A geometric distance to the galaxy NGC4258 from orbital motions in a nuclear gas disk.

Authors :: Herrnstein, J.R.
Moran, J.M.
Greenhill, L.J.
Diamond, P.J.
Inoue, M.
Nakai, N.
Miyoshi, M.
Henkel, C.
Riess, A.
Source :: Nature; 8/5/1999, Vol. 400 Issue 6744, p539, 3p, 1 Diagram, 4 Graphs
Publication Year :: 1999
Abstract: Reports the details of a study which attempted to calculate the absolute distance to the galaxy NGC4258. Measurements basis on the orbital motions in a disk of gas surrounding the nucleus of the galaxy; Use of absolute distance in calculating the age, geometry and fate of the Universe; Estimated distance to NGC4258; Role of this estimation in future distance-scale calibrations.

Subjects :: GALAXIES
MEASUREMENT of distances
END of the universe
ASTRONOMY
MEASUREMENT

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