Statistical Detection of the He II Transverse Proximity Effect: Evidence for Sustained Quasar Activity for >25 Million Years

Published in The Astrophysical Journal, 2017

Recommended citation: Schmidt, T. M., Worseck, G., Hennawi, J. F., et al. (2017). "Statistical Detection of the He II Transverse Proximity Effect: Evidence for Sustained Quasar Activity for >25 Million Years." The Astrophysical Journal, 847, 81.
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