Vela Supercluster reveals itself to be larger than estimated in new research
A study in the preprint phase in the arXiv repository presents new dimensions of Superaglomerado and Vela, a cosmic structure that surpasses previous estimates. The research, led by Amber Hollinger of Universidade Claude Bernard Lyon 1 in França, used more than 65,000 galactic distance measurements and thousands of new redshifts to map this colossal region of Universo. The cluster contains more than 20 galaxy clusters and exerts significant gravitational influence on the movements of nearby galaxies.
The supercluster is located approximately 870 million light-years from Terra, close to the plane of Via Láctea. Sua’s mass has been estimated to be about 34 quadrillion times the mass of Sol, while its extent reaches approximately 300 million light-years. The structure occupies a region of Universo that was partially invisible to conventional astronomers.
Zona of Evitamento blocks direct observation
The region where Superaglomerado of Vela is located belongs to the so-called Zona of Evitamento, which covers about 20% of the sky observed from Terra. Dense galactic Poeira blocks visible electromagnetic radiation, making traditional telescopic observation virtually impossible in this area. Para To circumvent this natural obstacle, astronomers use observation techniques at wavelengths less affected by dust, such as radio waves. Grande Telescópio of África Austral (SALT) and the MeerKAT radio telescope, both located on África of Sul, were instrumental in this investigation.
Radio emission from hydrogen can penetrate galactic dust, allowing the detection of hidden structures. Essa’s technical ability was essential for Hollinger and his team to accurately map Superaglomerado’s Vela, revealing its true magnitude.
Fluxos cosmic and gravitational influence
Galáxias are not randomly distributed in Universo. Massive Estruturas superclusters exert gravitational pull that diverts the trajectories of neighboring galaxies, a phenomenon known as cosmic flow. Esses motions, called peculiar motions, are measured by astronomers to map the distribution of invisible matter on a large scale.
The CosmicFlows catalog brings together detailed measurements of these movements, allowing you to identify deviations caused by the gravity of large structures. Entre The structures that exert a strong gravitational influence on nearby Universo are Grande Atrator and Superaglomerado of Shapley. The Superaglomerado of Vela integrates this system of gigantic structures that shape the dynamics of the local Universo.
Histórico of discovery and evolution of knowledge
The team that first identified Superaglomerado from Vela was led by Renée C. Kraan-Korteweg from Universidade from Cidade from Cabo into África from Sul in 2016. its actual size remained partially unknown. Agora, with broader data and improved techniques, the Hollinger survey presents a more complete and accurate picture of this region of the cosmos.
Zona of Evitamento, which limits direct observation, has become a strategic scientific challenge. Over the decades, astronomers have developed sophisticated methodologies to bypass this natural barrier and access information about cosmic structures hidden by Via Láctea’s galactic dust.
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Metodologia and research tools
The research combined multiple data sources and cutting-edge observatories:
- Mais of 65 thousand galaxy distance measurements
- Milhares of new redshifts (spectral redshifts)
- Observações of Grande Telescópio of África Austral (SALT)
- Dados of the MeerKAT radio telescope
- Técnicas hydrogen radio emission to penetrate galactic dust
The convergence of these data allowed researchers to reconstruct the architecture of Superaglomerado from Vela with unprecedented precision, revealing previously unknown connections and gravitational influences.
Estrutura of Universo and cosmic web
Superaglomerado of Vela does not exist in isolation. Ele is part of a larger network known as the cosmic web, where galaxies and clusters are organized into filaments of matter separated by huge voids. Essa’s large-scale structure of Universo is critical to understanding how matter distributes and evolves over cosmic time.
Mapeamentos like this reveal patterns in cosmic organization. Filaments connect different superclusters, while voids represent regions with extremely low matter density. Esse pattern repeats throughout the structure of the observable Universo, suggesting underlying physical processes that still require deeper investigation.
The new study awaits peer review before formal publication in a peer-reviewed scientific journal. Essa additional validation phase is common in observational astronomy, where the accuracy of measurements and the reproducibility of results are critically assessed by the international scientific community.
