Publications of Ortwin Gerhard
All genres
Journal Article (157)
1.
Journal Article
956 (1), L14 (2023)
On the α/Fe Bimodality of the M31 Disks. Astrophysical Journal, Letters 2.
Journal Article
674, A96 (2023)
The extended Planetary Nebula Spectrograph (ePN.S) early-type galaxy survey: The specific angular momentum of ETGs. Astronomy and Astrophysics 3.
Journal Article
522 (4), pp. 6010 - 6023 (2023)
The survey of planetary nebulae in Andromeda (M 31) VI. Kinematics of M 31 inner-halo substructures and comparison with major-merger simulation predictions. Monthly Notices of the Royal Astronomical Society 4.
Journal Article
9, 872283 (2022)
Kinematics of the diffuse intragroup and intracluster light in groups and clusters of galaxies in the local universe within 100 Mpc distance. Frontiers in Astronomy and Space Sciences 5.
Journal Article
941 (2), 109 (2022)
Orbit-superposition dynamical modeling of barred galaxies. The Astrophysical Journal 6.
Journal Article
517 (2), pp. 2343 - 2359 (2022)
The survey of planetary nebulae in Andromeda (M31) – IV. Radial oxygen and argon abundance gradients of the thin and thicker disc. Monthly Notices of the Royal Astronomical Society 7.
Journal Article
666, A109 (2022)
The survey of planetary nebulae in Andromeda (M31) - V. Chemical enrichment of the thin and thicker discs of Andromeda: Oxygen to argon abundance ratios for planetary nebulae and HII regions. Astronomy and Astrophysics 8.
Journal Article
514 (1), pp. L1 - L5 (2022)
The stellar mass distribution of the Milky Way’s bar: an analytical model. Monthly Notices of the Royal Astronomical Society 9.
Journal Article
933 (2), 233 (2022)
Large-scale hydrodynamical shocks as the smoking-gun evidence for a bar in M31. The Astrophysical Journal 10.
Journal Article
663, A38 (2022)
Chemo-kinematics of the Milky Way spiral arms and bar resonances: Connection to ridges and moving groups in the solar vicinity. Astronomy and Astrophysics 11.
Journal Article
663, A12 (2022)
The halo of M 105 and its group environment as traced by planetary nebula populations - II. Using kinematics of single stars to unveil the presence of intragroup light around the Leo I galaxies NGC 3384 and M 105. Astronomy and Astrophysics 12.
Journal Article
512 (1), pp. 1857 - 1884 (2022)
Self-consistent modelling of the Milky Way's nuclear stellar disc. Monthly Notices of the Royal Astronomical Society 13.
Journal Article
659, A80 (2022)
The Milky Way’s middle-aged inner ring. Astronomy and Astrophysics 14.
Journal Article
512 (2), pp. 2171 - 2188 (2022)
The pattern speed of the Milky Way bar/bulge from VIRAC and Gaia. Monthly Notices of the Royal Astronomical Society 15.
Journal Article
925 (1), 71 (2022)
Gas dynamics in the Galaxy: Total mass distribution and the bar pattern speed. The Astrophysical Journal 16.
Journal Article
508 (4), pp. 6209 - 6222 (2021)
Deprojection of external barred galaxies from photometry. Monthly Notices of the Royal Astronomical Society 17.
Journal Article
653, A143 (2021)
A2A: 21 000 bulge stars from the ARGOS survey with stellar parameters on the APOGEE scale. Astronomy and Astrophysics 18.
Journal Article
913 (1), L11 (2021)
Identification of an [α/Fe]—Enhanced thick disk component in an edge-on Milky Way analog. The Astrophysical Journal Letters 19.
Journal Article
649, A83 (2021)
A KMOS survey of the nuclear disk of the Milky Way - I. Survey design and metallicities. Astronomy and Astrophysics 20.
Journal Article
647, A130 (2021)
The survey of planetary nebulae in Andromeda (M 31): III. Constraints from deep planetary nebula luminosity functions on the origin of the inner halo substructures in M 31. Astronomy and Astrophysics