What have been the souvenirs of James Webb of space for us?

According to RCO News Agency, On December 5, after years of delay, experimentation and spending, the James Webb space telescope (JWST) was finally launched, but showed that the expectation was worth the patience of astronomers, astrophysics, cosmologists, engineers and space enthusiasts.

This new generation space telescope is the largest and most sophisticated space observatory ever launched and the most sensitive to the infrared observatory ever built.

Whatever James Webb has revealed since its scientific operation in July has been spectacular.

James Web, as a successor mission for the Hubble and Spitzer Space Telescopes, is equipped with high -resolution images and spectroscopes that allow it to observe a performance that is far or low for previous missions.

The telescope provides the ability to examine many aspects of astronomy and cosmology, including the view of the first stars and galaxies in the universe, the young star system, and the planets still forming, as well as describing potentially residential abnormal planets.

Many of these findings were as unexpected as they were discovered and spectacular.

The main goals of “James Web” were to solve some of the deepest secrets of cosmology, such as the speed of expansion of the world and how the first galaxies were formed. However, its observations have made them deeper instead of solving these secrets.

After more than two years of observations and dissemination of data by James Web, it is time to evaluate what has shown us.

Pushed the world’s veil

One of James Web’s primary goals was to see the formation of the first stars and galaxies that began approximately 4,000 years after the Maybang. This coincides with what cosmologists know as the “dark age” cosmic that continued for a billion years after May.

Prior to this period, the first atomic particles were formed in the universe, consisting of electrons and protons, which were combined, forming the first hydrogen and helium atoms. As a result, the universe penetrated throughout this period by neutral hydrogen clouds.

The only sources of light (photons) of this cosmological era, which is today visible to astronomers, are a remnant that can now be seen as a microwave cosmic background (CMB) and photons that are occasionally released by neutral hydrogen atoms. This process came from the first stars and galaxies that re -ionized most neutral hydrogen in the world.

Due to the cosmic intervals involved, the second light source is “Change of Red Spectrum”, so that it is only visible in parts of the infrared spectrum, which is very difficult to observe.

In short, the period when the first stars and galaxies began to evolve were formerly “dark” astronomers, so they were named “Dark Age”.

In a few hundred million years later, hydrogen clouds were merged and formed the first stars and galaxies; A period that cosmologists call “dawn of cosmic”. These stars were very delightful, hot and short -lived and lasted only a few tens of millions of years and emitted severe amounts of UV rays. This radiation led to the “Era of Playing”; Where neutral hydrogen was divided into plasma, free electrons and protons.

This process led to the “transparent” of the world for modern tools for up to a billion years after the Maybang. For decades, scientists have hoped to see the early galaxies while still being formed to answer questions about how the world begins to evolve today.

Thanks to the advanced James Web and its sophisticated tools, the first galaxies to exist during the “Cosmic Dawn” are now visible.

However, some of the surprises were waiting for astronomers because James Webb had abandoned the veil. First, less than a billion years after the Maybang, there were much more galaxies than what the cosmic models are established. Second, the galaxies themselves seemed much larger and brighter than expected.

As Ethan Seigel, a theoretical astrophysicist and author of science specializing in cosmology, says: We expected the early galaxies to look less than we really see. But most importantly, James Webb was a new observatory, and our theoretical models told us what to expect based on James Webb.

Fortunately, astronomers are inventing theories about because observed galaxies ignore previous expectations. According to a recent study of astronomers based on the International Cosmic Evolutionary Survey (Ceers), observed lighting may have been an illusion of light.

Theoretically, the macro black holes in the center of these early galaxies consumed gas quickly and friction that produced light and heat by gas.

This is similar to what astronomers have observed today The bright central areas of the galaxies with the black holes that are temporarily shining more than the rest of the galaxy. If so, the light emitted by the gas would have created much more the illusion of stars than James Web’s observations.

Similar research has suggested that the Kayhan was much denser during this period and prevented the expense of gas from the early stars during the formation. This means that the first stars in the universe have been formed more quickly and allowed many galaxies to arise sooner than expected.

However, as Siegel explained, these are just two of a handful of possibilities.

