NASA makes awesome discovery of ‘exotic barred galaxy’ with Hubble telescope | Science | News

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The image was captured by the Hubble’s Wide Field Camera 3

The Hubble’s Wide Field Camera 3 photographed the galaxy named UGC 6093, it has beautiful arms that swirl outwards from a bar slicing through the galaxy’s centre – which is known as a barred galaxy.

It is classified as an active galaxy which means it hosts an active galactic nucleus, which is a region at a galaxy’s centre within which matter is sucked into a super black hole.

As the black hole swallows up the material it emits intense radiation, which causes it to shine brightly.

On their website, NASA said: “UGC 6093 is more exotic still. The galaxy essentially acts as a giant astronomical laser that also spews out light at microwave, not visible, wavelengths — this type of object is dubbed a megamaser (maser being the term for a microwave laser).

“Megamasers such as UGC 6093 can be some 100million times brighter than masers found in galaxies like the Milky Way.”

Hubble’s WFC3 observes light spanning a range wavelengths, from near-infrared, through the visible range, and near-ultraviolet.

It has two channels that detect and process different light which allows astronomers to study a remarkable range of astrophysical phenomena.

For example, the UV-visible channel studies galaxies going through a massive star formation, while near-infrared channel can study redshifted light from galaxies in the distant universe.

These allow Hubble to study megamaser galaxies and untangle their awesome complexity.

The discovery comes after the discovery of two huge galaxies merging in a distant part of the universe which has left experts wondering how galaxies actually form.

Astronomers used the Atacama Large Millimetre/submillimeter Array (ALMA) in Chile to find the galaxies which began to form just 780 million years after the universe came into existence.

Dan Marrone, an associate professor of astronomy at the University of Arizona in Tucson and lead author of the new paper, said: “With these exquisite ALMA observations, astronomers are seeing the most massive galaxy known in the first billion years of the universe in the process of assembling itself.

“We usually view that as the time of little galaxies working hard to chew away at the neutral intergalactic medium.

“Mounting observational evidence with ALMA, however, has helped to reshape that story and continues to push back the time at which truly massive galaxies first emerged in the universe.”

NASA space scienceGETTY

As the black hole swallows up the material it emits intense radiation

In the dawn of time when stars were beginning to form, many grouped together thanks to gravity to create “dwarf galaxies”.

Over the past 13billion years or so, stars have added to these galaxies to make them as big as what we see today.

However, the discovery of two monster galaxies merging suggests that large galaxies formed a lot faster than experts had previously thought, leading astronomers to rethink the theory.

Around the same time in the early universe, dark matter, which is an unknown form of matter that accounts for roughly a quarter of all matter in the universe, began to form and bring galaxies together.

NASA space science GETTY

The discovery comes as after the discovery of two huge galaxies merging in a distant part of space

ALMA officials said in a statement that the galaxies will one day complete their merger and become “the largest galaxy ever observed at that period in cosmic history.

“This discovery provides new details about the emergence of large galaxies and the role that dark matter plays in assembling the most massive structures in the universe.”

Joaquin Vieira, a co-author of the study and astronomy professor at the University of Illinois, said: “Our hope is to find more objects like this, possibly even more distant ones, to better understand this population of extreme dusty galaxies and especially their relation to the bulk population of galaxies at this epoch.”

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