Publikationen von Ortwin Gerhard

Arnaboldi, M.; Gerhard, O.: 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 9, 872283 (2022)

Tahmasebzadeh, B.; Zhu, L.; Shen, J.; Gerhard, O.; van de Ven, G.: Orbit-superposition dynamical modeling of barred galaxies. The Astrophysical Journal 941 (2), 109 (2022)

Bhattacharya, S.; Arnaboldi, M.; Caldwell, N.; Gerhard, O.; Kobayashi, C.; Hartke, J.; Freeman, K. C.; McConnachie, A. W.; Guhathakurta, P.: 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 517 (2), S. 2343 - 2359 (2022)

Arnaboldi, M.; Bhattacharya, S.; Gerhard, O.; Kobayashi, C.; Freeman, K. C.; Caldwell, N.; Hartke, J.; McConnachie, A.; Guhathakurta, P.: 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 666, A109 (2022)

Sormani, M. C.; Gerhard, O.; Portail, M.; Vasiliev, E.; Clarke, J.: The stellar mass distribution of the Milky Way’s bar: an analytical model. Monthly Notices of the Royal Astronomical Society 514 (1), S. L1 - L5 (2022)

Feng, Z.-X.; Li, Z.; Shen, J.; Gerhard, O.; Saglia, R. P.; Blaña, M.: Large-scale hydrodynamical shocks as the smoking-gun evidence for a bar in M31. The Astrophysical Journal 933 (2), 233 (2022)

Khoperskov, S.; Gerhard, O.: Chemo-kinematics of the Milky Way spiral arms and bar resonances: Connection to ridges and moving groups in the solar vicinity. Astronomy and Astrophysics 663, A38 (2022)

Hartke, J.; Arnaboldi, M.; Gerhard, O.; Coccato, L.; Merrifield, M.; Kuijken, K.; Pulsoni, C.; Agnello, A.; Bhattacharya, S.; Spiniello, C. et al.; Cortesi, A.; Freeman, K. C.; Napolitano, N. R.; Romanowsky, A. J.: 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 663, A12 (2022)

Sormani, M. C.; Sanders, J. L.; Fritz, T. K.; Smith, L. C.; Gerhard, O.; Schödel, R. S.; Magorrian, J.; Neumayer, N.; Nogueras-Lara, F.; Feldmeier-Krause, A. et al.; Mastrobuono-Battisti, A.; Schultheis, M.; Shahzamanian, B.; Vasiliev, E.; Klessen, R. S.; Lucas, P.; Minniti, D.: Self-consistent modelling of the Milky Way's nuclear stellar disc. Monthly Notices of the Royal Astronomical Society 512 (1), S. 1857 - 1884 (2022)

Wylie, S. M.; Clarke, J. P.; Gerhard, O. E.: The Milky Way’s middle-aged inner ring. Astronomy and Astrophysics 659, A80 (2022)

Clarke, J. P.; Gerhard, O.: The pattern speed of the Milky Way bar/bulge from VIRAC and Gaia. Monthly Notices of the Royal Astronomical Society 512 (2), S. 2171 - 2188 (2022)

Li, Z.; Shen, J.; Gerhard, O.; Clarke, J. P.: Gas dynamics in the Galaxy: Total mass distribution and the bar pattern speed. The Astrophysical Journal 925 (1), 71 (2022)

Tahmasebzadeh, B.; Zhu, L.; Shen, J.; Gerhard, O.; Qin, Y.: Deprojection of external barred galaxies from photometry. Monthly Notices of the Royal Astronomical Society 508 (4), S. 6209 - 6222 (2021)

Wylie, S. M.; Gerhard, O. E.; Ness, M. K.; Clarke, J. P.; Freeman, K. C.; Bland-Hawthorn, J.: A2A: 21 000 bulge stars from the ARGOS survey with stellar parameters on the APOGEE scale. Astronomy and Astrophysics 653, A143 (2021)

Scott, N.; van de Sande, J.; Sharma, S.; Bland-Hawthorn, J.; Freeman, K.; Gerhard, O.; Hayden, M. R.; McDermid, R.: Identification of an [α/Fe]—Enhanced thick disk component in an edge-on Milky Way analog. The Astrophysical Journal Letters 913 (1), L11 (2021)

Fritz, T. K.; Patrick, L. R.; Feldmeier-Krause, A.; Schödel, R.; Schultheis, M.; Gerhard, O.; Nandakumar, G.; Neumayer, N.; Nogueras-Lara, F.; Prieto, M. A.: A KMOS survey of the nuclear disk of the Milky Way - I. Survey design and metallicities. Astronomy and Astrophysics 649, A83 (2021)

Bhattacharya, S.; Arnaboldi, M.; Gerhard, O.; McConnachie, A.; Caldwell, N.; Hartke, J.; Freeman, K. C.: 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 647, A130 (2021)

Gajda, G.; Gerhard, O.; Blaña, M.; Zhu, L.; Shen, J.; Saglia, R. P.; Bender, R.: Unravelling stellar populations in the Andromeda Galaxy. Astronomy and Astrophysics 647, A131 (2021)

Pulsoni, C.; Gerhard, O.; Arnaboldi, M.; Pillepich, A.; Rodriguez-Gomez, V.; Nelson, D.; Hernquist, L.; Springel, V.: The stellar halos of ETGs in the IllustrisTNG simulations - II. Accretion, merger history, and dark halo connection. Astronomy and Astrophysics 647, A95 (2021)

Laporte, C. F. P.; Famaey, B.; Monari, G.; Hill, V.; Wegg, C.; Gerhard, O.: Bar resonances and low angular momentum moving groups in the Galaxy revealed by their stellar ages. Astronomy and Astrophysics 643, L3 (2020)