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#superclusters

Daniel Pomarèdepomarede
2025-04-28

Cosmography archives

1983: Superclusters, a review by Jan Oort

ui.adsabs.harvard.edu/abs/1983

The title page of Jan Oort's review on superclusters.A contour plot of the number of galaxies per square degree in Corona Borealis, by Donald Shane, published in Galaxies and the Universe, Volume IX of Stars and Stellar Systems, ed. Allan Sandage, Mary Sandage, and Jerome Kristian (1975).
Daniel Pomarèdepomarede
2024-09-05

Published one year ago on this day, the discovery of Ho'oleilana

doi.org/10.3847/1538-4357/acea

Daniel Pomarèdepomarede
2024-07-22

How crazy is that? 50000 downloads for the Ho'oleilana paper, and still among the most read articles at ApJ!

doi.org/10.3847/1538-4357/acea

Jim Donegan 🎵 ✅jimdonegan@mastodon.scot
2024-04-18

"What Is The Biggest Thing In The #Universe?" - History Of The Universe

youtube.com/watch?v=milGLbH3Uk

#PhilosophyOfCosmology #Cosmology #Science #Astronomy #Astrophysics #Stars #Galaxies #Clusters #Filaments #Gravity #DarkMatter #Superclusters #Laniakea #Bootes #Void #Voids #Supervoid #Supervoids #PaulSutter #DanielPomarede

Daniel Pomarèdepomarede
2024-02-22

Einasto Supercluster: the new heavyweight contender in the universe

An international team of scientists led by astronomers from Observatory in has discovered many in the , with the most prominent among them named the ‘Einasto Supercluster’ in honour of Prof. Jaan Einasto, a pioneering figure in the field, who will celebrate his 95th on 23 February.

Happy birthday Dr Supercluster!

kosmos.ut.ee/en/content/einast

Daniel Pomarèdepomarede
2024-01-22

Cosmography archives - 1982

Giant voids in the Universe: a Review

nature.com/articles/300407a0

Daniel Pomarèdepomarede
2024-01-20

First citations for Ho'oleilana!

ui.adsabs.harvard.edu/abs/2023

Daniel Pomarèdepomarede
2024-01-18

"Regardless, the beauty of the local universe of galaxies is evident in the image where several huge superclusters of galaxies - clusters of galaxy clusters - can also be seen."

The Sloan Great Wall: Largest Known Structure?
apod.nasa.gov/apod/ap071107.ht

Miro CollasMiro_Collas@masto.ai
2023-11-20

Study Tries To Solve Hubble Tension But Reveals Something Strange Instead - YouTube
youtube.com/watch?v=znFP2-Di1s

#Astronomy #Cosmology #Superclusters #HubbleTension

Daniel Pomarèdepomarede
2023-11-17

Thanks to the "Sciences et Avenir" popular science magazine for this paper on the discovery of Ho'oleilana 👍

It is on sale at newstands until November 29, and available online here: abo.sciencesetavenir.fr/liseuse (paywalled)

Daniel Pomarèdepomarede
2023-09-19

🇯🇵 直径10億光年の泡状構造を発見　ハワイの創世神話にちなみ「ホオレイラナ」と命名
(A bubble-like structure 1 billion light years in diameter was discovered and named "Ho'oleilana" after the Hawaiian creation myth.)

sorae.info/astronomy/20230919-

'oleilana

Daniel Pomarèdepomarede
2023-09-12

ホオレイラナ / Ho'oleilana

初期宇宙のさざ波か、銀河が作る巨大な泡 / Ripples in the early universe or giant bubbles of galaxies

astroarts.co.jp/article/hl/a/1

'oleilana

Daniel Pomarèdepomarede
2023-09-11

Wow! fantastic video - as always - by Dr Maggie Lieu on the discovery of Ho'oleilana.

youtu.be/Vm_WophnrOY

'oleilana

Daniel Pomarèdepomarede
2023-09-05

👀 the frontpage of the Institute for Astronomy

ifa.hawaii.edu/

'oleilana

Daniel Pomarèdepomarede
2023-09-05

Discovery of Ho'oleilana: press release by the Institute for Astronomy at the University of Hawai'i

hawaii.edu/news/2023/09/05/bub

'oleilana

Daniel Pomarèdepomarede
2023-09-05

Discovery alert!

A spherical shell-like structure 1 billion light-years in diameter named Ho’oleilana is discovered in the distribution of relatively nearby galaxies. We posit this is the 1st observation of an individual Baryon Acoustic Oscillation (BAO).

doi.org/10.3847/1538-4357/acea

An artist's view of Ho'oleilana. The three-dimensional shell enclosed by the Baryon Acoustic Oscillation is colorized in reddish/orange/brown color and enhanced to capture its content in terms of galaxies and to expose how it is encapsulated in the larger structure of the Cosmic Web. Galaxies are shown as luminous tiny specks. The Cosmic Web is represented as the blueish filamentary maze. This view also exposes the other structures discovered by the Cosmicflows research program: Laniakea our Home supercluster of galaxies; the South Pole Wall, a giant filament of the cosmic web that embraces the sourthernmost frontiers of Laniakea; the Dipole Repeller and the Cold Spot Repeller, two underdense regions presumably associated to two giant cosmic voids. Credits: Frédéric Durillon, Animea Studio; Daniel Pomarède, IRFU, CEA University Paris-Saclay. This work benefited from a government funding by France 2030 (P2I - Graduate School of Physics) under reference ANR-11-IDEX-0003.
Daniel Pomarèdepomarede
2023-05-19

Cosmography archives
1998: The egg-carton Universe

On the possibility of a network of octahedra contacting at their vertexes for the large scale structure of the Universe, by E. Battaner and E. Florido

➡️ ui.adsabs.harvard.edu/abs/1998
➡️ ned.ipac.caltech.edu/level5/Ma

Daniel Pomarèdepomarede
2023-04-07

A study of the distributions of the shape, topology, and morphology of the superclusters extracted from Sloan Digital Sky Survey Data Release 12 (SDSS DR12) main galaxy sample, by Satadru Bag, Lauri Juhan Liivamägi, and Maret Einasto.

doi.org/10.1093/mnras/stad811

The surfaces and galaxy content of three superclusters shown in 3D. A small supercluster (left panel) has quite a spherical shape. A moderately large supercluster in the middle panel is quite elongated. The largest supercluster (right panel) is extremely galaxy rich and visually quite filamentary. (taken from Figure 5)
Daniel Pomarèdepomarede
2022-11-11

The Large Scale Structure and us

a map of the galaxy density field spanning over 700 million light years. Note how insignificant is our Local Group, that is, our home group of galaxies, in the grand scheme of things!

this is figure 8 of doi.org/10.1088/0004-6256/146/

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