The Composite Spectrum of BOSS Quasars Selected for Studies of the Lyman-alpha Forest

David W. Harris, Trey W. Jensen, Nao Suzuki +12

The Baryon Oscillation Spectroscopic Survey (BOSS) has collected more than 150,000 $2.1\le z\le 3.5$ quasar spectra since 2009. Using this unprecedented sample, we create a com…