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J. MacDonald

28 papers hereh-index 271.9k citations143 works total

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

author position
  • first author11
  • middle author8
  • last author6

Across the 25 of 28 papers where every author was matched, so the position is known.

fields
  • astro-ph.SR19
  • astro-ph8
  • astro-ph.CO1
same name
  • J. Macdonald — 20 papers, h 24
  • J. Macdonald — 12 papers, h 8
  • J. Macdonald — 12 papers, h 6
  • J. Macdonald — 7 papers, h 8
  • J. MacDonald — 5 papers, h 5
  • J. Macdonald — 3 papers, h 20

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
19962023
most citedThe cosmic production of Helium

100 citations · 753 across the 28 of their papers we have counts for

collaborators
Showing 1996Show all

1 paper · 1 filter

astro-ph1996★ 86 cited

Ages of globular clusters: a new approach

R. Jimenez, P. Thejll, U. Jorgensen +2

We have applied a new method to analyze the horizontal branch (HB) morphology in relation to the distribution of stars near the red giant branch (RGB) tip for the globular clusters…

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