Skip to main content

The Origin






https://theinterstellartravel.blogspot.com/2018/03/the-origin.html


Milky Way is the galaxy which contains our Solar system. The term “milky” is derived from its appearance on Earth. It is seen as a band of light from the stars which cannot be distinguished by a naked eye. Many are studying the origin of Milky Way. And astrophysicists of North Western University have succeeded in it. The study was published by Monthly Notices of the Royal Astronomical Society on July 26th 2017.

In a first of its kind analysis, the Northwestern University astrophysicists have discovered that up to half of the matter of the Milky Way may come from another galaxy. As a result each of us may be part of some other galaxy. Like Aliens!

 The research was carried out by using supercomputer stimulation. Using these stimulations, astrophysicists found out how every galaxy, like our own get their matter: through intergalactic transfer. Intergalactic means existing or occurring between two or more galaxies.  This transfer may take place due to explosion of supernova in one galaxy. Then the gases and matter from this explosion will be thrown in different galaxies, with the help of powerful galactic winds.

Intergalactic transfer is a new phenomenon which will help us to understand how galaxies evolve. 

Since galaxies are far from each other, these intergalactic winds will take billion light years to reach other galaxies.Professor Claude-André Faucher-Giguère and his research group, along with collaborators from the FIRE ("Feedback In Realistic Environments") project, which he co-leads, had developed sophisticated numerical simulations that produced realistic 3-D models of galaxies, following a galaxy's formation from just after the Big Bang to the present day. He also developed algorithms which will help to mine this data and quantify how galaxies actually acquire matter.

In the research by tracking the flow of matter in the stimulations, it was found that gas matter flow from smaller galaxies to bigger galaxies.  This transfer of gas can account up to 50% of matter in larger galaxies.  By using the stimulations, researches can find whether the star formed in a galaxy is endemic to galaxy itself or is formed from gas from another galaxy.

The findings open a new line of research in the field of understanding galaxy formation. The phenomenon intergalactic transfer can now be tested by using the computer stimulations. This new study has changed our understanding about the galaxy origin.

Our origin is not as local as it seems. More than half of the matter which we are made and surrounded of comes from other galaxies. Our Solar system itself is made of matter which came from other galaxies. Due this we can call ourselves space immigrants or “ALIENS”!



Labels:

Comments

Post a Comment

Popular posts from this blog

RETROGRADE AND PROGRADE

Since childhood we have learnt that all the planets go around the Sun. Meaning, the planets and other celestial objects rotate around the Sun in specific directions. But did you know that not all follow the same directions? Some follow the Sun’s rotation while some go in the opposite direction. After observing these motions of certain planets and comets, astronomers termed these rotations as “ Prograde ” and “ Retrograde ”. Before we get into these terms, let’s first understand how the direction of the motion is determined. The direction is determined by the primary object in system that forms the system’s hub. In our case, it is the Sun. So rotation of all the planets and celestial bodies is decided by the Sun’s direction of rotation. Now that we know how the motion is determined, let’s get into the above mentioned terms. Prograde:   It is the motion in the direction of that of the Sun. Meaning, most of the planets and some comets move in the direction of the ...
Post a Comment
Read more

Pluto-The controversial planet

Pluto has been our favorite planet since 2006. The reason why I wrote this blog is because NASA is ready to explore the planet and study it closely through its mission New Horizons. So before we get to know about this mission, let’s first get to know about Pluto. HISTORY: Pluto was discovered on February 18, 1930 in the Kuiper Belt. Kuiper belt is a ring of bodies beyond Neptune. Originally Pluto was considered as the ninth planet in solar system. But studying its size, mass, density etc. the International Astronomical Unit (IAU) defined the term “planet”. The definition goes as- “ planet  is a body that orbits the Sun, is massive enough for its own gravity to make it round, and has cleared its neighbourhood" of smaller objects around its orbit.”   According to this definition, Pluto could not be classified as a planet and hence was reclassified as a “dwarf planet” in 2006. Although it is a dwarf planet compared to other eight planets, it is the second m...
2 comments
Read more

The Black Hole Party

The very idea of black hole is baffling and scary at the same time. Many scientists have dedicated their lives for studying these scary things. Why scary? C’mon let’s be honest.   Getting sucked by a black hole due to its strong gravitational field means instant death. Although we still don’t know what exactly will happen if a human being falls in the black hole , we have drawn our conclusions based on what it does to light. That’s why; it may sound even scarier when we learned that scientists have discovered a dozen of black holes teaming up at the center of our galaxy-Milky way.   Data from NASA’s orbiting Chandra X-ray observatory has allowed researchers to detect a group of black holes surrounding Sagittarius A*. Sagittarius A* is a super massive black hole at the center of Milky Way-that’s where we are. For a while now, scientists have believed that there is something at this place and now it’s confirmed! Based on the findings,   up to 10,000 black h...
3 comments
Read more