Luminous WISE-selected Obscured, Unobscured, and Red Quasars in Stripe 82

We present a spectroscopically complete sample of 147 infrared-color-selected active galactic nuclei (AGNs) down to a 22 mu m flux limit of 20 mJy over the similar to 270 deg(2) of the Sloan Digital Sky Survey Stripe 82 region. Most of these sources are in the QSO luminosity regime (L-bol greater than or similar to 10(12)L(circle dot)) and are found out to z similar or equal to 3. We classify the AGNs into three types, finding 57 blue, unobscured Type-1 (broad-lined) sources; 69 obscured, Type-2 (narrow-lined) sources; and 21 moderately reddened Type-1 sources (broad-lined and E(B-V) > 0.25). We study a subset of this sample in X-rays and analyze their obscuration to find that our spectroscopic classifications are in broad agreement with low, moderate, and large amounts of absorption for Type-1, red Type-1, and Type-2 AGNs, respectively. We also investigate how their X-ray luminosities correlate with other known bolometric luminosity indicators such as [O III] line luminosity (L-[O III]) and infrared luminosity (L-6 mu m). While the X-ray correlation with L-[O III] is consistent with previous findings, the most infrared-luminous sources appear to deviate from established relations such that they are either underluminous in X-rays or overluminous in the infrared. Finally, we examine the luminosity function evolution of our sample, and by AGN type, in combination with the complementary, infrared-selected, AGN sample of Lacy et al. (2013), spanning over two orders of magnitude in luminosity. We find that the two obscured populations evolve differently, with reddened Type-1 AGNs dominating the obscured AGN fraction (similar to 30%) for L-5 mu m > 10(45) erg s(-1), while the fraction of Type-2 AGNs with L-5 mu m < 10(45) erg s(-1) rises sharply from 40% to 80% of the overall AGN population.