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NGC 1912 and NGC 1907: A close encounter between open clusters?

de Oliveira, M. R. ; Fausti, A. ; Bica, E. ; Dottori, H.

Astronomy and astrophysics (Berlin), 2002-07, Vol.390 (1), p.103-108 [Periódico revisado por pares]

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Título:
NGC 1912 and NGC 1907: A close encounter between open clusters?
Autor: de Oliveira, M. R. ; Fausti, A. ; Bica, E. ; Dottori, H.
Assuntos: galaxies: star clusters ; Galaxy: open clusters ; kinematics and dynamics
É parte de: Astronomy and astrophysics (Berlin), 2002-07, Vol.390 (1), p.103-108
Notas: publisher-ID:aah3159
ark:/67375/80W-G89PPHTK-R
other:2002A%26A...390..103D
istex:3F4ED35B5DAD2B3423E33BDD161723E424EABE54
Descrição: The possible physical relation between the closely projected open clusters NGC 1912 (M 38) and NGC 1907 is investigated. Previous studies suggested a physical pair based on similar distances, and the present study explores in more detail the possible interaction. Spatial velocities are derived from available radial velocities and proper motions, and the past orbital motions of the clusters are retrieved in a Galactic potential model. Detailed N-body simulations of their approach suggest that the clusters were born in different regions of the Galaxy and presently experience a fly-by.
Editor: EDP Sciences
Idioma: Inglês

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