538 citations · 8.5k across the 174 of their papers we have counts for
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Kozai cycles, tidal friction and the dynamical evolution of binary minor planets
Hagai B. Perets, Smadar Naoz
In recent years many binary minor planets (BMPs) have been discovered in the Solar system. Many models have been suggested for their formation, but these encounter difficulties exp…
The Galactic potential and the asymmetric distribution of hypervelocity stars
Hagai B. Perets, Xufen Wu, HongSheng Zhao +3
In recent years several hypervelocity stars (HVSs) have been observed in the halo of our Galaxy. Such HVSs have possibly been ejected from the Galactic center and then propagated i…
Dynamical evolution of the young stars in the Galactic center
Hagai. B. Perets, Alessia Gualandris, David Merritt +1
Recent observations of the Galactic center revealed a nuclear disk of young OB stars near the massive black hole (MBH), in addition to many similar outlying stars with higher eccen…
Milky Way potentials in CDM and MOND. Is the Large Magellanic Cloud on a bound orbit?
Xufen Wu, Benoit Famaey, Gianfranco Gentile +2
We compute the Milky Way potential in different cold dark matter (CDM) based models, and compare these with the modified Newtonian dynamics (MOND) framework. We calculate the axis…
Runaway and hypervelocity stars in the Galactic halo: Binary rejuvenation and triple disruption
Hagai B. Perets
Young stars observed in the distant Galactic halo are usually thought to have formed elsewhere, either in the Galactic disk or perhaps the Galactic center, and subsequently ejected…
Dynamical and evolutionary constraints on the nature and origin of hypervelocity stars
Hagai B. Perets
In recent years several hypervelocity stars (HVSs) have been observed in the halo of our Galaxy. Such stars are thought to be ejected through dynamical interactions near the massiv…
Getting a kick out of the stellar disk(s) in the galactic center
Hagai B. Perets, Gabor Kupi, Tal Alexander
Recent observations of the Galactic center revealed a nuclear disk of young OB stars, in addition to many similar outlying stars with higher eccentricities and/or high inclinations…
Temperature fluctuations of interstellar dust grains
Kobi Horn, Hagai B. Perets, Ofer Biham
The temperatures of interstellar dust grains are analyzed using stochastic simulations, taking into account the grain composition and size and the discreteness of the photon flux.…
Formation of molecular hydrogen on amorphous silicate surfaces
Ling Li, Giulio Manico, Emanuele Congiu +8
Experimental results on the formation of molecular hydrogen on amorphous silicate surfaces are presented and analyzed using a rate equation model. The energy barriers for the relev…
Massive perturbers and the efficient merger of binary massive black holes
Hagai B. Perets, Tal Alexander
We show that dynamical relaxation in the aftermath of a galactic merger and the ensuing formation and decay of a binary massive black hole (MBH), are dominated by massive perturber…
Molecular Hydrogen Formation on Amorphous Silicates Under Interstellar Conditions
Hagai B. Perets, Adina Lederhendler, Ofer Biham +8
Experimental results on the formation of molecular hydrogen on amorphous silicate surfaces are presented for the first time and analyzed using a rate equation model. The energy bar…
Massive perturbers in the galactic center
Hagai B. Perets, Clovis Hopman, Tal Alexander
We investigate the role of massive perturbers, such as giant molecular clouds or stellar clusters, in supplying low-angular momentum stars that pass very close to the central massi…
Massive perturber-driven interactions of stars with a massive black hole
Hagai B. Perets, Clovis Hopman, Tal Alexander
We study the role of massive perturbers (MPs) in deflecting stars and binaries to almost radial ("loss-cone") orbits, where they pass near the central massive black hole (MBH), int…
The formation of H_2 and HD with the master equation approach
Ofer Biham, Azi Lipshtat, Hagai B. Perets
The formation of H2 and HD molecules on interstellar dust grains is studied using rate equation and master equation models. Rate equations are used in the analysis of laboratory ex…
Molecular Hydrogen Formation on Porous Dust Grains
Hagai B. Perets, Ofer Biham
Recent laboratory experiments on interstellar dust analogues have shown that H_2 formation on dust grain surfaces is efficient in a range of grain temperatures below 20 K. These re…
Formation of molecular hydrogen on analogues of interstellar dust grains: experiments and modelling
Gianfranco Vidali, Joe Roser, Giulio Manico +3
Molecular hydrogen has an important role in the early stages of star formation as well as in the production of many other molecules that have been detected in the interstellar medi…
Molecular Hydrogen Formation on Ice Under Interstellar Conditions
Hagai B. Perets, Ofer Biham, Giulio Manico +4
The results of experiments on the formation of molecular hydrogen on low density and high density amorphous ice surfaces are analyzed using a rate equation model. The activation en…