Hubble observes a barred galaxy and newborn stars in a new image

Hubble observes a barred galaxy and newborn stars in a new image
Hubble observes a barred galaxy and newborn stars in a new image
Anonim

The galaxy in this image from the NASA / ESA Hubble Space Telescope is a barred spiral galaxy known as NGC 7541, which lies in the direction of the constellation Pisces.

A barred spiral galaxy is a type of galaxies with spiral arms swirling toward the center and a bright core through which a bar of gas and stars passes. This bar, passing directly through the center of the galaxy, is presumably a zone with increased star-forming activity, where the processes leading to the formation of billions of new stars are intensified. The fuel for these stars is a relatively cold gas, the density of which is especially high in the central zone of the bulkhead. In other zones of the galaxy, similar processes can proceed with a much lower intensity. It is believed that about two-thirds of all spiral galaxies in the Universe contain barriers.

In the galaxy NGC 7541, in fact, a much higher than usual star formation rate is observed, which is a vivid confirmation of the hypothesis about the key role of barriers of spiral galaxies in the formation of new stars. The bar allows material and "fuel" to pass to the center of the galaxy for the formation of newborn stars. NGC 7541 and nearby companion galaxy NGC 7537 are part of a pair of galaxies located approximately 110 million light-years from Earth.

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