According to him, what is attractive about finding a large number of seemingly brilliant galaxies in the early cosmos is that it does not only re -examine our infrastructure assumptions, but it also forces us to work to solve the puzzle. There seems to be four contributing factors that lead to this large number of early galaxies.

“The first thing is that James Web had more performance than it was designed for it,” he said. Its optical surfaces are more accurate and even cleaner than expected, meaning that not only the early galaxies, but also any crime it sees, it looks brighter and sharper than we expected.

Secondly, the initial simulations did not model with sufficient detail what happened to the density of the early areas in the early days of the universe. These areas, as they are known, probably make up two -thirds of the first brilliant galaxies, but the two recent factors are observable and show us that our pre -James Web models have been simplified to transform the brightness into too. We simply thought that the light would track the mass, and the star light you see allows you to rebuild how much the mass is in the form of stars.

According to Siegel, this is only true if we assume that the stars are responsible for the 5 % light we see, as well as the stars are formed at a continuous speed, but none of these are true. The stars are not constantly formed at the same speed, but they are explosive over time, where during an explosion, the galaxy looks very bright than its mass.

Many early galaxies also have active superconductors that can temporarily increase the galaxies due to non -stagnant activity.

Only with all of the four factors, we can see that our basic model of cosmology has not been violated, and the large number of brilliant galaxies observed by James Webm has not violated it, but James Webb has forced us to look deeper to understand exactly what to see.

So although the results were unexpected, they do not necessarily mean that our cosmic models must be abandoned. They have to revise them a little, but not to put them out.

Hubble’s tension

Another main goal of James Web’s mission was to solve the contradictions of the cosmic intervals that have plagued astronomers since the 1980s.

When it comes to measuring cosmic intervals, astronomers rely on several ways that are generally known as the “ladder of the cosmic distance”. With these measurements, scientists can determine the speed of the expansion of the universe (known as the Hubble-Lolm constant) over time.

Astronomers rely on the landscape of the “Delta Cafewus variable” for local intervals of about 6,000 to 6,000 light -years. Measurement of landscape differences from ancient times have been used to determine the distance of planets.

In modern astronomy, this method observes stars that change brightly over time. So they are called “variable”. This method allows scientists to determine how far we should be based on the amount of light reaches our observatory.

Astronomers rely on the variables of the Delta Cafeids (CEPHEIDS) and RR Lyraes for the intervals of 1,000 to 5 million light -years.

The next step of this ladder needs much brighter objects. Type 3A supernovae, which allows astronomers to measure the transfer to red to the galaxies up to 2 billion light -years away. To go beyond, astronomers must rely on “red to red” measurements to determine the intervals.

“Transfer to Red” explains how light is moved from cosmic sources to the red end of the spectrum. This is the result of the expansion of the universe (known as the Hubble law); Where the increasing distance between the earth and the celestial bodies makes the wavelength of this light longer and looks red. Before the 1980s, astronomical observations and red -to -red transfer measurements were limited to objects within four billion light -years from Earth.

Astronomers were able to view and measure some of the most remote bodies of the universe thanks to observations made by the Hubble Space Telescope in the 1980s and 1980s; That is, the galaxies that appeared from the “Dark Age” about 2 billion years ago.

These observations included observations of Hubble’s Deep Square (HDF) in Year 2 and the deep South Hubble (HDF-1) Square in Year 2. After that, the ultra -deep Hubble (HUDF) was performed in year 2.

It was accompanied by measuring cosmic background radiation by missions such as the NASA Cosmic Background (COBE) and the European Space Agency (ESA) mission. These missions allowed astronomers to measure transfer to the most primary light in the universe. Unfortunately, the results were not measured correctly, and astronomers obtained different values ​​between local measurements and the most remote measurements of the galaxies.

Measurements made from cosmic background radiation showed that the Hubble constant was about 2 km / s / megaparsk (MPC). This means that for every million parshows (about 1.5 million light -years), the expansion speed of the universe increases 2 kilometers per second. However, local measurements showed 2 km / s per megaparsk. These results were in “tension”, so the term “Hubble’s tension” was used.

