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researcher

J. A. Defreitaspacheco

46 papers hereh-index 191.1k citations98 works total

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

author position
  • sole author2
  • first author8
  • middle author11
  • last author21

Across the 42 of 46 papers where every author was matched, so the position is known.

fields
  • astro-ph21
  • astro-ph.CO10
  • gr-qc9
  • astro-ph.HE4
  • astro-ph.GA2

identity via Semantic Scholar / OpenAlex

activity
19942024
most citedHubble flow around Fornax cluster of galaxies

135 citations · 984 across the 46 of their papers we have counts for

collaborators
Showing 2015Show all

2 papers · 1 filter

astro-ph.CO2015★ 30 cited

Dark matter velocity dispersion effects on CMB and matter power spectra

O. F. Piattella, L. Casarini, J. C. Fabris +1

Effects of velocity dispersion of dark matter particles on the CMB TT power spectrum and on the matter linear power spectrum are investigated using a modified CAMB code. Cold dark…

astro-ph.GA2015★ 8 cited

Testing two alternatives theories to dark matter with the Milky Way dynamics

P. L. C. de Oliveira, J. A. de Freitas Pacheco, G. Reinisch

Two alternative theories to dark matter are investigated by testing their ability to describe consistently the dynamics of the Milky Way. The first one refers to a modified gravity…

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