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Black holes, galactic fountains and a big bang star: this week in space

A composite image showing the gaseous gas flow driven by the super massive black hole in the central galaxy. CREDIT:…


A composite image showing the gaseous gas flow driven by the super massive black hole in the central galaxy.

CREDIT: ALMA, Tremblay et al .; NRAO / AUI / NSF, B. Saxton; NASA / Chandra; ESO / V

(CNN) – This week, scientists speculated that an interstellar object called “Oumuamua” could be a strange probe due to how it was accelerated by our solar system when it blinked past last year.

Parker Solar Probe goes well despite its first close brush with the sun, 15 million miles from its surface, after going closer to our star than any spacecraft has gone. Mars Curiosity Rover only took a nice long drive along the Mars surface, the longest after a computer disturbance in September. And the possibility, the second rover on Mars, is still sad.

Here’s what you missed in space this week.

Galactic fountain

This is a fountain you do not want to record, but it’s beautiful to see.

Over a billion light years from the earth draws a black hole in the middle of the giant elliptical Abell 2597 galaxy in cold molecular gas and sprays it again in a jet or fountain-like manner. Observations from the Atacama Large Millimeter / submillimeter Array of Telescopes and the European Southern Observatory’s Very Large Telescope were published this week in The Astrophysical Journal.

This process is judged to repeat over and over again. The cold gas falls into the black hole, ignites the black hole and it starts rays of glowing plasma in space. But the plasma can not escape the weight of the galaxy, so it rains back into the black hole.

“The evolution of the galaxy can be quite chaotic and big galaxies like this tend to live hard and die young,” said Timothy Davis of Cardiff University School of Physics and Astronomy. “For the first time, we have been able to observe the whole cycle of a super massive black-necked fountain that seems to regulate this process, extending the lives of the galaxies.”

Black holes join

We know that galaxies join together forming larger galaxies, but for the first time, astronomers actually observed several pairs of galaxies when they came together. And they could see super massive black holes in the center of these galaxies came together to form a giant black hole.

The research was published in the newspaper Nature this week.

“See the pairs of fusion galaxies associated with these big black holes so close together was pretty amazing,” said Michael Koss, researcher at Eureka Scientific. “In our study, we see two galaxy cores directly when the images were taken. You can not argue with it; it’s a very” clean “result that is not based on interpretation.”

Archive images from the Hubble Space Telescope as well as high resolution images taken by WM Keck Observatory’s adaptive optical system, gave the amazing first appearance

This is probably what happens 4 billion years from when our Winter Street galaxies with its neighboring Andromeda galaxy.

Death of a Galaxy

A nearby galaxy called Small Magellanic Cloud is just a fraction of the magnitude of the Winter Street – and it loses the power it uses to form stars.

Fine details provided by radio images from the Australian SKA Pathfinder telescope, published in a Nature Astronomy study this week, show the galaxy’s passing as it loses gas.

“Galaxies that end up forming stars gradually fade away in oblivion. It’s a slow death for a galaxy if it loses all its gas,” said Naomi McClure-Griffiths from the Australian National University Research School of Astronomy and Astrophysics.

Eventually, the astronomers believe it will be eaten by Milky Way.

Flock of stars

These stars are a bit of a wild duck. Meet the Wild Duck Cluster, where 2 900 stars live together.

Astronomers thought open clusters of stars would contain only stars coming from the same generation. But the Wild Duck cluster has bright stars in different colors, indicating that they are different ages. Blue stars are usually younger, and red stars are usually older.

However, in a new study, researchers realized that the open cluster was playing a nap on them. How they rotate cause them to appear as different ages and colors.

Their rotation gives rise to their wavelength to pinch when one side of the star faces the earth, distorting the light as they release and make them turn blue or red.

A star long ago

Astronomers have found what may be one of the world’s oldest stars, which means it is made of material originally released from the storängen. The 13.5 billion year old star is small, with low mass and low metal content, which may be an indication of the very first stars ever born.

The earliest stars had been full of elements like helium, hydrogen and lithium, which produce heavier elements and spread them through the universe when they exploded. This would allow later stars to have more metals and other elements.

This star was found as an almost invisible secondary star in a binary star system. And if this star can be observed maybe it’s even older to be studied.

“This star may be one in 10 million,” said Kevin Schlaufman, professor of physics and astronomy at Johns Hopkins University. “It tells us something very important about the first generations of stars.”

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