On Multipolar Analytical Potentials for Galaxies | Zendy

D. Vogt | Zendy; Patricio S. Letelier | Zendy

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On Multipolar Analytical Potentials for Galaxies

Author(s) -

D. Vogt,

Patricio S. Letelier

Publication year - 2005

Publication title -

publications of the astronomical society of japan

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.99

H-Index - 110

eISSN - 2053-051X

pISSN - 0004-6264

DOI - 10.1093/pasj/57.6.871

Subject(s) - physics , multipole expansion , gravitational potential , galaxy , quadrupole , classical mechanics , gravitational field , astrophysics , density contrast , quantum mechanics

We present analytical potential-density pairs in three dimensions for thegravitational field of galaxies, obtained by thickening the multipolarexpansion up to the quadrupole term. These may be interpreted asgeneralizations of the Miyamoto and Nagai potential-density pairs. With asuitable restriction on the possible values of the multipole moments, thedensity distributions are positive and monotone decreasing functions of theradial and axial coordinates

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