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#Cosmicflows

Daniel Pomarèdepomarede
2025-01-29

On my way to the Cosmic Flows 2025 Conference, that is going to be held at Tamborine Mountain near Brisbane, in Australia.

indico.global/event/12931/

This is my first conference in 5 years - last one was the AAS235 in Honolulu back in January 2020, before the Covid crisis...

A colorful conference poster. Title of conference reads "Cosmic Flows 2025". Location reads "Cedar Creek Lodges, Brisbane, Australia". Dates from February 3 to February 7, 2025. The topics list reads "VELOCITY FIELD RECONSTRUCTION", "THEORY AND SIMULATIONS", "DIRECT PV MEASUREMENTS", "COSMOLOGICAL APPLICATIONS" in capital letters. Lists of persons belonging to the scientific organizing committe and local organizing committee are given. The images featured on the poster are: 1) an artist's view of the Laniakea Supercluster of galaxies, 2) a composite image with Ayers Rock under the Milky Way, with the silouette of a kangaroo in the foreground, and 3) a view of the forest at Tomborine Mountain.
Daniel Pomarèdepomarede
2025-01-03

Les courants cosmiques et les bassins d'attraction au menu du nouveau numéro de l'Astronomie, avec un papier d'actualité de Suzy Collin-Zahn sur notre article récent publié dans Nature Astronomy!

/Cosmic flows and basins of attraction are on the menu of the new issue of l'Astronomie, with a news story by Suzy Collin-Zahn on our recent article published in Nature Astronomy!

➡️ lastronomie.fr/numero-en-cours/

Le sommaire du numéro de janvier 2025 du magazine l'Astronomie. On peut y voir en haut une partie d'une représentation de Laniakea, notre superamas de galxies. Dans la rubrique Actualités, un papier de Suzy Collin-Zahn, titré Un nouveau concept dans l'Univers: les "bassins d'attraction". Parmi de nombreux autres articles, on retrouve Ryugu, Solar Parker Probe, ou bien la nébuleuse planétaire NGC 1501 dans la Girafe.
Daniel Pomarèdepomarede
2024-12-23

These two covers do get along together quite nicely!

☑️ nature.com/nature/volumes/513/
☑️ nature.com/natastron/volumes/8

A cover of the Nature Journal, dated 4 September 2014, volume 513, issue number 7516, featuring a colorful map of the basin of attraction inside which our galaxy the Milky Way is located. This structure is roughly shaped like a heart, inside which thousands of very thin flowlines are seen converging onto a unique attractor. A particular spot in the periphery of this object is pinpointed with a label that reads "YOU ARE HERE". Outside of this structure, more flowlines converge on separate, neighbor attractors. White speckles peperred across the whole scene represent positions of galaxies. A title reads Laniakea, with a subtitle reading The galaxy supercluster that includes the Milky Way. Three other research papers in various science areas are mentioned in the lower section of the cover. Credits: Cover art: Mark A. Garlick / source: Daniel Pomarède.A cover of the Nature Astronomy journal, dated December 2024, Volume 8, issue number 12, featuring a three-dimensional visualization of the cosmic velocity field inferred from the Cosmicflows-4 catalog of galaxies' distances and velocities. This map spans two billion lightyears from top to bottom. The velocity field is mapped by means of tens of thousands of very thin streamlines, seeded at the positions of the catalog's galaxies. Streamlines are shown white and semi-transparent, against a black background. They exhibit a very complex pattern with multiple attractors, seen as points of convergence of the lines. A text reads Galaxies from wherever flock together. Credits: Image: Daniel Pomarède, Institut de Recherche sur les Lois Fondamentales de l’Univers, CEA, Université Paris-Saclay. Cover design: Bethany Vukomanovic.
Daniel Pomarèdepomarede
2024-12-21

Wowzer! Map of cosmic flows, by yours truly, makes it to the cover of the Nature Astronomy journal.

