Thursday , October 21 2021

The glittering cluster of galaxies brightens the dark matter


Two massive cluster galaxies: Abell S1063 (left) and MACS J0416.1-2403 (right) – a soft white heat, called intracluster, is embedded with many galaxies. The lunar lights create white stars left between the galaxies in a galaxy single galaxy and are now freely moving to the galaxy clusters. Astronomers have found that the clusters of internal clusters are closely linked to the mass distribution of clusters in the general area of ​​gravity. This shows how the blue "ghost light" shows how dark invisible matter is divided into clusters. Dark matter is a key link to understanding the structure and evolution of the universe. Abell S1063 and MACS J0416.1-2403 cells were the strongest examples of light that could be more compatible with the cluster mass map than the X-ray light. Thus, there is a trace of dark matter. Credit: NASA, ESA and M. Montes (New South Wales University)

The new look of the image of the Hubble image of galaxies can be a step towards unraveling the light wave of unstable material that makes up most of the universe. Monthly notes of the Royal Astronomical Society.

Using the latest observations of the Hubble massive four-sex galaxy skin, the astronomers demonstrated that the glow of the galaxies reveals the paths of a light-dark matter, based on the X-ray observation methods. light

Intraclipe's light is the interaction between the galaxy that interrupts the structure; In Kaos, private stars are thrown into their galaxy without recording links, with the cluster's gravity map. This is also the most obscene matter. X-ray clearly indicates where the galaxy bumps are being tapped, but not the cluster's underlying structure. This makes the exact track of dark material.

"The bright light of light means that this is a brilliant tracer of dark material in the cluster of galaxies, which are the dark matter and stars that move the gangs into the gravitational potential of the cluster," said the same gravity, "said New South Wales University of Sydney, Mireia Montes, author of the research. "We have found a new way to find where to find the location of the dark matter because they are the same as the same gravitational potential, we can illuminate the location of the dark matter."

Montes also emphasized that this method is not only accurate, but it is more effective to use only deep imagery than spectroscopy techniques that are more complex and time-intensive. This means exploring more clusters and objects in space in less time, such as dark matter and potential evidence.

"This method places us in a statistical way to characterize the nature of the dark matter," said Montes.

"The idea of ​​the study was sparked when analyzing images of the pristine Hubble Frontier Field," said the Ignacio Trujillo researcher from the Canary Islands Institute of Astronomy, Tenerife, Spain, and Montes, who has long studied the internal cluster. "Hubble Frontier Fields showed the unpredictable chiarity of unprecedented lighting, the images were inspiring," said Trujillo. "However, I did not expect the results to be so specific. The implications for future space research are very exciting."

"Astronomers use Modified Hausdorff Distance (MHD), a metric converter to measure the similarities between internal clusters, and measure the similarities between the different mass maps of clusters in the Hubble Frontier Fields project at the MikelSki Archive for Space Telescopes (MAST) MHD It is a measure of two subgroups, at least the MHD value, the more similar is the two-point set, which demonstrated that the distribution of Hubble Frontier Fields in the distribution of clear masses better than the X-ray transmission in six galaxial clusters, Chandra X-ray Advanced Exposure to Advanced CCD Image of the Observatory (ACIS).

Outside the initial examination, Montes and Trujillo have many opportunities to expand their research. To begin, the observation radius should be increased in the original six clusters to see the continuity level of monitoring. Another important test of the method will be to analyze and analyze additional galaxy clusters consisting of more research groups to add data sets and confirm their findings.

Astronomers want to apply the same technologies to powerful space telescopes in the future, by applying James Webb Space Telescope and WFIRST technologies. This clearly leaves them to solve a bit of light inside the remote universe.

Trujillo wants to scale the method of accumulating from massive galaxies clusters to simple galaxies. "That would be on the galactic scales, for example, exploring stellar halo. They should work according to the same idea, the stars surrounding the galaxy, due to their association activity, after the potential potential galaxy, to lighten and distribute dark matter."

The Hubble Frontier Fields program was a large-scale image designed to use natural magnification gravity of the clusters of the galaxy clusters to help remote galaxies farther away and thus increase the evolution of galaxies (distance) and galaxy evolution. . In the research, diffuse internal clusters were annoying, hiding beyond remote galaxies. However, the bright light could be evident in one of the greatest mysteries of astronomy: dark matter.

Explore more:
BUFFALO is loaded at the beginning of the galaxy

More information:
Mireia Montes et al, Intracluster light: dark material tracer light in the clusters of the galaxy, Monthly notes of the Royal Astronomical Society (2018). DOI: 10.1093 / mnras / sty2858,

Magazine reference:
Monthly notes of the Royal Astronomical Society

ESA / Hubble Information Center

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