The Halos and Environments of Nearby Galaxies (HERON) I: Imaging, Sample Characteristics, and Envelope Diameters

R. Michael Rich, Aleksandr Mosenkov, Henry Lee-Saunders +16

We use a dedicated 0.7-m telescope to image the halos of 119 galaxies in the Local Volume to ${\mu }_r\sim 28-30$ mag/arcsec${}^2$. The sample is primarily from the 2MASS Large Galaxy At…