely not due to a collision with a neighboring or passing galaxy and astronomers are still speculating about the cause. The bright object to the right of the galaxy is a foreground star in our own galaxy.

Image credit: ESA/Hubble & NASA and N. Grogin (STScI) Text credit: European Space Agency

View the NASA release <a href="https://www.nasa.gov/image-feature/goddard/2016/hubble-spots-a-secluded-starburst-galaxy" rel="nofollow">here</a>.
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Source Hubble Spots a Secluded Starburst Galaxy
Author NASA Hubble Space Telescope

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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by NASA Hubble at https://flickr.com/photos/144614754@N02/28292060866 (archive). It was reviewed on 13 July 2018 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0.

13 July 2018

Public domain This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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current15:42, 13 July 2018Thumbnail for version as of 15:42, 13 July 20181,041 × 674 (69 KB)Hiàn (alt) (talk | contribs)Transferred from Flickr via #flickr2commons

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