Corpus ID: 226198023

Discovery of High-Velocity H-Alpha Above Galactic Center: Testing Models of the Fermi Bubble

@inproceedings{Krishnarao2020DiscoveryOH,
  title={Discovery of High-Velocity H-Alpha Above Galactic Center: Testing Models of the Fermi Bubble},
  author={Dhanesh Krishnarao and Robert A. Benjamin and L. Matthew Haffner},
  year={2020}
}
Wisconsin H-Alpha Mapper (WHAM) observations reveal high velocity Hα and [N II]λ6584 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 extinctioncorrected intensity of IHα = 0.84 +0.10 −0.09 Rayleigh for emission with line center vLSR = −221± 3 km s −1, corresponding to an emission measure of EM = 2.09 −0.63 cm −6 pc. This emission arises at… Expand

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