2023/10/02 by Newlin C. Weatherford, Frederic A. Rasio, Weatherford, Newlin C. +9 · 3 citations
Physics and Astronomy · #Stellar, planetary, and galactic studies #Astrophysics and Star Formation Studies #Astro and Planetary Science
paper · pdf · doi:10.48550/arxiv.2310.01485
This is a movie of stellar streams forming from stars ejected from a globular cluster (GC) simulation run with the Cluste Monte Carlo code (CMC). The movie is also featured on YouTube (youtu.be/zJKCvAf6U3Eyoutu.be/zJKCvAf6U3E) corresponds to Figure 13 of the following submission to The Astrophysical Journal (this description will be updated when published).Weatherford, N. C., Rasio, F. A., Chatterjee, S., Fragione, G., Kıroğlu, F., and Kremer, K., arXiv e-prints, arXiv:2310.01485, doi: 10.48550/arXiv.2310.01485The movie is uploaded here (rather than directly embedded in the online journal article) due to its size. Each point point represents the location of an individual stellar body that has acquired enough energy to escape from the GC (but has not necessarily done so yet). Point color indicates the time elapsed since the body first acquired suffient energy to eventually escape. The lower left panel shows the projected positions in the static center-of-mass coordinates of the GC orbiting the center of the Milky Way at a Galactocentric distance Rgc = 8 kpc., a face-on view of the GC orbit. The other panels show the three orthographic projections along each of the cardinal directions in the rotating clustercentric coordinates, in which the center of the GC is located at the origin while the Galactic center is located on the x-axis at xRgc = –8 kpc (defined this way because the coordinates XYZ and xyz are dimensionless in units of Rgc). The views in the upper row are edge-on to the GC's orbit, looking along (upper left) and perpendicular to (upper right) the ray connecting the cluster center to the Galactic center, while the view in the lower right panel is face-on to the cluster orbit. In the three orthographic panels, the blue circles have radii r =[1,2,3,4,5] times the GC's tidal radius. In the lower left panel, the red circles have radii R/kpc =[2,4,6,8,10,12], and the blue circle radius r = 5 times the GC's tidal radius, with guiding center at R = Rgc.