Stellar Substructures around the Hercules Dwarf Spheroidal Galaxy
We present deep g and i band Dark Energy Camera stellar photometry of the Hercules Milky Way satellite galaxy, and its surrounding field, out to a radial distance of 5.4 times the tidal radius. We have identified nine extended stellar substructures associated with the dwarf; preferentially distributed along the major axis of the galaxy. Two significant over-densities lie outside the 95% confidence band for the likely orbital path of the galaxy and appear to be free-floating tidal debris. We...[Show more]
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|Source:||Astrophysical Journal, The|
|01_Roderick_Stellar_Substructures_around_2015.pdf||1.34 MB||Adobe PDF||Request a copy|
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