200 citations · 824 across the 27 of their papers we have counts for
5 papers · 1 filter
Predicting the linear response of self-gravitating stellar spheres and discs with LinearResponse.jl
Michael S. Petersen, Mathieu Roule, Jean-Baptiste Fouvry +2
We present LinearResponse.jl, an efficient, versatile public library written in julia to compute the linear response of self-gravitating (3D spherically symmetric) stellar spheres…
RomAndromeda: The Roman Survey of the Andromeda Halo
Arjun Dey, Joan Najita, Carrie Filion +50
As our nearest large neighbor, the Andromeda Galaxy provides a unique laboratory for investigating galaxy formation and the distribution and substructure properties of dark matter…
Measuring the dynamical length of galactic bars
Michael S. Petersen, Martin D. Weinberg, Neal Katz
We define a physically-motivated measure for galactic bar length, called the dynamical length. The dynamical length of the bar corresponds to the radial extent of the orbits that a…
Correlating Changes in Spot Filling Factors with Stellar Rotation: The Case of LkCa 4
Facundo Pérez Paolino, Jeffrey S. Bary, Michael S. Petersen +4
We present a multi-epoch spectroscopic study of LkCa 4, a heavily spotted non-accreting T Tauri star. Using SpeX at NASA's Infrared Telescope Facility (IRTF), 12 spectra were colle…
Dynamical Data Mining Captures Disc-Halo Couplings that Structure Galaxies
Alexander Johnson, Michael S. Petersen, Kathryn V. Johnston +1
Studying coupling between different galactic components is a challenging problem in galactic dynamics. Using basis function expansions (BFEs) and multichannel singular spectrum ana…