Abhyankar, K. D. (1974) Variation of the galactic force law in the region of the sun Pramana - Journal of Physics, 2 (6). pp. 336-340. ISSN 0304-4289
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Official URL: http://www.ias.ac.in/j_archive/pramana/2/6/336-340...
Related URL: http://dx.doi.org/10.1007/BF02847247
Abstract
From the radial velocity data for O-B5 stars within 3 kpc of the Sun the variation of the semi-axes Σ1 and Σ2 of the velocity ellipsoid in the solar region is estimated. It is found that both the semi-axes as well as their ratio Σ2/Σ1 decrease away from the galactic centre. The value of Σ2/Σ1 changes from 1.17 at R=9 kpc to 0.48 atR=11 kpc passing through a value of 0.86 at the solar distance of R0=10 kpc. These results are consistent with the usually assumed inverse square law of force in the outer regions of the galaxy.
| Item Type: | Article |
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| Source: | Copyright of this article belongs to Indian Academy of Sciences. |
| Keywords: | Galactic Force Law; Velocity Ellipsoid |
| ID Code: | 23874 |
| Deposited On: | 01 Dec 2010 12:59 |
| Last Modified: | 17 May 2016 07:40 |
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