2026 Ortwin Gerhard: Physics Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Physics	109	1222	1156	103	98	465	38578

Discipline name

D-Index

World Ranking

Current World Ranking

National Ranking

Current National Ranking

Publications

Citations

Physics

109

1222

1156

103

465

38578

Research.com Recognitions

2017 - Brouwer Award, Division on Dynamical Astronomy

Overview

Ortwin Gerhard is a researcher affiliated with the Max Planck Society in Germany. Their work primarily spans the field of Physics and Astronomy, with a significant focus on Astronomy and Astrophysics.

The main subjects of their research include:

Stellar, planetary, and galactic studies
Astronomy and Astrophysical Research
Astrophysics and Star Formation Studies
Galaxies: Formation, Evolution, Phenomena
Gamma-ray bursts and supernovae
Astronomical Observations and Instrumentation
Astrophysical Phenomena and Observations

Ortwin Gerhard has contributed authorship to a number of recent academic papers, among them:

"Modeling the orbital motion of Sgr A*'s near-infrared flares," 2020, Astronomy and Astrophysics
"Three mechanisms for bar thickening," 2020, Monthly Notices of the Royal Astronomical Society
"Self-consistent modelling of the Milky Way's nuclear stellar disc," 2022, IrInSubria (University of Insubria)
"The pattern speed of the Milky Way bar/bulge from VIRAC and Gaia," 2022, Monthly Notices of the Royal Astronomical Society
"Hic sunt dracones: Cartography of the Milky Way spiral arms and bar resonances with Gaia Data Release 2," 2020, Astronomy and Astrophysics

Frequent collaborators in their research include:

M. Arnaboldi
Souradeep Bhattacharya
Johanna Hartke
K. C. Freeman
Chiaki Kobayashi

Ortwin Gerhard's work has been published across several scientific venues. Their most frequent publication outlets are:

arXiv (Cornell University)
Astronomy and Astrophysics
Monthly Notices of the Royal Astronomical Society
Proceedings of the International Astronomical Union
The Astrophysical Journal

In addition to their core research in Astronomy and Astrophysics, they engage with subfields including Instrumentation, Computational Mechanics, Statistical and Nonlinear Physics, and Biomedical Engineering. Their publication record shows a diverse scientific interest, with the majority concentrating on astrophysical phenomena and observational studies.

Best Publications

The Galaxy in Context: Structural, Kinematic, and Integrated Properties

Joss Bland-Hawthorn;Ortwin Gerhard

1461
Citations
The radial velocity experiment (RAVE): First data release

M Steinmetz;A Siebert;H Enke;C Boeche

1354
Citations
The Gaia-ESO Public Spectroscopic Survey

G. Gilmore;S. Randich;M. Asplund;J. Binney

1052
Citations
The Radial Velocity Experiment (RAVE): Fourth Data Release

Andrea Kunder;Georges Kordopatis;Matthias Steinmetz;Tomaž Zwitter

941
Citations
Understanding the kinematics of Galactic Centre gas

James Binney;Ortwin E. Gerhard;Antony A. Stark;John Bally

842
Citations
The Radial Velocity Experiment (RAVE): Fifth Data Release

Andrea Kunder;Georges Kordopatis;Matthias Steinmetz;Tomaz Zwitter

805
Citations
From Rings to Bulges: Evidence for Rapid Secular Galaxy Evolution at z ~ 2 from Integral Field Spectroscopy in the SINS Survey

R. Genzel;A. Burkert;N. Bouché;G. Cresci

748
Citations
Line-of-sight velocity profiles in spherical galaxies: breaking the degeneracy between anisotropy and mass

Ortwin E. Gerhard

608
Citations
Dynamical Family Properties and Dark Halo Scaling Relations of Giant Elliptical Galaxies

Ortwin Gerhard;Andi Kronawitter;R. P. Saglia;Ralf Bender

597
Citations
Mapping the three-dimensional density of the galactic bulge with VVV red clump stars

Christopher Wegg;Ortwin Gerhard

573
Citations
Stellar dynamics in the Galactic centre: Proper motions and anisotropy

R. Genzel;C. Pichon;A. Eckart;O. E. Gerhard

564
Citations
An Extremely Top-Heavy IMF in the Galactic Center Stellar Disks

H. Bartko;F. Martins;S. Trippe;T. K. Fritz

516
Citations
Line-of-sight velocity distributions of elliptical galaxies

R. Bender;R. P. Saglia;O. E. Gerhard

515
Citations
The photometric structure of the inner Galaxy

James Binney;Ortwin Gerhard;David Spergel

488
Citations
A geometric distance measurement to the Galactic Center black hole with 0.3% uncertainty

R. Abuter;A. Amorim;M. Bauboeck;J.P. Berger

485
Citations
The structure of the Milky Way's bar outside the bulge

Christopher Wegg;Ortwin Gerhard;Matthieu Portail

466
Citations
Dynamical modelling of the galactic bulge and bar: the Milky Way's pattern speed, stellar and dark matter mass distribution

Matthieu Portail;Ortwin Gerhard;Christopher Wegg;Melissa Ness

438
Citations
AN EXTREMELY TOP-HEAVY INITIAL MASS FUNCTION IN THE GALACTIC CENTER STELLAR DISKS

H. Bartko;F. Martins;S. Trippe;T. K. Fritz

410
Citations
Gas physics, disk fragmentation, and bulge formation in young galaxies

A. Immeli;M. Samland;O. Gerhard;P. Westera

408
Citations
A geometric distance measurement to the Galactic center black hole with 0.3% uncertainty

R. Abuter;A. Amorim;M. Bauböck

329
Citations