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#oscillations

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Last but not least, a new measurement of the Hubble Constant is obtained by analyzing the geometrical properties of Ho'oleilana: 76.9 (+8.2)(-4.8) km/s /Mpc

This value is consistent with other direct local probes, and further exacerbates the "Hubble tension" in the ΛCDM model.

#ho'oleilana #hooleilana #cosmology #bao #baryon #acoustic #oscillations #astronomy #astrophysics #astrodon #universe #space #science #research #discovery #physics #theory #bigbang #lcdm #hubble #hubbleconstant

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A major aspect of the study presented in this paper is the analysis conducted by Cullan Howlett to understand the significance of this discovery against a physical BAO model, using in particular mock galaxy catalogs with and without BAO features.

#ho'oleilana #hooleilana #cosmology #bao #baryon #acoustic #oscillations #astronomy #astrophysics #astrodon #universe #space #science #research #discovery #physics #theory #bigbang #lcdm

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A video visualization of the cosmography of Ho'oleilana is part of the paper. Major components in proximity to the shell are highlighted and identified by name. The historic Boötes Void lies interior to the shell structure.

vimeo.com/814958164

#ho'oleilana #hooleilana #cosmology #bao #baryon #acoustic #oscillations #astronomy #astrophysics #astrodon #universe #space #science #research #discovery #physics #theory #bigbang #lcdm #video #visualization #vimeo

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The cosmography of Ho'oleilana is pretty amazing: its shell includes some of the largest known structures of the universe: the Sloan Great Wall, CfA Great Wall, Hercules Supercluster, Corona-Borealis Supercluster... At its core is the Boötes Supercluster.

skfb.ly/oKRIN

#ho'oleilana #hooleilana #cosmology #bao #baryon #acoustic #oscillations #astronomy #astrophysics #astrodon #universe #space #science #research #discovery #physics #theory #bigbang #lcdm #sketchfab #visualization

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Ho'oleilana was found unexpectedly in the distribution of galaxies of the Cosmicflows-4 Catalog, within its SDSS PV "Peculiar Velocities" subsample of early-type galaxies, derived from fundamental plane measurements.

Interactive visualization:
irfu.cea.fr/Projets/COAST/Ho'o

#ho'oleilana #hooleilana #cosmology #bao #baryon #acoustic #oscillations #astronomy #astrophysics #astrodon #universe #space #science #research #discovery #physics #theory #bigbang #lcdm

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By contrast, the discovery of Ho'oleilana represents the 1st direct evidence of a BAO, as an individual entity and a new confirmation of the standard model of cosmology.

A discovery made 53 years after the prediction - that's more time elapsed than for e.g. Higgs and his boson!

#ho'oleilana #hooleilana #cosmology #bao #baryon #acoustic #oscillations #astronomy #astrophysics #astrodon #universe #space #science #research #discovery #physics #theory #bigbang #lcdm

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Acoustic waves generated in the hot plasma of the early universe became imprinted in baryon fluctuations. The prediction was made in 1970 by Jim Peebles and others. Indirect evidence of the BAO phenomenom came in 2005 by observing a peak in the pair-wise separations of galaxies.

#ho'oleilana #hooleilana #cosmology #bao #baryon #acoustic #oscillations #astronomy #astrophysics #astrodon #universe #space #science #research #discovery #physics #theory #bigbang #lcdm

#introduction time...

My work focuses on neuronal #oscillations, the circuit mechanisms that generate them, their role in cognitive processes like #attention and #decisionmaking, and on optimising transcranial #BrainStimulation to alter brain function.

Other interests: #DataViz, team science, improving #reproducibility in neuroimaging.

Right now I'm a post-doc at the University of Oxford, but I'm incredibly excited to be joining the University of Birmingham as an Assistant Professor in a few months.

Looking forward to meeting and talking to people on here 👍