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F. Hamann

121 papers hereh-index 477.1k citations282 works total

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

author position
  • sole author7
  • first author18
  • middle author74
  • last author12

Across the 111 of 121 papers where every author was matched, so the position is known.

fields
  • astro-ph.GA54
  • astro-ph41
  • astro-ph.CO23
  • astro-ph.HE3
same name
  • F. Hamann — 10 papers, h 10

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
19972023
most citedThe Sloan Digital Sky Survey Quasar Catalog: twelfth data release

445 citations · 6.6k across the 120 of their papers we have counts for

collaborators
Showing 2004Show all

1 paper · 1 filter

astro-ph2004★ 111 cited

Active Galactic Nuclei Emission-Line Properties Versus Eddington Ratio

Craig Warner, Fred Hamann, Matthias Dietrich

We analyze UV spectra for a large sample of 578 Type 1 AGNs and derive Eddington ratios, L/Ledd, from the bolometric luminosities and emission line widths for each object in the sa…

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