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We live in a broken & broken galaxy & # 39; According to the first precise 3D map of the Milky Way




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Print of the artist of the twisted twisted disc of the Milky Way.Chen Xiaodian

How & nbsp; measure one thing that is & nbsp; within? We've all seen countless images of our own Milky Way Galaxy, but you have ever considered this: none of them is real. All are impressions of the artists about which astronomers probably consider the Milky Way.

Now we know that the Milky Way is not flat. The astronomers of the National Astronomical Observatories of the Chinese Academy of Sciences (NAOC) and the Macquarie University of Sydney, Australia have just finished published an article a Nature Astronomy which reveals that the Milky Way is "breaks, turns on and goes" far from the center of the Milky Way.

"In general, we think that spiral galaxies are quite flat, like Andromeda, which you can easily see through a telescope," says Professor Richard de Grijs, co-author and astronomer at Macquarie University.

The Galaxy of Andromeda or the M31.Getty

How does the Milky Way work?

When viewed from a great distance, the galaxy of the Milky Way Galaxy would look like a thin disc of stars that orbit once every hundreds of millions of years around its central region. The estimated 300 billion of stars, along with a mass of dark matter, provide the gravitational "tail" to keep it as a whole, say astronomers.

What causes the S-shaped warp?

What is deformed is hydrogen clouds in the outer galaxy. It is the change in the gravity of the gravity away from the inner region of the galaxy that causes the S-shaped warp of the Milky Way. "It is very difficult to determine the distances of the Sun to parts of the outer gas disk of the Milky Way without having a clear idea of ​​what this disc really looks like," & nbsp; said Dr. Chen Xiaodian, NAOC researcher and lead author of the article. "However, we have recently published a new catalog of well-known variable stars known as Classic Cefeides, for which distances can be as accurate as 3 to 5%."

RS Puppis is one of the brightest known stars of Cepheid in the galaxy of the Milky Way Galaxy.Hubble Space Telescope

What is a Cepheid star?

Giant bright yellow and supergegant stars. Cepheid stars are often referred to as "cosmic criteria" or "standard candles", and much of what astronomers know about distances in the Universe are reduced to the observations of these pulsating young stars. In the study, 1,339 Cephiis were studied, each up to 100,000 more shining than the sun

Why are the stars of Cepheid important??

Cepheids predicts predictably, so you can use changes in its luminosity to obtain one very reliable distance. Your computer used & # 39; Classic & # 39; Céféides, which was boosted for days or months. The skeptics were first discovered in 1912 by Henrietta Swan Leavitt at the Harvard College Observatory after studying thousands of variable stars in the Magellanic clouds, two dwarf galaxies that orbit the Milky Way. His work was used by Edwin Hubble to determine that some nebulae that could be seen from Earth were, in fact, distant galaxies. These data used to calculate how the galaxy is farther, the faster we are moving away: the Hubble Constant, which & nbsp; describes the Expanding universe.

For astronomers from China and Australia, the data on these classical Céphéid stars were provided by the Expanded Infrared Field Survey (WISE), allowing the team to develop the first precise three-dimensional image of our Milky Way in its most remote regions.

The NASA Field Infrared Survey Explorer, or WISE, launches & nbsp; in 2009. WISE scans the entire sky in infrared light, picking up the glare of hundreds of millions of objects and producing millions of images.NASA

Why does this happen?

"By surprise, we have seen that in our 3D collection of 1,339 stars Céfide and the gas disk of the Milky Way are very close. This offers new ideas about the formation of our domestic galaxy," & nbsp;finger by Grijs. "Perhaps more important, in the outer regions of the Milky Way, we found that the stellar type S disk was deformed in a spiral pattern twisted progressively."

"This new morphology provides an updated map crucial for the study of the stellar movements of our galaxy and the origins of the Milky Way disk," & nbsp;finger Dr. Deng Licai, senior researcher of NAOC and co-author of the document.

What causes Urdu??

Over the past 50 years, there have been indications that hydrogen clouds in the Milky Way are deformed. Astronomers have observed a dozen other galaxies that showed spiraling patterns spiritually twisted in their outer regions. "Combining our results with these other observations, we conclude that the deformed spiral pattern of the Milky Way is probably caused by" pairs, "or rotational forces, by the massive internal disk," & nbsp; said Dr. & nbsp; Liu Chao, senior researcher and co-author of the document.

