Hostname: page-component-76fb5796d-25wd4 Total loading time: 0 Render date: 2024-04-26T22:40:35.512Z Has data issue: false hasContentIssue false
  • English
  • Français

Velocity Dispersion in the Bulge of M31; Dynamical Model

Published online by Cambridge University Press:  14 August 2015

G. Monnet ,
A. Pellet  and
F. Simien
G. Monnet
Affiliation:
Observatoires de Marseille et de Lyon
A. Pellet
Affiliation:
Observatoires de Marseille et de Lyon
F. Simien
Affiliation:
Observatoires de Marseille et de Lyon

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

1) Photometry from de Vaucouleurs 1958 shows a bulge obeying the r1/4 law up to less than 5 pc from the center with an effective radius re = 17′5. In the region from 0.01 to 0.2 re, equal luminosity curves are well approximated by similar ellipses of axial ratio 0.68. The reduced spatial density υ* and the reduced gravitationnal potential φ* (i.e. for a mass to luminosity ratio f equal to 1) can then be easily computed (Monnet and Simien 1977).

Type
III: Nearby Galaxies of Large Angular Size
Information
Symposium - International Astronomical Union , Volume 77: Structure and Properties of Nearby Galaxies , 1978 , pp. 159 - 161
Copyright
Copyright © Reidel 1978 

References

Bertola, F., Capaccioli, M.: 1975, Astrophys. J. 200, 439.Google Scholar
Heidmann, J., Heidmann, N., Vaucouleurs, G. de: 1971, Mem. Roy. Astron. Soc. 75, 85.Google Scholar
Light, E.S., Danielson, R.E., Schwarzschild, M.: 1974, Astrophys. J. 194, 257.CrossRefGoogle Scholar
Monnet, G., Simien, F.: 1977, Astron. Astrophys. 56, 173.Google Scholar
Morton, D.C., Andereck, C.D., Bernard, D.A.: 1977, Astrophys. J. 212, 13.Google Scholar
Pellet, A.: 1976, Astron. Astrophys. 50, 421.Google Scholar
Schmidt, M.: 1956, Bull. Astr. Inst. Netherlands 13, 15.Google Scholar
Vaucouleurs, G. de: 1958, Astrophys. J. 128, 465.CrossRefGoogle Scholar