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Title: Evidence for a triaxial bulge in the spiral galaxy NGC 4845

Journal Article · · Astrophysical Journal; (USA)
DOI:https://doi.org/10.1086/185544· OSTI ID:5095698
; ;  [1]
  1. Padova Universita, Padua (Italy) Carnegie Institution of Washington, Washington, DC (USA)

Spectroscopic observations for the Sa galaxy NGC 4845 in five position angles reveal a regular but nonaxisymmetric velocity field for the gas at r of 1.5 kpc or less. Photometry indicates a possible slight twisting between the disk and bulge isophotes. These phenomena are interpreted as a manifestation of a triaxial bulge, and estimates of the ranges of b/a and c/a are obtained. 20 refs.

OSTI ID:
5095698
Journal Information:
Astrophysical Journal; (USA), Vol. 345; ISSN 0004-637X
Country of Publication:
United States
Language:
English