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Universality of the companion mass-ratio distribution
2013
Astronomy and Astrophysics
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We present new results regarding the companion mass-ratio distribution (CMRD) of stars, as a follow-up of our previous work. We used a maximum-likelihood-estimation method to re-derive the field CMRD power law avoiding dependence on the arbitrary binning. We also considered two new surveys of multiples in the field for solar-type stars and M dwarfs to test the universality of the CMRD. We found no significant differences in the CMRD for M dwarfs and solar-type stars compared with previous
doi:10.1051/0004-6361/201321631
fatcat:2lm2ielx65eyxkzq2mlij3k3ru