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The recent discovery of enormous Ly$\alpha$ nebulae (ELANe), characterized byphysical extents $>200$ kpc and Ly$\alpha$ luminosities $>10^{44}$ ergs$^{-1}$, provide a unique opportunity to study the intergalactic andcircumgalactic medium (IGM/CGM) in distant galaxies. Many existing ELANedetections are associated with local overdensities of active galactic nuclei(AGN). We have initiated a search for ELANe around regions containing pairs ofquasi-stellar objects (QSOs) using the Palomar Cosmic Web Imager (PCWI). Thefirst study of this search, Cai et al., presented results of ELAN0101+0201which was associated with a QSO pair at $z=2.45$. In this study, all targetsresiding in QSO pair environments analyzed have Ly$\alpha$ detections, but onlyone of the four targets meets the classification criteria of an ELANeassociated with a QSO pair region (z$\sim2.87$). The other three sampledetections of Ly$\alpha$ nebulae do not meet the size and luminosity criteriato be classified as ELANe. We find kinematic evidence that the ELANe J1613, ispossibly powered {mostly by AGN outflows.} The analysis of circularly-averagedsurface brightness profiles of emission from the Ly$\alpha$ regions show thatthe {Ly$\alpha$ emission around $z\sim2$ QSO pairs is consistent with emissionaround individual QSOs at $z\sim2$, which is fainter than that around $z\sim3$QSOs. A larger sample of Ly$\alpha$ at z$\sim$2 will be needed to determine ifthere is evidence of redshift evolution when compared to nebular emissions atz$\sim$3 from other studies.

Circumgalactic Ly$\alpha$ Nebulae in Overdense Quasar Pair Regions Observed with the Palomar Cosmic Web Imager