#stellar dynamics
9 papers match
Superdiffusion at the Galactic Centre
Pau Amaro Seoane, Kostas Tzanavaris, Reinhard Genzel +14
The paper models the orbital evolution of the S‑star cluster around the Milky Way’s central black hole using a superdiffusive, fractional transport framework that accounts for long…
From S2 to LISA: Astrometric Bounds on Extreme-Mass-Ratio Inspirals and Bursts
Andrea Caputo, Valerie Domcke
The paper uses precise astrometric measurements of the star S2 near the Galactic centre to constrain the number of stellar‑mass black holes and estimate the rates of extreme‑mass‑r…
Stellar rotation of S301 as a macroscopic gyroscope to test general relativity
Pau Amaro Seoane, Xian Chen, Alejandro Torres-Orjuela +16
The paper studies how the rotation of the S301 star near the Galactic Center can act as a macroscopic gyroscope, using its relativistic precession to test general relativity with i…
A Supermassive Black Hole Mass Measurement in NGC 5102 with Schwarzschild Orbit-superposition Modeling
Thomas K. Waters, Kayhan Gultekin, Karl Gebhardt +2
The study determines the mass of the central supermassive black hole in the lenticular galaxy NGC 5102 using stellar-dynamical Schwarzschild orbit-superposition models combined wit…
Berkeley 32: A Metal-poor and Dynamically Evolved Open Cluster with Evidence of Radial Migration
Deniz Cennet Ãınar, D. Bisht, Ing-Guey Jiang +3
The study uses Gaia astrometry and Gaia-ESO spectroscopy to determine the age, metallicity, orbit, binary fraction, and dynamical state of the old, metal-poor open cluster Berkeley…
Cluster characteristics of Galactic open clusters
K. Neumannová, J. SupÃková, N. Faltová +4
The paper estimates total masses, radii, and three‑dimensional shapes for about 7,000 Galactic open clusters using Gaia DR3, 2MASS, and Pan‑STARRS data, and discusses the limitatio…