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

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.
Authors:
; ;  [1]
  1. (Padova Universita, Padua (Italy) Carnegie Institution of Washington, Washington, DC (USA))
Publication Date:
OSTI Identifier:
5095698
Resource Type:
Journal Article
Resource Relation:
Journal Name: Astrophysical Journal; (USA); Journal Volume: 345
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; GALAXIES; MORPHOLOGY; COSMIC GASES; EMISSION SPECTRA; LUMINOSITY; PHOTOMETRY; SPECTROSCOPY; SPIRAL CONFIGURATION; VELOCITY; CONFIGURATION; FLUIDS; GASES; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; SPECTRA 640105* -- Astrophysics & Cosmology-- Galaxies