538 citations · 8.5k across the 174 of their papers we have counts for
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Deus Ex Statistica: A Statistical Solution to the binary-binary Outcome of the Chaotic, Non-Hierarchical Four-Body Problem
Yoav Zack, Hagai B. Perets, Yonadav Barry Ginat
We present an analytical, statistical solution to the binary-binary (2+2) outcome of the chaotic non-hierarchical four-body problem. The solution is based on the density-of-states…
Superdiffusion at the Galactic Centre
Pau Amaro Seoane, Kostas Tzanavaris, Reinhard Genzel +14
Tracking S-star cluster orbits around Sgr A* calibrates orbital transport models for space-borne gravitational wave detectors. Standard kinetic theories model this cluster via loca…
Stellar rotation of S301 as a macroscopic gyroscope to test general relativity
Pau Amaro Seoane, Xian Chen, Alejandro Torres-Orjuela +16
Stellar trajectories around the Galactic Center provide a testing environment for general relativity. The intrinsic rotation of these stars evolves under covariant transport in cur…
A spectroscopic map of the Galactic centre -- Observations and resolved stars
A. Feldmeier-Krause, N. Neumayer, A. Seth +10
The Galactic Centre region contains a dense accumulation of stars, which can be separated into two components: A flattened and dense nuclear star cluster (NSC), and a surrounding,…
Binaries are softer than they seem: Effects of an external potential on the scattering dynamics of binaries
Yonadav Barry Ginat, Hagai B. Perets
Binary evolution is influenced by dynamical scattering with other stars in dense environments. Heggie's law states that, due to their environments, hard binaries (whose orbital ene…
Probing supermassive stars and massive black hole seeds through gravitational wave inspirals
Yael Raveh, Yonadav Barry Ginat, Hagai B. Perets +1
We propose a novel source of gravitational wave emission: the inspirals of compact fragments inside primordial supermassive stars (SMSs). Such systems are thought to be an essentia…
Extreme mass-ratio gravitational-wave sources: Mass segregation and post binary tidal-disruption captures
Yael Raveh, Hagai B. Perets
The gravitational-wave (GW) inspirals of stellar-mass compact objects onto a supermassive black hole (MBH), are some of the most promising GW sources detectable by next-generation…
Linking globular cluster structural parameters and their evolution: multiple stellar populations
Alessandra Mastrobuono-Battisti, Hagai B. Perets
Globular clusters (GCs) are known to host multiple stellar populations showing chemical anomalies in the content of light elements. The origin of such anomalies observed in Galacti…
An Analytical, Statistical Approximate Solution for Dissipative and non-Dissipative Binary-Single Stellar Encounters
Yonadav Barry Ginat, Hagai B. Perets
We present a statistical approximate solution of the bound, non-hierarchical three-body problem, and extend it to a general analysis of encounters between hard binary systems and s…
Star formation at the Galactic Centre: coevolution of multiple young stellar discs
Alessandra Mastrobuono-Battisti, Hagai B. Perets, Alessia Gualandris +2
Studies of the Galactic Centre suggest that in-situ star formation may have given rise to the observed stellar population near the central supermassive black hole (SMBH). Direct ev…
Envisioning the next decade of Galactic Center science: a laboratory for the study of the physics and astrophysics of supermassive black holes
Tuan Do, Andrea Ghez, Jessica R. Lu +38
As the closest example of a galactic nucleus, the Galactic center (GC) presents an exquisite laboratory for learning about supermassive black holes (SMBH) and their environment. We…
Black hole and neutron star mergers in galactic nuclei
Giacomo Fragione, Evgeni Grishin, Nathan W. C. Leigh +2
Nuclear star clusters surrounding supermassive black holes (SMBHs) in galactic nuclei contain large numbers of stars, black holes (BHs) and neutron stars (NSs), a fraction of which…
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-…
Relaxation near supermassive black holes driven by nuclear spiral arms: anisotropic hypervelocity stars, S-stars and tidal disruption events
Adrian S. Hamers, Hagai B. Perets
Nuclear spiral arms are small-scale transient spiral structures found in the centers of galaxies. Similarly to their galactic-scale counterparts, nuclear spiral arms can perturb th…
Observational Evidence Linking Interstellar UV Absorption to PAH Molecules
Avi Blasberger, Ehud Behar, Hagai B. Perets +2
The 2175 Å UV extinction feature was discovered in the mid-1960s, yet its physical origin remains poorly understood. One suggestion is absorption by Polycyclic Aromatic Hydrocarbon…
On the rotation of nuclear star clusters formed by cluster-inspirals
Athanasia Tsatsi, Alessandra Mastrobuono-Battisti, Glenn van de Ven +3
Nuclear Star Clusters (NSCs) are commonly observed in the centres of most galactic nuclei, including our own Milky Way. While their study can reveal important information about the…
The impact of mass segregation and star-formation on the rates of gravitational-wave sources from extreme mass ratio inspirals
Danor Aharon, Hagai B. Perets
Compact stellar objects inspiralling into massive black holes (MBHs) in galactic nuclei are some of the most promising gravitational wave (GWs) sources for next generation GW-detec…
The History of Tidal Disruption Events in Galactic Nuclei
Danor Aharon, Alessandra Mastrobuono Battisti, Hagai B. Perets
The tidal disruption of a star by a massive black hole (MBH) is thought to produce a transient luminous event. Such tidal disruption events (TDEs) may play an important role in the…
Second generation stellar disks in Dense Star Clusters and cluster ellipticities
Alessandra Mastrobuono-Battisti, Hagai B. Perets
Globular Clusters (GCs) and Nuclear Star Clusters (NSCs) are typically composed by several stellar populations, characterized by different chemical compositions. Different populati…
Short and long term evolution of a stellar disk around a massive black hole: The role of binaries, the cusp and stellar evolution
Diego N. Mikhaloff, Hagai B. Perets
We study the dynamical evolution of a stellar disk orbiting a massive black hole. We explore the role of two-body relaxation, mass segregation, stellar evolution and binary heating…
Star-formation in nuclear clusters and the origin of the Galactic Center apparent core distribution
Danor Aharon, Hagai B. Perets
Nuclear stellar cluster (NSCs) are known to exist around massive black holes (MBHs) in galactic nuclei. Two formation scenarios were suggested for their origin: Build-up of NSCs an…
Formation and evolution of nuclear star clusters with in-situ star-formation: Nuclear cores and age segregation
Danor Aharon, Hagai B. Perets
Nuclear stellar cluster (NSCs) are known to exist around massive black holes (MBHs) in galactic nuclei. Two formation scenarios were suggested for their origin: (1) Build-up of NSC…
Secular Evolution Of Binaries Near Massive Black Holes: Formation of compact binaries, merger/collision products and G2-like objects
Snezana Prodan, Fabio Antonini, Hagai B. Perets
Here we discuss the evolution of binaries around MBH in nuclear stellar clusters. We focus on their secular evolution due to the perturbation by the MBH, while simplistically accou…
Effects of Intermediate Mass Black Holes on Nuclear Star Clusters
Alessandra Mastrobuono-Battisti, Hagai B. Perets, Abraham Loeb
Nuclear star clusters (NSCs) are dense stellar clusters observed in galactic nuclei, typically hosting a central massive black hole. Here we study the possible formation and evolut…