Dynamics of galaxies, star clusters and planetary systems

Practice groups

• Group S (Just/Spurzem)
  21 participants
  Mönchhofstr. 12-14 / ARI SR, Wed 14:00 - 15:30

Direct Links to topics of R. Spurzem , A. Just

File to download with abstracts

Supervisor: R. Spurzem

Subject Classification:

Galaxies/Galactic Nuclei: S8 (N-body sim.); S9 (theory)

Star Clusters: S6, S7 (grav. waves, dynamics, stellar evolution), S10 (modelling), S11 (few body, stellar evolution), S15-S17 (young star clusters, multiple populations)

Planetary Systems: S2, S3 (theory/modelling); S41-43 (theory/compare observations), S5 (observation); S12-S14

• S1. [taken] Rantala, A., Pihajoki, P., Mannerkoski, M., Johansson, P. H., Naab, T., 2020: MSTAR - a fast parallelized algorithmically regularized integrator with minimum spanning tree coordinates
• S2. [taken] Batygin, K., Adams, F. C., Batygin, Y. K., Petigura, E. A., 2020: Dynamics of Planetary Systems within Star Clusters: Aspects of the Solar System's Early Evolution
• S3.  [taken] Voelkel, Oliver; Klahr, Hubert; Mordasini, Christoph and 2 more: Effect of pebble flux-regulated planetesimal formation on giant planet formation.
• S4 [taken] (2-3 people).  Emsenhuber, Alexandre; Mordasini, Christoph; Burn, Remo and 3 more: The New Generation Planetary Population Synthesis (NGPPS). I. Bern global model of planet formation and evolution, model tests, and emerging planetary systems; II. Planetary population of solar-like stars and overview of statistical results; III. Warm super-Earths and cold Jupiters: A weak occurrence correlation, but with a strong architecture-composition link
• S5. [taken] Morales, J. C.; Mustill, A. J.; Ribas, I.; Davies, M. B.; and more: A giant exoplanet orbiting a very-low-mass star challenges planet formation models
• S6. [taken] Fragione, Giacomo; Loeb, Abraham; Rasio, Frederic A.: On the Origin of GW190521-like Events from Repeated Black Hole Mergers in Star Clusters
• S7. Abbott, R.; Abbott, T. D.; Abraham, S. and 1252 more (LIGO/Virgo Scientific Collaboration): Properties and Astrophysical Implications of the 150 M_? Binary Black Hole Merger GW190521
• S8. [taken] Zivancev, Charles; Ostriker, Jeremiah; Küpper, Andreas H. W.: The fates of merging supermassive black holes and a proposal for a new class of X-ray sources
• S9.  [taken] Fabj, Gaia; Nasim, Syeda S.; Caban, Freddy and 3 more: Aligning Nuclear Cluster Orbits with an Active Galactic Nucleus Accretion Disk
• S10. [taken] Kremer, Kyle; Spera, Mario; Becker, Devin and 6 more: Populating the upper black hole mass gap through stellar collisions in young star clusters
• S11. Belczynski, K.; Banerjee, S.: Formation of low-spinning 100 M_sun black holes
• S12. [taken] Ataiee, S., Kley, W., The role of disc torques in forming resonant planetary systems, 2020, Astronomy and Astrophysics, 635, A204
• S13. [taken] Glaser, J. P., McMillan, S. L. W., Geller, A. M., Thornton, J. D., Giovinazzi, M. R., TYCHO: Realistically Simulating Exoplanets within Stellar Clusters. I. Improving the Monte Carlo Approach, 2020, The Astronomical Journal, 160, 126
• S14. [taken] Ronco, M. P., Schreiber, M. R., Giuppone, C. A., Veras, D., Cuadra, J., Guilera, O. M., How Jupiters Save or Destroy Inner Neptunes around Evolved Stars, 2020, The Astrophysical Journal, 898, L23
• S15. Tiongco, M. A., Vesperini, E., Varri, A. L., Kinematical evolution of multiple stellar populations in star clusters, 2019, MNRAS, 487, 5535
• S16. Ballone, A., Mapelli, M., Di Carlo, U. N., Torniamenti, S., Spera, M., Rastello, S., Evolution of fractality and rotation in embedded star clusters, 2020, MNRAS, 496, 49
• S17. [taken] Cournoyer-Cloutier, C., Tran, A., Lewis, S., Wall, J. E., Harris, W. E., Mac Low, M.-M., McMillan, S. L. W., Portegies Zwart, S., Sills, A., Implementing Primordial Binaries in Simulations of Star Cluster Formation with a Hybrid MHD and Direct N-Body Method, 2020, arXiv e-prints, arXiv:2011.06105
   

Supervisor: A. Just

Subject Classification:

Milky Way: J1, J2, J10 (observ.+N-body); J4, J6, J8 (obs); J5 (N-body); J7 (obs+model), J9

Supermassive Black Holes: J3 ; J4

• J1. The GALAH survey and Gaia DR2: Linking ridges, arches and vertical waves in the kinematics of the Milky Way, S. Khanna et al., 2019, (MNRAS 489, 4962)

• J2. The pattern speed of the Milky Way bar from transverse velocities, J.L. Sanders et al., 2019 (MNRAS 488, 4552)

• J3. [taken] Post-Newtonian evolution of massive black hole triplets in galactic nuclei - IV. Implications for LISA, M. Bonetti et al. 2019, MNRAS 486, 4044

• J4. [taken] The Proper Motion of Sagittarius A*: III. The Case for a Supermassive Black Hole, M.J. Reid & A. Brunthaler, 2020 (ApJ 892, 39)

• J5. [taken] Escapees from the bar resonances: Presence of low-eccentricity metal-rich stars at the solar vicinity, S. Khoperskov et al., 2020 (A&A 638, A144)

• J6. Hic sunt dracones: Cartography of the Milky Way spiral arms and bar resonances with Gaia Data Release 2, Khoperskov et al., 2020 (A&A 634, L8)

• J7. [taken] Evidence of a dynamically evolving Galactic warp, Poggio et al. 2020 (Nature Astron., 4, 590)

• J8. [taken] Evidence for Galactic disc RR Lyrae stars in the solar neighbourhood, Prudil et al., 2020 (MNRAS 492, 3408)

• J9. [taken] Measuring the matter density of the Galactic disc using stellar streams, Widmark et al. 2020 (MNRAS 496, 3112)

• J10. [taken] Galactic seismology: the evolving “phase spiral” after the Sagittarius dwarf impact, Bland-Hawthorn & Tepper-Garcia 2020 (arXiv 2009.02434)