Browsing FAS Scholarly Articles by Author "Humphreys, Elizabeth"

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    • The structure of the accretion disk in NGC 4258 

      Moran, James M.; Humphreys, Elizabeth; Greenhill, Lincoln Jared; Reid, Mark Jonathan; Argon, Alice (Cambridge University Press (CUP), 2007)
      A wealth of new information about the structure of the maser disk in NGC 4258 has been obtained from a series of 18 VLBA observations spanning three years, as well as from 32 additional epochs of spectral monitoring data ...