# Discovery of High-Velocity H$\alpha$ Emission in the Direction of the Fermi Bubble.

@article{Krishnarao2020DiscoveryOH,
title={Discovery of High-Velocity H\$\alpha\$ Emission in the Direction of the Fermi Bubble.},
author={D. Krishnarao and R. Benjamin and L. Haffner},
journal={arXiv: Astrophysics of Galaxies},
year={2020}
}
• Published 2020
• Physics
• arXiv: Astrophysics of Galaxies
Wisconsin H-Alpha Mapper (WHAM) observations reveal high-velocity and [NII]$\lambda6584$ emission lines in the same direction and velocity as ultraviolet absorption-line features that have been previously associated with the biconical gamma-ray lobes known as the Fermi Bubbles. We measure an extinction-corrected intensity of $I_{\textrm{H}\alpha}=0.84^{+0.10}_{-0.09}$ Rayleigh for emission with line center $v_\textrm{LSR}=-221\pm3~\textrm{km}~\textrm{s}^{-1}$, corresponding to an emission… Expand