High-Resolution Maser Studies of Galactic Nuclei

Details High-Resolution Maser Studies of Galactic Nuclei High-Resolution Maser Studies of Galactic Nuclei

Feb 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000rspta.358..797m&link_type=abstract

Philosophical Translations of the Royal Society of London, Series A, p. 797-810

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3

Masers, Galactic Nuclei, Accretion Discs

Scientific paper

Water vapour masers are proving to be remarkably useful probes of the neutral accretion discs surrounding black holes at radii of a few tenths of a parsec. This paper describes the observational results on NGC 4258, including measurements of the magnetic field (less than 300 mG), the accelerations of the high-velocity features (-0.8 to 0.4 km s-1yr-1), and the distance (7.2+/-0.5 Mpc). The status of measurements of other masers with resolved structure is also described.

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