Wishing the clear skies and wide eyes

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Print of the artist of the twisted twisted disc of the Milky Way.Chen Xiaodian

How do you measure something that is inside? We've all seen countless images of our own Milky Way Galaxy, but you have ever considered this: none of them is real. All are impressions of the artists about which astronomers probably consider the Milky Way.

Now we know that the Milky Way is not flat. The astronomers of the National Astronomical Observatories of the Chinese Academy of Sciences (NAOC) and the Macquarie University of Sydney, Australia have just published an article in Nature Astronomy which reveals that the Milky Way is "breaks, turns on and goes" far from the center of the Milky Way.

"We usually think that spiral galaxies are pretty flat, like Andromeda, which you can easily see through a telescope," says Professor Richard de Grijs, co-author and astronomer at Macquarie University.

The Galaxy of Andromeda or the M31.Getty

How does the Milky Way work?

When viewed from a great distance, the galaxy of the Milky Way Galaxy would look like a thin disc of stars that orbit once every hundreds of millions of years around its central region. The estimated 300 billion of stars, along with a mass of dark matter, provide the gravitational "tail" to keep it as a whole, say astronomers.

What causes the S-shaped warp?

What is deformed is hydrogen clouds in the outer galaxy. It is the change in the gravity of the gravity away from the inner region of the galaxy that causes the S-shaped warp of the Milky Way. "It is very difficult to determine the distances of the Sun to parts of the outer gas disk of the Milky Way without having a clear idea of ​​what is actually seen," said Dr. Chen Xiaodian, NAOC researcher and lead author of the article. . "However, we have recently published a new catalog of well-known variable stars known as classic Cefeides, for which distances as exact as 3 to 5% can be determined."

RS Puppis is one of the brightest known stars of Cepheid in the galaxy of the Milky Way Galaxy.Hubble Space Telescope

What is a Cepheid star?

Giant bright yellow and supergegant stars. Cepheid stars are often known as "cosmic criteria" or "standard candles", and much of what astronomers know about distances in the universe are reduced to the observations of these pulsating young stars. In the study, 1,339 Cephéidos were studied, each up to 100,000 brighter than the Sun.

Why are the stars of Cepheid important??

Cepheids predicts predictably, so that changes in brightness can be used to obtain a very reliable distance. Your computer used & # 39; Classic & # 39; Céféides, which was boosted for days or months. The Cefeids were first discovered in 1912 by Henrietta Swan Leavitt at the Harvard College Observatory after studying thousands of variable stars on the Clouds of Magellan, two dwarf galaxies that orbit the Milky Way . His work was used by Edwin Hubble to determine that some nebulae that could be seen from Earth were, in fact, distant galaxies. These data were used to calculate how the farthest of the galaxy is, the faster it moves away: Hubble Constant, which describes the expanding universe.

For astronomers from China and Australia, the data of these classic stars of Cepheid were provided by the Infrared Survey Browser (WISE), which allow the # 39; team developed the first precise three-dimensional image of our Milky Way in its more remote regions.

NASA's infrared field survey browser, or WISE, began in 2009. WISE scans the entire sky in infrared light, picking up the glare of hundreds of millions of objects and producing millions of images.NASA

Why does this happen?

"A little by surprise, we saw that, in 3D, our 1,339-star collection of Cepheid and the gas disk of the Milky Way are keeping up close, offering new ideas about the formation of our home galaxy" finger by Grijs. "Perhaps more important, in the outer regions of the Milky Way, we found that the stellar type S deformed with a spiral pattern twisted progressively."

"This new morphology provides an updated map crucial for the study of the stellar movements of our galaxy and the origins of the Milky Way disk." finger Dr. Deng Licai, senior researcher of NAOC and co-author of the document.

What causes Urdu??

Over the past 50 years, there have been indications that hydrogen clouds in the Milky Way are deformed. Astronomers have observed a dozen other galaxies that showed spiraling patterns spiritually twisted in their outer regions. "By combining our results with these other observations, we conclude that the deformed spiral pattern of the Milky Way is probably caused by" pairs "or rotational forces for the massive inner disk," said Dr. Liu Chao, senior researcher and co-author of the paper.

Wishing the clear skies and wide eyes

If you liked this article, you would also like:

Texas claims the third dark-colored sanctuary in the United States while continuing the fight against light pollution

Galaxy Will Slam enters the Milky Way, wakes up the black hole and could send the solar system & # 39; Flying into Space & # 39;

Mystery "lost link" object found at the limit of the solar system by scientists using small telescopes

When is The Next "Super Blood Wolf Moon"? How to see another lunar eclipse before dying


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