Vela: the True Scale of a Hidden Giant Structure Revealed
www.sarao.ac.za/news/vela-th...
🧪 #Cosmology #Cosmicflows
Latest posts tagged with #Cosmicflows on Bluesky
Vela: the True Scale of a Hidden Giant Structure Revealed
www.sarao.ac.za/news/vela-th...
🧪 #Cosmology #Cosmicflows
Cosmography alert 🚨
Hidden Vela Supercluster Revealed by First Hybrid Redshift & Peculiar Velocity Reconstruction
by Amber M. Hollinger and co-authors
arxiv.org/abs/2603.09339
🧪 #Cosmology #Cosmicflows
Screenshot from the frontpage of the Open Journal of Astrophysics, featuring the following article informations. Title reads "Revisiting the Great Attractor: The Local Group's streamline trajectory, cosmic velocity and dynamical fate". Authors list: Richard Stiskalek, Harry Desmond, Stuart McAlpine, Guilhem Lavaux, Jens Jasche, Michael J. Hudson. Summary reads "The study revisits the Great Attractor concept, finding that it doesn't dominate the Local Group's cosmic velocity; multiple structures contribute to the motion, with no single attractor accounting for it". Dated February 17, 2026. Background image featuring an allsky map of the depth of the inferred Classical Great Attractor basin as a function of sky position in Galactic coordinates.
Great paper on the Great Attractor, just published by The Open Journal of Astrophysics
doi.org/10.33232/001...
@ojastro.bsky.social 🧪 #Cosmology #Cosmicflows
Density field around the regions of the Coma and Perseus clusters of galaxies. Supergalactic coordinates are expressed in terms of recession velocities, in units of kilometers per second.
Constraining cosmological simulations with peculiar velocities: a forward-modeling approach
by Aurélien Valade and co-authors
arxiv.org/abs/2602.03699
#Cosmology #Cosmicflows 🧪
Cosmography alert 🚨
How well is the local Large Scale Structure of the Universe known? CosmicFlows vs. Biteau's Galaxy Catalog with Cloning
by Yifei Li and Glennys Farrar
arxiv.org/abs/2601.20808
🧪 #Cosmology #Cosmicflows
This is Figure 15 of the paper, a Mollweide projection of the distribution of the DESI DR1 Fundamental Plane sample (blue) in Right Ascension and Declination compared to the Cosmic Flows 4 catalogue (Tully et al., 2023, black) and the DESI EDR sample (Said et al., 2024, orange).
Wow 98,000 peculiar velocities
The DESI DR1 Peculiar Velocity Survey: Fundamental Plane Catalogue
by C.E. Ross and co-authors
arxiv.org/abs/2512.03226
For comparison: the Great Attractor was discovered with 400 PVs, Laniakea with 8000 PVs, South Pole Wall with 18,000 PVs
#Cosmicflows #Cosmology 🧪
A map of the Earth with a question mark. Final slide of the conference, by Cullan Howlett.
The End
Next meeting?
Let's not wait 5 years to see each other again!
#cosmicflows2025 #cosmicflows #cosmology
Trending: basins of attraction
nature.com/natastron/
nature.com/articles/s41...
rdcu.be/dVh3s
#Cosmology #Cosmicflows #galaxies #Cosmography #ΛCDM #EndOfGreatness #Laniakea #LaniakeaSupercluster #Shapley #SloanGreatWall #Astronomy #Universe #astrophysics #science #STEM #trending #altmetric
Featured
nature.com/natastron/
www.nature.com/articles/s41...
#Cosmology #Cosmicflows #galaxies #Nature #Astronomy #Universe #Astrophysics #Science #STEM
Key gravitational structures unveiled in new cosmic research
#Cosmology #Cosmicflows #galaxies #ΛCDM #News #Laniakea #Shapley #Universe #astronomy #astrophysics #science #STEM #gravitation #physics
www.spacedaily.com/reports/Key_...
New map of the universe shows mega structures
www.aip.de/en/news/cosm...
#Cosmology #Cosmicflows #galaxies #Cosmography #CosmicWeb #ΛCDM #Laniakea #supercluster #LaniakeaSupercluster #Shapley #SloanGreatWall #Astronomy #Universe #Astrophysics #science #STEM #news
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!
#Cosmicflows #Cosmography #Cosmology #CF4 #Cosmicflows4 #galaxies #astronomy #astrophysics #science #STEM #physics #gravitation
Meet the Laniakea supercluster
www.nature.com/articles/513...
#Laniakea #supercluster #galaxies #Nature #astronomy #astrophysics #cosmology #cosmography #universe #space #MilkyWay #science #research #STEM #cartography #youarehere #LaniakeaSupercluster #Galaxy #STEM #cosmicflows
in the #arXiv
DESI Peculiar Velocity Survey – Fundamental Plane
by Khaled Said and co-authors
arxiv.org/abs/2408.13842
#Cosmology #galaxies #cosmicflows #astronomy #astrophysics #science #STEM #DESI #FundamentalPlane #HubbleConstant #TullyFisher
Introducing the Mass Hyperplane (MH), to measure the peculiar velocities of 2496 galaxies at z < 0.12 from the GAMA sample
by Mustafa Burak Dogruel and co-authors
arxiv.org/abs/2405.10866
#Cosmology #galaxies #MassHyperplane #TullyFisher #FundamentalPlane #cosmicflows #astrophysics #science