Prochaska, J. X., Werk, J. K., Worseck, G., Tripp, T. M., Tumlinson, J., Burchett, J. N., …Tejos, N. (2017). The COS-Halos Survey: Metallicities in the Low-redshift Circumgalactic Medium. Astrophysical Journal, 837(2), Article 169. https://doi.org/10.3847/1538-4357/aa6007