Wednesday, May 27, 2020

Galaxy – XMM-2599: Dead Monster Galaxy in Distant Universe

Galaxy – XMM-2599

Ultra-Massive Giant Galaxy – XMM-2599

According to reports, astronomers are anxious regarding an ultra-massive giant galaxy which dates back to the ancient days of the universe. It has been named XMM-2599. Astronomers are of the opinion that the galaxies lived fast and died young. If one tends to gaze at the night sky with a telescope and see beyond the naked eye, they will see numerous stars which are in fact imposters. Several of these points of light are in fact galaxies which are a collection of millions and trillions of stars. Galaxies are formation of stars, dark matter and dust which are held together through gravity. Astronomers are uncertain on the formation of galaxies.

Some of the astronomers are of the opinion that gravity tends to pull dust and gas together for the formation of single star. These stars then have a tendency to draw closer into collection which eventually become galaxies. Several of the galaxies tend to have black holes towards the centre which produces a great amount of energy. This can be seen by the astronomers over great distances. A galaxy’s central black hole, in some instance is extremely big or active even in the case of comparatively small galaxies.

Galaxy – XMM-2599 in Existence – 2 Billion Years Ago

The giant galaxy XMM-2599 had been in existence around 12 billion years back. According to data and measurement astronomers taken, utilising W. M. Keck Observatory’s Multi-Object Spectrograph for Infrared Exploration, it has rapidly moulded into a bunch of stars and died. It is unknown why the galaxy seemed to die down. The astronomers have concluded that the cause of its death is unclear though there could be numerous possible explanations.

Its expiry seems surprising since the galaxy passed away during a time when the other galaxies seemed to be stirring out stars in enormous masses. The observatory is located in the proximity of the summit of the dormant Mauna Kea volcano in Hawaii. Benjamin Forrest, lead study author and postdoctoral researcher in the University of California, Riverside’s Department of Physics and Astronomy had commented that the galaxy had been in existence much before the universe was 2 billion years old and XMM-2599 had already moulded into a mass of over 300 billion suns, thus making it an ultra-massive galaxy.

Descendent –Population of High Star Formation

The galaxy at its peak had the capability of creating over 1,000 solar masses comprising of stars in a given year. This is considered to be an incredible high rate of formation of stars in comparison to its own galaxy, the Milky Way - its one new star each year. Strangely, XMM-2599 formed several of its stars in a massive state when the universe seemed to be less than a billion years old. By the time, the universe became 1.8 billion years old, it seemed to be inactive.

According to the opinion of Danilo Marchesini, study co-author and an associate professor of astronomy at Tufts University in Massachusetts, XMM-2599 could have been a descendent from a population of high star formation, dusty galaxies in the initial stage of the universe which the new infrared telescopes have recently revealed.

Galaxy – XMM-2599 Caught in Inactive Phase

However astronomers are uncertain on how the massive galaxy could have evolved. In comparison to the other known galaxies in size, this formation seems strange. XMM-2599, based on their models could still be forming stars. Gillian Wilson, professor of physics and astronomy at the University of California, Riverside Forrest informed the amazing fact that XMM-2599 seemed interesting and unusual since it had stopped forming stars probably due to its restriction in obtaining fuel or its black hole seemed to turn on.

He further added that results call for changes in how models turn off star formation in early galaxies. XMM-2599 has been caught in its inactive phase. Astronomers are now speculating on what would happen now that the galaxy is no longer forming stars anymore and is unable to lose mass. Wilson is contemplating that as time goes by, its gravitational attraction of nearby stars could help in formation of galaxies and end up being a bright city of galaxies.

Answers – Ultra Massive Giant Galaxy

It is essential to note that when we gaze at distant areas of space, we tend to peer back in time due to the time light it takes in reaching us and hence the giant galaxy has now met its fate A professor of astronomy and co-author at UC Irvine stated that this the result could be a strong possibility. Cooper commented that perhaps during the following 11.7 billion years of cosmic history, XMM-2599 would be the central member of one of the brightest and most massive clusters of galaxies in the local universe. Moreover, it could continue to exist in isolation.

Alternatively, we could have a scenario which would lie between these two results. The astronomers have been permitted additional time limit at the observatory in order to carry out their research on the complex galaxy. They are waiting in anticipation in discovering the answers to their various question with regards to the ultra-massive giant galaxy.

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