Discovery of Weak O VI Absorption in Underdense Regions of the Low-Redshift Intergalactic Medium

Sapna Mishra, Vikram Khaire, Romeo Pallikkara +2

We search for weak O VI absorption in the low-redshift intergalactic medium (IGM) using 82 high signal-to-noise quasar spectra from the Cosmic Origins Spectrograph on the Hubble Sp…