"Galaxies from
wherever flock
together"

I'm no poet, but could this be a Haiku?

nature.com/natastron/volumes/8

Credits:
Image: Daniel Pomarède, Institut de Recherche sur les Lois Fondamentales de l’Univers, CEA, Université Paris-Saclay.
Cover design: Bethany Vukomanovic.

A cover of the Nature Astronomy journal, dated December 2024, Volume 8, issue number 12, featuring a three-dimensional visualization of the cosmic velocity field inferred from the Cosmicflows-4 catalog of galaxies' distances and velocities. This map spans two billion lightyears from top to bottom. The velocity field is mapped by means of tens of thousands of very thin streamlines, seeded at the positions of the catalog's galaxies. Streamlines are shown white and semi-transparent, against a black background. They exhibit a very complex pattern with multiple attractors, seen as points of convergence of the lines. A text reads Galaxies from wherever flock together.
Daniel Pomarèdepomarede
2024-10-08

Trending: basins of attraction

nature.com/natastron/
nature.com/articles/s41550-024
rdcu.be/dVh3s

Daniel Pomarèdepomarede
2024-10-07

Our Galaxy appears to be part of structure so large it challenges our models of Cosmology

by James Felton for IFLScience
iflscience.com/our-galaxy-appe

Daniel Pomarèdepomarede
2024-10-04

Taylor Swift as a Basin of Attraction in the Local Universe

Daniel Pomarèdepomarede
2024-10-01

Trending

nature.com/natastron/
nature.com/articles/s41550-024

Daniel Pomarèdepomarede
2024-09-29

Featured

nature.com/natastron/
nature.com/articles/s41550-024

Daniel Pomarèdepomarede
2024-09-29

Key gravitational structures unveiled in new cosmic research

A group of international scientists has made significant strides in understanding the large-scale structure of the Universe by identifying critical gravitational regions, termed "basins of attraction."

spacedaily.com/reports/Key_Gra

Daniel Pomarèdepomarede
2024-09-27

New map of the universe shows mega structures

aip.de/en/news/cosmography-meg

Daniel Pomarèdepomarede
2024-09-27

Cosmography Update

A 3D map of basins of attractions in the Local Universe, inferred from Cosmicflows-4 and based on a probabilistic approach, gives new insights on our cosmic whereabouts. We have not reached the "End of Greatness" yet!

rdcu.be/dVhDz

Daniel Pomarèdepomarede
2024-09-27

Advanced data shed light on gravitational basins of attraction that shape the movement of galaxies

A new study has mapped out the gravitational basins of attraction in the local universe, offering fresh insights into the large-scale cosmic structures that shape the movement of galaxies. The study has been published in

phys.org/news/2024-09-advanced

Daniel Pomarèdepomarede
2024-09-26

So, with a group of 7 we've been working these past two years on the reconstruction and cosmography of Cosmicflows-4, and the result will go public tomorrow, stay tuned!

Daniel Pomarèdepomarede
2024-09-04

Cosmography archives

1982, an early detailed mapping of the velocity field of the Local Supercluster

by Aaronson, Huchra, Mould, Schechter, and Tully
ui.adsabs.harvard.edu/abs/1982

Daniel Pomarèdepomarede
2024-09-03

Meet the Laniakea supercluster

nature.com/articles/513041a

Daniel Pomarèdepomarede
2024-09-03

Earth's new address: 'Solar System, Milky Way, Laniakea'

nature.com/articles/nature.201

Daniel Pomarèdepomarede
2024-09-03

Laniakea: Our home supercluster

youtu.be/rENyyRwxpHo

Daniel Pomarèdepomarede
2024-09-03

A Nature Grand Slam

Beside making it to the cover, the discovery is the subject of three editorial and news articles, of a worldwide press release, and of a Nature video that will be viewed by more than 8 million people!

Daniel Pomarèdepomarede
2024-09-03

Ten years ago on this day, publication of the discovery of Laniakea, our Home Supercluster of galaxies

nature.com/articles/nature13674

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