Astronomers have discovered 139 new Trans-Neptune objects, with astronomers releasing a list of 316 Trans-Neptune objects.
The new list includes 245 DES searches, 139 not previously published. The artist’s impression of a trans-Neptunian object. Image from NASA / ESA / G Bacon, STScI.
The goal of DES, which completed six years of data collection in January 2020, is to understand the nature of dark energy by collecting high-precision images of the southern sky.
Although the survey was not specifically designed with TNO in mind, its breadth and depth of coverage made it particularly adept at finding new objects beyond Neptune.
Professor Gary Bernstein of the University of Pennsylvania said: “The number of TNOs you can find depends on how much sky you see and what a ridiculous thing you can find.”
Because DES was designed to study galaxies and supernovae, astronomers had to develop a new way to track motion.
Dedicated TNO surveys measure with the frequency of every hour or two, making it easier for researchers to track their movements.
“Dedicated TNO surveys have a way of moving objects, and are easy to trace,” said University of Pennsylvania graduate student Pedro Bernardinelli.
Some of the key things we talked about in this document were a way to correct those movements. The team analyzed data from the first four years of DES and found 316 TNOs. Including 245 searches conducted by the survey and 139 new items that had not been previously published.
With only 3,000 currently known items, this DES catalog represents 10% of all known TNOs. The most famous TNO, Pluto, is 40 times farther from the Sun than Earth.
And TNO has found the distance from the Sun to 30 to 90 times Earth using the Dess data range. Some of these objects are in long-distance orbits that will take them far beyond Pluto.
And astronomers can try to find out where TNO originated, because objects that are most closely related to the Sun are different from what they are?
Different colors are expected. have originated in more distant and colder places. Places and by studying the orbits of these objects. They may be one step closer to finding Planet Nine, a hypothetical Neptune-sized planet that existed beyond Pluto.
Creating a catalog is the fun part of searching. So when you create this resource; You can compare what you found according to someone’s theory, which you should get.
The researchers used data from the Dark Energy Survey (DES), an international collaborative effort to map millions of galaxies, detect thousands of supernovae.
And detect patterns of cosmic structure that characterize the mysterious nature of dark energy. It will expose the universe that is accelerating expansion.
For the study published in The Astrophysical Journal Supplement Series. The researchers used data from the Dark Energy Survey (DES).
Which seeks international collaboration to map hundreds of millions of galaxies, detecting thousands of supernovae.
The study also describes a new approach to finding similar types of objects and may aid future discoveries of imaginary planets Nine and other invisible planets.
Professor Gary Bernstein of the University of Pennsylvania in the United States said: “The amount of TNO you can see depends on how much sky you see and what weaker you can find.
And using the first four years of DES data, Pedro Bernardinelli of the University of Pennsylvania started with a data set of seven billion “dots” that were above the background level of the image of all possible objects discovered by the software.
He then extracted many objects that were present for several nights, including stars, galaxies, and supernovae, looking for nearby pairs or triplets before beginning a great game of “connect the dots” with a “transient” list of 22 million objects to make.
To help locate objects to discover where the object will appear on subsequent nights. The list of some 400 candidates with seven billion points was broken down, which was viewed at least six nights of observation.
And then the researchers had to verify their results.
“We have this list of candidates, and then we have to make sure that our candidates are really real,” said Bernardinelli.
To filter the list of their candidates for the actual TNO.
The researchers went back to the original dataset to see if they could find more images of the object in question.
Bernardinelli developed a way to stack multiple images to create a sharp scene, helping to confirm if a detected object was a real trans-Neptunian object.
They also verified that their method was able to detect known transneptunian objects in the sky regions studied and that they were able to detect spurious objects that were injected into the analysis.
After several months of method development and analysis, the researchers found 316 TNOs, including 245 discoveries made by Dess and 139 new articles that had not been previously published.
Astronomers found more than 100 asteroids on the edge of our solar system, the element to map dark energy south of the sky has brilliantly exceeded its parameters.
The sky in the southern element has brilliantly exceeded its parameters to map dark energy. It turns out that the Dark Energy Survey has always been good at identifying small objects before Neptune.
And the use of new techniques may help find more asteroids in distant parts of the solar system. They can also help find the mysterious planet Nine, believed to be lurking in the dark.
The Dark Energy investigation itself has officially ended. It continued to collect near-infrared and near-infrared data on the southern sky for five and a half years, between August 2013 and January 2019.
He is studying a series of objects and events, such as supernovae and galaxy clusters, believed to be influenced by dark energy, in an attempt to calculate the acceleration of the expansion of the universe.
But it turns out that the depth, width, and accuracy of the survey are useful for other things: detecting distant asteroids, a class of objects from asteroids to dwarfs with few planets or comets.
We know that these celestial bodies are beyond Neptune’s orbit, which is about 4.5 billion km from the Sun, and is 30 times the distance from Earth to the Sun (hence 30 AU, or astronomical unit).
But these trans-Neptune objects (TNO) are hard to find. They are small and distant, and the area in which they roam is very dark, so there is not much reflected light there.
READ Apple’s shock Coronavirus reveals it is still used on iPhone. Here, it is very convenient to see the big sky in detail.
“The amount of TNO you can find depends on how much sky you see and what is weaker.” Physicist and astronomer Gary Bernstein spoke about the University of Pennsylvania.
Since the movement of TNO is distinct from the movement of galaxies and supernova remnants, the team had to find a way to retrieve these movements from the “Dark Energy Survey” data.
They started with 7 billion digits above the background noise of the data, which could detect potential targets.
The team suggested leaving several items in one place at night, suggesting that they not move like TNO.
The next step is to identify the grouped objects and discover how they move. All these steps produced a list of around 400 candidates, who appeared in at least six nights, which then had to be validated.
First, the team developed an image overlay method, which can sharpen the image to detect if the spots are TNO or flaws. They then used their technique to find known TNOs to determine the reliability of their method.
It was very careful and hard work, and it was worth it. The research team identified 316 TNOs, of which 139 were never released, from 30 to 90 astronomical units from the Sun.
The velocity of seven new objects exceeds the TNO peak with an average orbital distance (or semi-major axis) of more than 150 astronomical units.
(In terms of background, Pluto orbits an average distance of about 40 astronomical units.) If these extreme TNOs can be confirmed, they are one of the farthest solar objects we’ve seen.
Poultry sales decline after Coronavirus rumors involving chicken. Combining these 139 new items, there is a large part in the database of around 3,000 known TNOs. So this is a very effective way to identify these elusive space rocks.
The researchers will re-adjust their methods at their own pace. The research team adjusted the detection parameters and applied them to all observations in the 5.5-year dark energy survey.
The modified technology can generate hundreds of TNOs.
Hopefully, they can also get evidence of planet Nine, which is believed to be in orbit around 200 AU.
Some of the ways TNO orbits around the Sun indicate that a massive substance has affected its orbits under the influence of gravity, but the imaginary planet has yet to be detected.
Bernstein says: There are many ideas about giant planets that existed in the solar system and that are no longer, or are planets that are far away, they are massive, but too weak for us.
Creating a catalog is an interesting part of the discovery. Then when you build this resource, you can compare what you should theoretically find with someone.