Siegel says: James Webb’s great work was to solve one of the biggest uncertainties in the measurement of Delta Cafewus in the cosmic ladder, the field congestion of the variable stars of Qifaos in our galaxies. We now, with the terms of James Web, can see that Hubble’s data is really interpreted correctly, and this increases the importance of “Hubble’s tension”.

Efforts have been made to explain this, including the possibility that “early dark energy” (EDE) has been working in this period. According to this theory, the presence of EDE leads to an explosion of extra and unexpected expansion in the young world. EDE accounts for about 2 % of the total density of the cosmos, then collapsed faster than other forms of radiation and left unchanged late world evolution.

Siegel says: There are potential explanations that are one of the early dark energy, and they are all unhappy in many ways. This is not an easy puzzle, but part of what makes it very interesting.

These are the only part of the secrets that James Webb has so far examined, and what has been found has challenged many of the previous imaginations about the world. These findings and efforts by scientists to solve them require that our current models will undergo minor modifications. However, James Webm leads to improved and more accurate theories of how the world has evolved and evolved since the fog.

Change Cosmic Evolution Models with James Web’s findings

Before James Web, the main idea was that star black holes gradually became macro -black holes or superconductors.

So far, we have examined how James Webb has infiltrated the dark cosmic centuries and depicted the world’s first galaxies. These observations also allow astronomers to update their estimates of cosmic expansion (known as the Hubble constant); What they have tried for decades to do.

However, these observations showed some of the really unexpected findings. James Web’s observations showed more galaxies more than the forecasts of our cosmic models in the early universe. In addition, the galaxies were much brighter than expected, indicating that stars were formed faster than they anticipated.

In addition to all this, these observations showed that there is a contradiction between local distance measurements and primary cosmos (known as Hubble stress).

Astronomers and cosmologists have been working hard to explain these unexpected revelations, and have also presented interesting theories that include primary dark energy (EDE) that put more pressure in the universe in the early days and continues to search for further explanation.

In the meantime, James Webb has made other amazing discoveries that include observations of extrasolar planets, the first SMBH supercar in the universe, and even some amazing details about the planets of the solar system.

Properties of extrasolar planets

The James Web’s Space Telescope has transformed the study of extrasolar planets by transferring the field of view from the discovery to their exact specifications.

So far astronomers have confirmed the existence of four extrasolar planets in four planetary poems, and thousands of other planets are waiting for approval.

Scientists with sophisticated infrared tools and spectroscopes of the James Web can analyze the atmosphere of these planets to identify chemical symptoms such as water vapor, oxygen or methane that may refer to residence or even life on an extrasolar planet.

One of the extravagant planets that James Webb has seen is called “WASP-2 B”, a “Hot Customer” that goes away from its sun-like star within 5 light-years away from us, which is a very close distance. Thanks to James Web, scientists in July discovered the existence of water and evidence of clouds and fogs in the atmosphere of the planet.

Subsequent analysis confirmed the presence of carbon dioxide and other chemical abundance on the planet. It was very unexpected because it was believed that the planet was too hot to form clouds in its atmosphere.

James Webb also revealed interesting things about the extra-planet “K۲-2 B”, a stone planet that is several times the size and mass of Earth. The planet rotates around a red dwarf star within 5 light -years from Earth and was first observed in year 2.

Previous observations with the Hubble Telescope showed that “K۲-2 B” could be a “Hycean World”, meaning a planet with hydrogen-rich atmosphere and oceans. However, in September, James Webm identified methane and carbon dioxide in the planet’s atmosphere. While these are not evidence of life itself, there are clear biological signs that can show the presence of life.

School of holes

Another important achievement of “James Web” was the observation of macro -black holes or superconductors in the early cosmos. Astronomers can better understand how these huge objects evolved by observing the early seeds of these black holes in galaxies that existed less than a billion years after the Bang Bang.

Astronomers have been knowing for decades for decades to know that the black holes were at the center of the largest galaxies in the world. The presence of these giants causes the gas, dust and surrounding stars to collapse around them and form bright increased discs.

This leads to something that is known as the galactic (AGN) or quantitative nuclei; Where the center of the galaxy periodically, the most brightest of all the combined stars in the disk is increasing.

