Theoretical Limits on the Properties of Low-Velocity M-Dwarfs
1975 ◽
Vol 69
◽
pp. 321-324
Keyword(s):
M Dwarfs
◽
Using a version of the Toomre-criterion (Toomre, 1964) for a mixture of stellar populations, limits are derived for the kinematical properties of the newly discovered population of low-velocity M-dwarfs (Weistrop, 1972; Murray and Sanduleak, 1972); these stars are claimed to be a large mass-fraction (≳ 0.5) of all stars in the solar neighbourhood and to have only 10 km s−1 velocity dispersion. They could make up for the locally missing mass (Oort, 1965; Schmidt, 1974). It is found that a configuration of stellar populations with the M-dwarfs included (having such properties) is not stable in the sense of the Toomre-criterion. The limiting stability properties are given.
2020 ◽
Vol 493
(2)
◽
pp. 2952-2964
◽
1967 ◽
Vol 31
◽
pp. 265-278
◽
Keyword(s):
2020 ◽
Vol 499
(4)
◽
pp. 5623-5640
Keyword(s):
2019 ◽
Vol 14
(S351)
◽
pp. 524-527
Keyword(s):
2017 ◽
Vol 13
(S334)
◽
pp. 304-305
1986 ◽
Vol 320
(1556)
◽
pp. 553-555
◽