376 citations · 1.1k across the 16 of their papers we have counts for
15 papers
Modeling the light curve of `Oumuamua: evidence for torque and disc-like shape
Sergey Mashchenko
We present the first attempt to fit the light curve of the interstellar visitor `Oumuamua using a physical model which includes optional torque. We consider both conventional (Lomm…
Mass Models of Dwarf Spheroidal Galaxies with Variable Stellar Anisotropy. I. Jeans Analysis
Sergey Mashchenko
Using a flexible galactic model with variable stellar velocity anisotropy, I apply the classical Jeans mass modeling approach to the five dwarf spheroidal galaxies with the largest…
Building the Stellar Halo Through Feedback in Dwarf Galaxies
Aaron J. Maxwell, James Wadsley, H. M. P. Couchman +1
We present a new model for the formation of stellar halos in dwarf galaxies. We demonstrate that the stars and star clusters that form naturally in the inner regions of dwarfs are…
Stellar Feedback in Dwarf Galaxy Formation
Sergey Mashchenko, James Wadsley, H. M. P. Couchman
Dwarf galaxies pose significant challenges for cosmological models. In particular, current models predict a dark matter density that is divergent at the center, in sharp contrast w…
Cosmological puzzle resolved by stellar feedback in high redshift galaxies
Sergey Mashchenko, H. M. P. Couchman, James Wadsley
The standard cosmological model, now strongly constrained by direct observation at early epochs, is very successful in describing the structure of the evolved universe on large and…
Constraining global properties of the Draco dwarf spheroidal galaxy
Sergey Mashchenko, Alison Sills, H. M. P. Couchman
By fitting a flexible stellar anisotropy model to the observed surface brightness and line-of-sight velocity dispersion profiles of Draco we derive a sequence of cosmologically pla…