Wednesday , March 29 2023

Black hole, galaxy fountain and big bang star: this week …


This week scientists speculated that interstellar matter, called Oumuamua, could accelerate the solar system last year and become an alien probe.

The Parker Solar Probe is well under way, despite the first brush to the sun, 15 million miles away from the surface, after the stars close to the stars disappear. The Mars Curiosity Rover has been driving for quite a long time along the surface of Mars, the longest since the September computer crash. And the opportunity of being another rover on Mars is still sadly quiet.

There are other things we missed this week in space.

Galactic fountain

This is a fountain you will not want to play, but it is beautiful to watch.

A gigantic elliptical over 100 million light years on Earth Abell 2597 A black hole in the center of a galaxy pulls cold molecular gas back out in the same manner as a jet or a fraction. This week's The Astrophysical Journal featured observations of the Atacama Large Millimeter / submillimetre telescope and the Very Large Telescope of the European Southern Observatory.

This process is destined to be repeated over and over again. Cold gas falls into a black hole, ignites into a black hole, and begins spraying plasma that shines into space. However, the plasma can not escape from the gravitational force of the galaxy, so it rains back into the black hole.

"The evolution of the galaxy can be quite confusing, and the big galaxy lives hard and tends to be young," said Timothy Davis, a physics astronomy school at Cardiff University. "For the first time, we were able to observe the entire cycle of the first mass black hole that serves to regulate this process, extending the lifetime of the galaxy."

Black hole merging

We know that galaxies are joined together to form a larger galaxy, but for the first time astronomers have actually gathered together and actually observed some galaxies. And they were able to see the first mass black hole in the center of the galaxy to form a huge black hole.

The study was published in Nature this week.

"It's amazing when we find that it's too close to combining the galactic nuclei associated with this huge black hole," said Michael Koss, a researcher at Eureka Scientific. "In our study, we can see two galactic nuclei when an image is taken, you can not argue about it, it is a very clean result that does not depend on interpretation."

The recorded image of the Hubble Space Telescope and the high resolution image taken with the adaptive optical system of the W. M. Keck Observatory showed a stunning first eye.

This will probably happen 4 billion years after our galaxy merges with the neighboring Andromeda galaxy.

Death of the galaxy

The neighboring dwarf galaxy called the Small Magellanic Cloud is only a fraction of the Milky Way size and loses the power used to form the star.

Details from the radio image of the Australian SKA Pathfinder telescope array released this week at Nature Astronomy show that the galaxy lost gas.

Naomi McClure-Griffiths, a researcher at the Australian Institute of Astronomy and Astrophysics, said, "The galaxy that stops making stars gradually disappears with oblivion, and when the galaxy loses all of its gas, it slowly fires.

Ultimately, astronomers believe they will be eaten by the Milky Way.

Star cluster

These stars are a little wild duck. Meet a wild duck cluster with 2,900 stars.

Astronomers thought that the star cluster of open stars would include only the same generation of stars. Wild duck clusters, however, have different bright stars, suggesting they are of different ages. Blue stars are generally younger, and red stars generally last longer.

But in a new study, researchers realized that open clusters were tricking them. Due to the way they are turned, they are displayed in different ages and colors.

Their rotation causes the wave to appear suddenly as one side of the star faces Earth and the light is distorted to make it look blue or red.

Long and long ago

Astronomers have discovered that they can be one of the oldest stars in the universe. In other words, the oldest star in the universe is made of the first material released from the Big Bang. This 13-billion-year-old star is very small, has a low mass, and has a low metal content, indicating the first star to be born.

The earliest stars were filled with elements such as helium, hydrogen, and lithium, and they spread throughout the universe when they created and exploded heavier elements. This allows later stars to have more metals and other elements.

This star was found in a quadratic system that was almost invisible in a quadratic system. And if this old star can be observed, perhaps the older ones will be studied.

Kevin Schlaufman, associate professor of physics astronomy at Johns Hopkins, said, "This star will probably be 10 million." It tells us something very important about the first generation of stars. "

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