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Date and Time of the Query: 2019-05-24 T04:19:18 PDT
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For refcode 1998A&AS..130..449M:
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Copyright by European Southern Observatory (ESO). Reproduced by permission
1998A&AS..130..449M The thicknesses and inclinations of 71 northern spiral galaxies. Ma J., Peng Q.-H., Gu Q.-S. Received September 23, 1997; accepted January 5, 1998 Abstract. This paper presents the thicknesses and inclinations (i.e., the angle between the galactic plane and the tangent plane) of 71 northern spiral galaxies. The method for measuring the thickness has been proposed by Peng. It is based on the solution of Poisson's equation for a logarithmic disturbance of density. The inclination is determined by assuming that the pattern of spiral structure is a logarithmic spiral. We find that the thickness is correlated with color and with the H_{alpha}_+[NII] equivalent width. Key words: galaxies: spiral; structure; kinematics and dynamics; fundamental parameters
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