Dr Obinna Umeh
Research outputs
2023
Vorticity generation in cosmology and the role of shell crossing
Umeh, O. C.
1 Dec 2023, In: Journal of Cosmology and Astroparticle Physics. 2023, 12, 38p., 043
Research output: Article
2022
Emergence of smooth distance and apparent magnitude in a lumpy Universe
Umeh, O.
7 Nov 2022, In: Classical and Quantum Gravity. 39, 23, 15p., 235006
Research output: Article
The art of building a smooth cosmic distance ladder in a perturbed universe
Umeh, O. C.
11 Aug 2022, In: Journal of Cosmology and Astroparticle Physics. 2022, 08, 42p., 028
Research output: Article
Consequences of using a smooth cosmic distance in a lumpy universe: I
Umeh, O. C.
21 Jul 2022, In: Physical Review D. 106, 02, 20p., 023514
Research output: Article
2021
Testing the equivalence principle on cosmological scales using the odd multipoles of galaxy cross-power spectrum and bispectrum
Umeh, O., Koyama, K., Crittenden, R.
23 Aug 2021, In: Journal of Cosmology and Astroparticle Physics. 2021, 08, 29p., 049
Research output: Article
Detecting the relativistic bispectrum in 21cm intensity maps
Jolicoeur, S., Maartens, R., Weerd, E. M. D., Umeh, O., Clarkson, C., Camera, S.
22 Jun 2021, In: Journal of Cosmology and Astroparticle Physics. 2021, 06, p. 1-22, 22p., 039
Research output: Article
The effect of finite halo size on the clustering of neutral hydrogen
Umeh, O., Maartens, R., Padmanabhan, H., Camera, S.
14 Jun 2021, In: Journal of Cosmology and Astroparticle Physics. 06, 22p., 027
Research output: Article
Optimal computation of anisotropic galaxy three point correlation function multipoles using 2DFFTLOG formalism
Umeh, O.
14 May 2021, In: Journal of Cosmology and Astroparticle Physics. 2021, 05, 32p., 035
Research output: Article
Local primordial non-Gaussianity in the relativistic galaxy bispectrum
Maartens, R., Jolicoeur, S., Umeh, O., Weerd, E. M. D., Clarkson, C.
7 Apr 2021, In: Journal of Cosmology and Astroparticle Physics. 2021, 4, p. 1-30, 30p., 013
Research output: Article
2020
Multipoles of the relativistic galaxy bispectrum
Weerd, E. M. d., Clarkson, C., Jolicoeur, S., Maartens, R., Umeh, O.
11 May 2020, In: Journal of Cosmology and Astroparticle Physics. 2020, 05, p. 1-36, 36p., 018
Research output: Article