843 citations · 5.1k across the 104 of their papers we have counts for
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Efficient Simulations of Interstellar Gas-Grain Chemistry Using Moment Equations
B. Barzel, O. Biham
Networks of reactions on dust grain surfaces play a crucial role in the chemistry of interstellar clouds, leading to the formation of molecular hydrogen in diffuse clouds as well a…
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…
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…
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…
The effect of grain size distribution on H formation rate in the interstellar medium
Azi Lipshtat, Ofer Biham
The formation of molecular hydrogen in the interstellar medium takes place on the surfaces of dust grains. Hydrogen molecules play a role in gas-phase reactions that produce other…
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…
Efficient simulations of gas-grain chemistry in interstellar clouds
Azi Lipshtat, Ofer Biham
Chemical reactions on dust grains are of crucial importance in interstellar chemistry because they produce molecular hydrogen and various organic molecules. Due to the submicron si…
Enhanced production of HD and D_2 molecules on small dust grains in diffuse clouds
Azi Lipshtat, Ofer Biham, Eric Herbst
Motivated by recent observations of deuterated molecules in the interstellar medium, we examine the production of HD and D molecules on dust grain surfaces. A mechanism for the…
Moment equations for chemical reactions on interstellar dust grains
Azi Lipshtat, Ofer Biham
While most chemical reactions in the interstellar medium take place in the gas phase, those occurring on the surfaces of dust grains play an essential role. Chemical models based o…
Master Equation for Hydrogen Recombination on Grain Surfaces
Ofer Biham, Itay Furman, Valerio Pirronello +1
Recent experimental results on the formation of molecular hydrogen on astrophysically relevant surfaces under conditions similar to those encountered in the interstellar medium pro…
Molecular Hydrogen Formation on Astrophysically Relevant Surfaces
N. Katz, I. Furman, O. Biham +2
Recent experimental results about the formation of molecular hydrogen on astrophysically relevant surfaces under conditions close to those encountered in the interstellar medium ar…
H2 Formation on Interstellar Grains in Different Physical Regimes
O. Biham, I. Furman, N. Katz +2
An analysis of the kinetics of H2 formation on interstellar dust grains is presented using rate equations. It is shown that semi-empirical expressions that appeared in the literatu…
Efficiency of Molecular Hydrogen Formation on Silicates
V. Pirronello, O. Biham, C. Liu +2
We report on laboratory measurements of molecular hydrogen formation and recombination on an olivine slab as a function of surface temperature under conditions relevant to those en…