143 citations · 695 across the 23 of their papers we have counts for
13 papers · 1 filter
The chemical abundance pattern of the extremely metal-poor thin disk star 2MASS J1808-5104 and its origins
Mohammad K. Mardini, Anna Frebel, Rana Ezzeddine +6
We present a high-resolution (), high signal-to-noise () Magellan/MIKE spectrum of the bright extremely metal-poor star 2MASS~J18085104. We find [Fe/H] = $…
The Atari Disk, a Metal-Poor Stellar Population in the Disk System of the Milky Way
Mohammad K. Mardini, Anna Frebel, Anirudh Chiti +3
We have developed a chemo-dynamical approach to assign 36,010 metal-poor SkyMapper stars to various Galactic stellar populations. Using two independent techniques (velocity and act…
Properties of loss cone stars in a cosmological galaxy merger remnant
Branislav Avramov, Peter Berczik, Yohai Meiron +2
Aims: We investigate the orbital and phase space properties of loss cone stars that interact strongly with a hard, high-redshift binary supermassive black hole (SMBH) system formed…
Cosmological Insights into the Early Accretion of \textit{r}-Process-Enhanced stars. I. A Comprehensive Chemo-dynamical Analysis of LAMOST J1109+0754
Mohammad K. Mardini, Vinicius M. Placco, Yohai Meiron +10
This study presents a comprehensive chemo-dynamical analysis of LAMOST J1109+0754, a bright (V = 12.8), extremely metal-poor (\abund{Fe}{H} = ) star, with a strong \textit{r…
Mass loss from massive globular clusters in tidal fields
Yohai Meiron, Jeremy J. Webb, Jongsuk Hong +3
Massive globular clusters lose stars via internal and external processes. Internal processes include mainly two-body relaxation, while external processes include interactions with…
Intermediate mass black holes' effect on compact object binaries
Barnabás Deme, Yohai Meiron, Bence Kocsis
Although their existence is not yet confirmed observationally, intermediate mass black holes (IMBHs) may play a key role in the dynamics of galactic nuclei. In this paper, we negle…
Anisotropic Mass Segregation in Rotating Globular Clusters
Ákos Szölgyén, Yohai Meiron, Bence Kocsis
We investigate the internal dynamics of anisotropic, rotating globular clusters with a multimass stellar population by performing new direct N-body simulations. In addition to the…
Resonant relaxation in globular clusters
Yohai Meiron, Bence Kocsis
Resonant relaxation has been discussed as an efficient process that changes the angular momenta of stars orbiting around a central supermassive black hole due to the fluctuating gr…
Star-disc interaction in galactic nuclei: formation of a central stellar disc
Taras Panamarev, Bekdaulet Shukirgaliyev, Yohai Meiron +5
We perform high resolution direct -body simulations to study the effect of an accretion disc on stellar dynamics in an active galactic nucleus (AGN). We show that the interactio…
Diffusion and mixing in globular clusters
Yohai Meiron, Bence Kocsis
Collisional relaxation describes the stochastic process with which a self-gravitating system near equilibrium evolves in phase space due to the fluctuating gravitational field of t…
Spiral arms, warping, and clumps formation in the Galactic center young stellar disk
Hagai B. Perets, Alessandra Mastrobuono-Battisti, Yohai Meiron +1
The Galactic center of the Milky-Way harbors a massive black hole (BH) orbited by a diverse population of young and old stars. A significant fraction of the youngest stars ($\sim4-…
Star-disc interaction in galactic nuclei: orbits and rates of accreted stars
Gareth F. Kennedy, Yohai Meiron, Bekdaulet Shukirgaliyev +4
We examine the effect of an accretion disc on the orbits of stars in the central star cluster surrounding a central massive black hole by performing a suite of 39 high-accuracy dir…
The influence of mergers and ram-pressure stripping on black hole-bulge correlations
Yonadav Barry Ginat, Yohai Meiron, Noam Soker
We analyse the scatter in the correlation between super-massive black hole (SMBH) mass and bulge stellar mass of the host galaxy, and infer that it cannot be accounted for by merge…