Please use this identifier to cite or link to this item:
http://hdl.handle.net/2248/2567
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Chatterjee, S | - |
dc.date.accessioned | 2008-07-01T11:09:04Z | - |
dc.date.available | 2008-07-01T11:09:04Z | - |
dc.date.issued | 1995-06 | - |
dc.identifier.citation | A&A, Vol. 298, No. 2, pp. 438 - 444 | en |
dc.identifier.issn | 0004-6361 | - |
dc.identifier.uri | http://hdl.handle.net/2248/2567 | - |
dc.description.abstract | We present here rigourous analytical solutions of the Boltzmann-Poisson equations concerning the distribution of stars perpendicular to the galactic plane. The number density of stars at the galactic disk is assumed to follow n(m,0)~H(m-m_0_)m^-x^, where m is the mass of the star and x is an arbitrary exponent greater than 2, while H(m-m_0_) is the unit Heaviside step function. The velocity dispersion of the stars is assumed to arise from the stellar motion in a random force field - leading to <v^2^(m)>~constant for m<=m_*_, <v^2^(m)>~m^-θ^, for m>m_*_, where m_*_ is the stellar mass for which the stellar life-time equals the galactic age. It is seen that the height distribution of stars is very sensitive to the values of x and θ. Finally we have derived an expression connecting the surface density volume density and velocity dispersion of stars, and show that this relation is a sensitive function of θ and x and use them to obtain certain plausible numbers for our Galaxy in the limits of the present day data. | en |
dc.format.extent | 1008991 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | en | en |
dc.publisher | EDP Sciences | en |
dc.relation.uri | http://adsabs.harvard.edu/abs/1995A%26A...298..438C | en |
dc.subject | Stars: Rotation | en |
dc.subject | Galaxy: Kinematics And Dynamics | en |
dc.subject | Galaxy: Stellar Content | en |
dc.title | Distribution of stars perpendicular to the plane of the Galaxy. II. | en |
dc.type | Article | en |
Appears in Collections: | IIAP Publications |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Chatterjee S.pdf | 985.34 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.