SIMBAD references

2013A&A...553A.124R - Astronomy and Astrophysics, volume 553A, 124-124 (2013/5-1)

Universality of the companion mass-ratio distribution.


Abstract (from CDS):

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 results over the common mass ratio and separation range. The new best-fit power law of the CMRD in the field, combining two previous sets of data, is dN/dq ∝qβ, with β=0.25±0.29.

Abstract Copyright:

Journal keyword(s): binaries: general - stars: formation - stars: low-mass - stars: solar-type

Simbad objects: 2

goto Full paper

goto View the references in ADS

To bookmark this query, right click on this link: simbad:2013A&A...553A.124R and select 'bookmark this link' or equivalent in the popup menu


© Université de Strasbourg/CNRS

    • Contact