The Mass Distribution of Secondaries to Solar-Type Stars
2004 ◽
Vol 191
◽
pp. 37-40
◽
Keyword(s):
Low Mass
◽
AbstractTwo previous studies of the secondary mass function in spectroscopic binaries by Abt & Levy (1976) and by Duquennoy & Mayor (1991) are shown to be in good agreement if they are both plotted with the same abscissa scale. A new study of 271 main-sequence stars later than F6 V made with a radial-velocity accuracy of ±0.10 km s-1 yielded 10 new sets of orbital elements in addition to the 59 published ones. The resulting secondary mass function is nearly flat and shows that 2.2±1.5% of the primaries have low-mass (0.01–0.10 M⊙) companions. In contrast, the secondary mass function for visual binaries with separations >500 AU fits a van Rhijn function, as was shown previously by Abt and Levy.
2020 ◽
Vol 496
(2)
◽
pp. 1355-1368
Keyword(s):
2001 ◽
Vol 200
◽
pp. 165-168
◽
Keyword(s):
Theoretical estimates of the convective turnover time for low-mass, rotating pre-main sequence stars
2006 ◽
Vol 2
(S239)
◽
pp. 446-448
Keyword(s):
Low Mass
◽