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O. Gerhard

61 papers hereh-index 272.4k citations61 works total

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

author position
  • sole author1
  • middle author33
  • last author14

Across the 48 of 61 papers where every author was matched, so the position is known.

fields
  • astro-ph.GA31
  • astro-ph21
  • astro-ph.CO7
  • astro-ph.IM1
  • astro-ph.SR1
same name
  • O. Gerhard — 185 papers, h 64
  • O. Gerhard — 8 papers, h 2
  • O. Gerhard — 5 papers, h 2
  • O. Gerhard — 3 papers, h 2

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
19962026
most citedA geometric distance measurement to the Galactic Center black hole with 0.3% uncertainty

826 citations · 5.1k across the 61 of their papers we have counts for

collaborators
Showing 2009Show all

3 papers · 1 filter

astro-ph.CO2009

Metallicity of the polar disk in NGC4650A: constraints for cold accretion scenario

M. Spavone, E. Iodice, M. Arnaboldi +3

We used high resolution spectra in the optical and near-infrared wavelength range to study the abundance ratios and metallicities of the HII regions associated with the polar disk…

astro-ph.CO2009★ 31 cited

Self-gravitating warped discs around supermassive black holes

A. Ulubay-Siddiki, O. Gerhard, M. Arnaboldi

We consider warped equilibrium configurations for stellar and gaseous disks in the Keplerian force-field of a supermassive black hole, assuming that the self-gravity of the disk pr…

astro-ph.GA2009★ 383 cited

An Extremely Top-Heavy IMF in the Galactic Center Stellar Disks

H. Bartko, F. Martins, S. Trippe +19

We present new observations of the nuclear star cluster in the central parsec of the Galaxy with the adaptive optics assisted, integral field spectrograph SINFONI on the ESO/VLT. O…

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