[ad_1]
NGC 7773 is a fine example of a barred spiral galaxy. A luminous bar-shaped structure clearly crosses the bright core of the galaxy, extending to the inner boundary of the spiral arms of NGC 7773. Astronomers believe that these bar structures appear later in the life of a galaxy. Credit: ESA / Hubble & NASA, J. Walsh
The WFC3 (Wide Field Camera 3), a powerful instrument installed on the telescope in 2009, was taken from this striking image by NASA / ESA. The WFC3 is at the origin of many breathtaking and iconic Hubble photographs.
NGC 7773 is a fine example of a barred spiral galaxy. A luminous bar-shaped structure clearly crosses the bright core of the galaxy, extending to the inner boundary of the spiral arms of NGC 7773. Astronomers believe that these bar structures will appear later in the life of a galaxy, as the material forming the star advances towards the galactic center – the younger spirals do not feature barred structures as often as older spirals, suggesting that the bars are a sign of maturity. It is also thought that they act as stellar nurseries, while they shine brightly with a large number of young stars.
Our galaxy, the Milky Way, is considered a barred spiral like that of NGC 7773. By studying galactic specimens such as NGC 7773 in the universe, researchers hope to learn more about the processes that have shaped and continue to shape our world. cosmic dwelling. .
Image: Hubble's barred and burgeoning spiral galaxy
Quote:
Image: A mature galaxy mesmerizing in Hubble's new view (June 7, 2019)
recovered on June 7, 2019
at https://phys.org/news/2019-06-image-mature-galaxy-mesmerizes-hubble.html
This document is subject to copyright. Apart from any fair use for study or private research purposes, no
part may be reproduced without written permission. Content is provided for information only.
[ad_2]
Source link