James Webb saw galaxies in the year when the universe was less than a billion years old. A fascinating finding took place when the astronomers of the galaxy, which came about only 5 million years after the Maybang.

However, they were somewhat surprised by seeing a black hole in the center of this young galaxy with a mass of approximately 2 million times the sun.

Of course, this finding was not precisely a pioneering disclosure. “For many years, Ethan Siegel says:” For many years, we have seen large -scale hole with the mass of a hundred million sun in galaxies that were almost as young as young and created 2 to 5 million years after the Maybang. ” With the advent of James Web, we were able to look farther and even find older galaxies. They still had a black hole.

He added: “The CEERS ۱۱۱۱” superconductor set a record for the first black hole, but it was not too big and only a little earlier than the predecessors. It was also in a large, magnificent galaxy that was much heavier (in terms of its star content) than the black hole.

The real surprise happened when astronomers made dual observations using James Web and the X Chandra Observatory to study the UHZ1 galaxy. This galaxy was when the universe was about 5 million years old. At the center of that, the Ceers ۱۱۱۱ silk hole was observed, with a mass of 5 million times that of our sun. This discovery surprised scientists and significantly influenced our understanding of cosmic evolution.

Siegel says: The main thinking before James Webb was that black holes were made up of stars, and star black holes were somehow turned into superconductors that appear in later times. This can be explained as long as the mass of the early galaxies in the stars is greater than that of the central superconductor. This is still honest for the CEERS ۱۱۱۱۱۱۱۱۱۱۱۱. As long as we found the UHZ1 galaxy and saw it with Chandra, we actually found that black hole and realized that this story is different.

The discovery prompted astronomers to suggest that the seeds of the first black holes were probably black holes that were caused by the collapse of high -profile stars in the early universe.

Astronomers refer to these stars as the “population” stars, which appear to have been very hot, massive and short. As mentioned in the previous section, it is believed that these stars have led to the age of ionization, which has led to the transparency of the world about 2 billion years ago, meaning that it has been visible to modern -day astronomers.

The solar system

James Webb, closer to our home, Earth, has taken stunning images of planets and objects in our solar system. These images and spectrum have resulted in several findings and unexpected disclosures.

For example, James Web’s infrared tool has provided new images and breathing of the solar system’s gas and ice giants such as Jupiter, Saturn, Uranus and Neptune. The high resolution and complexity of these tools shows interesting details that included stunning images of customer moons, atmosphere of planets and moons, Saturn rings and some other unexpected findings.

For example, a observation campaign conducted in July using the NiSspec “James Web” tool, showed complex and unexpected structures in the customer’s atmosphere, including dark bows and bright points.

These structures were observed over the famous red dot of the Jupiter planet, which is a stable high -pressure area that leads to the largest storm in the solar system.

According to the research team that they saw, these structures show that gravitational waves significantly shape the customer’s upper atmosphere. These observations also showed that the high temperature of the customer’s large red stain is lower than expected.

In addition, James Webm found evidence of a fountain stream that had not been seen before, in the climate of more than 2 kilometers and moving at a speed of about 2 kilometers per hour.

Scientists also saw an unknown small asteroid in the main asteroid belt in February. It has a diameter of 2 to 5 meters in diameter, making it the smallest mass discovered by James Web. Since it is very difficult to identify the objects with this size using conventional telescopes, the discovery displayed James Web’s usefulness in identifying objects in our astronomical neighborhood.

These discoveries are just a number of things James Webb has revealed to our world so far. They also provide a tempting insight into the future.

What will be revealed about the first cosmic galaxies, cosmic expansion, extrasolar planets and objects in the Solar System will strengthen astronomical research for the next few decades. Many of what James Web has so far revealed will be completed by subsequent observations by the next -generation telescopes.

The next generation of telescopes will include the Nancy NASA’s Nancy Grace (RST) Roman Space Telescope, the Photo Spectrum Telescope for the Cosmos History, the Era of the Era of the Ice and Ice Explorers, and the “planetary passageways and star fluctuations” (PLATO).

They will inspire future investigations by NASA’s HWO Observatory (HWO).

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