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Obinna Umeh

39 papers hereh-index 211.4k citations48 works total

Matching runs newest-first, so older work may not be attached to this profile yet.

author position
  • sole author10
  • first author9
  • middle author12
  • last author8

Across the 39 of 39 papers where every author was matched, so the position is known.

fields
  • astro-ph.CO35
  • gr-qc3
  • hep-th1
same name
  • Obinna Umeh — 1 paper

Either other researchers who publish under this name, or the same person where the external sources have not merged their records.

identity via Semantic Scholar / OpenAlex

activity
20092026
most citedDoes the growth of structure affect our dynamical models of the universe? The averaging, backreaction and fitting problems in cosmology

220 citations · 1.2k across the 39 of their papers we have counts for

collaborators
Showing 2017Show all

3 papers · 1 filter

astro-ph.CO2017★ 24 cited

Imprints of local lightcone projection effects on the galaxy bispectrum. III Relativistic corrections from nonlinear dynamical evolution on large-scales

Sheean Jolicoeur, Obinna Umeh, Roy Maartens +1

The galaxy bispectrum is affected on equality scales and above by relativistic observational effects, at linear and nonlinear order. These lightcone effects include local contribut…

astro-ph.CO2017★ 20 cited

A scale dependent bias on linear scales: the case for HI intensity mapping at z=1

Aurélie Pénin, Obinna Umeh, Mario Santos

Neutral hydrogen (HI) will soon be the dark matter tracer observed over the largest volumes of Universe thanks to the 21 cm intensity mapping technique. To unveil cosmological info…

astro-ph.CO2017★ 25 cited

Imprints of local lightcone projection effects on the galaxy bispectrum. II

Sheean Jolicoeur, Obinna Umeh, Roy Maartens +1

General relativistic imprints on the galaxy bispectrum arise from observational (or projection) effects. The lightcone projection effects include local contributions from Doppler a…

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Not affiliated with arXiv. Researcher data from Semantic Scholar (ODC-BY) and OpenAlex.