Supermassive black hole mass in the massive elliptical galaxy M87 from integral-field stellar dynamics using OASIS and MUSE with adaptive optics: assessing systematic uncertainties [PDF]
Monthly notices of the Royal Astronomical Society, 2023 The massive elliptical galaxy M87 has been the subject of several supermassive black hole mass measurements from stellar dynamics, gas dynamics, and recently the black hole shadow by the Event Horizon Telescope (EHT).
David A. Simon +2 more
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Stellar Dynamics of Extreme-Mass-Ratio Inspirals [PDF]
, 2011 Inspiral of compact stellar remnants into massive black holes (MBHs) is accompanied by the emission of gravitational waves at frequencies that are potentially detectable by space-based interferometers. Event rates computed from statistical (Fokker-Planck,
Clifford M. Will +8 more
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Stellar dynamics and dark matter in Local Group dwarf galaxies
Nature Astronomy, 2022 When interpreted within the standard framework of Newtonian gravity and dynamics, the kinematics of stars and gas in dwarf galaxies reveals that most of these systems are completely dominated by their dark matter halos.
G. Battaglia, Carlo Nipoti
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Sculpting Andromeda – made-to-measure models for M31’s bar and composite bulge: dynamics, stellar and dark matter mass [PDF]
Monthly notices of the Royal Astronomical Society, 2018 The Andromeda galaxy (M31) contains a box/peanut bulge (BPB) entangled with a classical bulge (CB) requiring a triaxial modelling to determine the dynamics, stellar, and dark matter mass.
M. Blaña +8 more
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SMALL SCATTER AND NEARLY ISOTHERMAL MASS PROFILES TO FOUR HALF-LIGHT RADII FROM TWO-DIMENSIONAL STELLAR DYNAMICS OF EARLY-TYPE GALAXIES [PDF]
, 2015 We study the total mass–density profile for a sample of 14 fast-rotator early-type galaxies (stellar masses 10.2 ≲ log M * / M ⊙ ≲ 11.7 ?> ). We combine observations from the SLUGGS and ATLAS 3 D ?> surveys to map out the stellar kinematics in two ...
Michele Cappellari +11 more
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Chandrasekhar and modern stellar dynamics [PDF]
, 2011 Stellar dynamics occupied Chandrasekhar's interest for a brief interlude between his more prolonged studies of stellar structure and radiative transfer. This paper traces the history of one of his ideas -- namely, that the shape of the galactic potential controls the orientation of the stellar velocity dispersion tensor.
N. Evans
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Monte Carlo Stellar Dynamics near Massive Black Holes: Two-dimensional Fokker–Planck Solutions of Multiple Mass Components [PDF]
Astrophysical Journal, 2023 In this study we present a novel Monte Carlo code, referred to as GNC, which enables the investigation of dynamical relaxation in clusters comprising multiple mass components in the vicinity of supermassive black holes at the centers of galaxies.
Fu-Wen Zhang, P. Amaro Seoane
semanticscholar +1 more source
Stellar dynamics in the periodic cube [PDF]
Monthly notices of the Royal Astronomical Society, 2021 We use the problem of dynamical friction within the periodic cube to illustrate the application of perturbation theory in stellar dynamics, testing its predictions against measurements from N-body simulations. Our development is based on the explicitly
J. Magorrian
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Stellar Dynamics in the Central Arcsecond of Our Galaxy [PDF]
, 2003 With 10 years of high-resolution imaging data now available on the stellar cluster in the Galactic center, we present proper motions for more than 40 stars at projected distances ≤1.″2 from Sagittarius A* (Sgr A*).
R. Schödel +5 more
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Lattice stellar dynamics [PDF]
Monthly Notices of the Royal Astronomical Society, 1995 We describe a technique for solving the combined collisionless Boltzmann and Poisson equations in a discretised, or lattice, phase space. The time and the positions and velocities of `particles' take on integer values, and the forces are rounded to the nearest integer. The equations of motion are symplectic. In the limit of high resolution, the lattice
Syer, D., Tremaine, S.
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