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researcher

R. Penna

42 papers hereh-index 212.3k citations59 works total

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

author position
  • sole author17
  • first author8
  • middle author11
  • last author3

Across the 39 of 42 papers where every author was matched, so the position is known.

fields
  • astro-ph.HE18
  • hep-th14
  • gr-qc5
  • astro-ph3
  • astro-ph.IM2
same name
  • R. Penna — 2 papers, h 5

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
20042026
most citedGRMHD Simulations of Magnetized Advection Dominated Accretion on a Non-Spinning Black Hole: Role of Outflows

504 citations · 2.7k across the 41 of their papers we have counts for

collaborators
Showing 2004Show all

1 paper · 1 filter

astro-ph2004★ 19 cited

The decay of interplanetary coronal mass ejections and forbush decrease recovery times

Robert F. Penna, Alice C. Quillen

We investigate the relation between Forbush cosmic ray decrease recovery time and coronal mass ejection transit time between the Sun and Earth. We identify 17 Forbush decreases fro…

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