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#LocalVoid

Daniel Pomarèdepomarede
2024-12-02

A map of the structure surrounding the Local Void

In this map our Milky Way galaxy lies at the origin of the red-green-blue orientation arrows, each 200 million lightyears in length.

☑️ this is Fig.1 of ui.adsabs.harvard.edu/abs/2019
☑️ more insights by APOD: apod.nasa.gov/apod/ap190806.ht

a cosmographic map featuring the cosmological large scale structure in our local cosmic neighborhood. The density field is displayed as semi-transparent isosurfaces, colored grey for the the lower isocontour value, and colored in nuances of red for five higher levels. The resulting structure is filamentary, with high-density knots at the filaments' crossing, an architecture typical of the Cosmic Web. Three colored arrows materialize the cardinal axes of the Supergalactic Coordiante System, centered at our location. Several important actors of our local cosmography are named: Milky Way, Virgo, Arrowhead, Great Attractor, Perseus-Pisces, Coma, Arch, Hercules. The name of the astronomer leading the study is inprinted in the lower right corner of the figure, reading R. Brent Tully. All these elements are drawn against a white background.
Daniel Pomarèdepomarede
2024-07-15

O mistério do Local Cosmic Void

by Camila Franco and co-authors
periodicos.ufes.br/astronomia/

Daniel Pomarèdepomarede
2024-06-25

in the

Beyond the Local Void: A comprehensive view on the origins of the Amaterasu particle

by Nadine Bourriche and Francesca Capel
arxiv.org/abs/2406.16483

Daniel Pomarèdepomarede
2024-06-04

in the

a study of the effects of local cosmic inhomogeneities (inferred from Cosmicflows-4) on the gravitational wave event rate

by Gonzalo Morras and Juan García-Bellido
arxiv.org/abs/2406.00691

Daniel Pomarèdepomarede
2023-12-13

in the

The SARAO MeerKAT 1.3 GHz Galactic Plane Survey

... with new insights on what's lurking in the Zone of Avoidance:
⭐️ The Vela Supercluster
⭐️ The Great Attractor
⭐️ The Local Void

by Sharmila Goedhart and co-authors
arxiv.org/abs/2312.07275

Daniel Pomarèdepomarede
2023-12-11

A search for dwarf galaxies in the Local Void, using data of the DESI Legacy Imaging Surveys

by Igor Karachentsev and co-authors

arxiv.org/abs/2312.04930

📷 Images of 12 new dwarf galaxies from DESI Legacy Imaging Surveys found in the Local Void region. Each image size is 2′ × 2′. North is to the top and East is to the left.

Daniel Pomarèdepomarede
2023-12-11

in the

galaxies in the Local Void, detected by the SARAO MeerKAT Galactic Plane Survey

by Sushma Kurapati and co-authors
arxiv.org/abs/2312.05237

📷 One of the 64 antennas of the MeerKAT radio telescope, located in the Karoo, South Africa.

Daniel Pomarèdepomarede
2023-11-27

The Amaterasu paper is on
arxiv.org/abs/2311.14231

Congratulations to my friend Noémie Globus who co-authored this discovery!

Check out this Research Highlight by her: noemieglobus.com/post/a-new-ex

Daniel Pomarèdepomarede
2023-11-24

The most powerful cosmic ray since the Oh-My-God particle puzzles scientists

Scientists spot a particle of intense energy, but explaining where it came from might require some new physics.
✍️ by Gemma Conroy
nature.com/articles/d41586-023

Daniel Pomarèdepomarede
2023-11-24

Discovery of the Amaterasu 240 EeV cosmic ray particle, named after the goddess of the sun in Japanese mythology, by the Telescope Array observatory in Utah. This mysterious event appears to have emerged from the Local Void. Intriguing!

theguardian.com/science/2023/n

Amaterasu emerging from the cave, Ama-no-Iwato, to which she once retreated (detail of woodblock print by Kunisada)
Daniel Pomarèdepomarede
2023-03-17

Meet our neighbour, The Local Void. Gaze into it, puny humans 👀 👀 👀

A paper by @fraser writing for Universe Today on our 3D mapping of The Void: universetoday.com/142923/meet-

Daniel Pomarèdepomarede
2022-12-13

Check out this infographic poster by Kurzgesagt

shop-eu.kurzgesagt.org/collect

An infographic poster standing against a wall, among decorative objects with a scientific touch such as a microscope and a terrestrial globe. The poster central component is a colorful map of the cosmic density field and it harbors a title "The Laniakea Supercluster", several insets, and labels pinpointing several components of the map.
Daniel Pomarèdepomarede
2022-12-09

There's a huge void at the edge of the Milky Way and it's getting bigger and emptier.

Check out this paper by Aristos Georgiou writing for Newsweek on how astronomers have cast new light on a huge, empty void that encircles our galaxy, the Milky Way: newsweek.com/huge-void-edge-mi

The study published in the Astrophysical Journal: doi.org/10.3847/1538-4357/ab25

A three-dimensional map of the cosmic density field with labels pinpointing the Milky Way, the Local Void, the Great Attractor, Virgo, Arrowhead, Coma, Perseus-Pisces, the Arch, and Hercules. Isosurfaces of the density field are materialized by means of a grey polygon associated to to a low density value, and polygons colored in nuances of red for higher values. Three colored red, green, blue arrows emanating from the origin at our Milky Way galaxy's location are associated with the cardinal axes of the supergalactic coordinate system.
Daniel Pomarèdepomarede
2022-11-26

A video map of the Local Void, a large underdense region of the Universe, on the outskirts of which is located our galaxy the Milky Way, and of its relation with other cosmic voids and major overdense neighbors.
vimeo.com/326346346

Research paper: doi.org/10.3847/1538-4357/ab25

University of Hawai'i News: hawaii.edu/news/2019/07/22/vas

Check out the wonderful paper Corey S. Powell wrote on this research: nbcnews.com/mach/science/maste

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