Parameter estimates for the orbits of M 32 and NGC 205 about the centre of mass of the M 31 system

Bibcode
1988A&A...200...21C
Cepa, J.; Beckman, J. E.
Referencia bibliográfica

Astronomy and Astrophysics (ISSN 0004-6361), vol. 200, no. 1-2, July 1988, p. 21-25.

Fecha de publicación:
7
1988
Número de autores
2
Número de autores del IAC
2
Número de citas
30
Número de citas referidas
24
Descripción
The authors used simple kinematic, dynamic and geometrical assumptions to infer the orbital parameters of M32 and NGC 205 about M31. They find that both galaxies rotate in a retrograde sense compared to M31 indicating a possible common origin independent of the mother galaxy. Their periods, each ≅108yr, and their orbital radii, ≅12 kpc, are comparable, while the inclinations of their orbital planes are -95° for M32 and 122° for NGC 205, with respect to the plane of M31.
Tipo
Con árbitro
Galaxia de Andrómeda
Centro de masa
Galaxias elípticas
Fotometría infrarroja
Elementos orbitales
Línea de visión

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