267 citations · 2.1k across the 89 of their papers we have counts for
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Dynamical derivation of Bode's law
Robert W. Bass
In a planetary or satellite system, idealized as n small bodies in initially coplanar, concentric orbits around a large central body, obeying Newtonian point-particle mechanics, re…
The Effects of Shear and Rotation Anisotropy Upon the Process of Gravitational Instability
A. Del Popolo, E. N. Ercan, M. Gambera
In this paper, we study the role of shear fields on the evolution of density perturbations embedded in a Friedmann flat background universe, by studying the evolution of a homogene…
The mass and temperature functions in a moving barrier model
A. Del Popolo
In this paper, I use the extension of the excursion set model of Sheth & Tormen (2002) and the barrier shape obtained in Del Popolo & Gambera (1998) to calculate the unconditional…
A theoretical study of the mass temperature relation for clusters of galaxies
A. Del Popolo
I derive the mass-temperature relation and its time evolution for clusters of galaxies in different cosmologies by means of two different models. The first one is a modification an…
On the evolution of aspherical perturbations in the universe: an analytical model
A. Del Popolo
I study the role of shear fields by using an analytical approximate solution for the equations of motion of homogeneous ellipsoids embedded in a homogeneous background. The equatio…
Migration of giant planets in a time-dependent planetesimal accretion disc
A. Del Popolo, K. Y. Eksi
In this paper, we further develop the model for the migration of planets introduced in Del Popolo et al. (2001). We first model the protoplanetary nebula as a time-dependent accret…