Open AccessThe mass function of pre-main sequence stars
Author(s) -
O. V. Eretnova,
A. E. Dudorov
Publication year - 2022
Publication title -
astronomy at the epoch of multimessenger studies. proceedings of the vak-2021 conference, aug 23–28, 2021
Language(s) - English
Resource type - Conference proceedings
DOI - 10.51194/vak2021.2022.1.1.040
Subject(s) - stars , physics , main sequence , mass distribution , initial mass function , astrophysics , function (biology) , range (aeronautics) , sequence (biology) , stellar mass loss , stellar evolution , star formation , chemistry , materials science , galaxy , biochemistry , evolutionary biology , composite material , biology
The information about 26 pre-man sequence (PMS) binary stars and 34 stars with protoplanetary disks with well determinedmasses from the observations is collected. We constructed the mass distribution of PMS stars and approximated it with apower law dN ∼M −γ dM . The slope is γ = 2.16±0.17 for stars in a mass range of 0.6M ⊙ < M < 6.3M ⊙ , which is close tothe Salpeter mass function. Over the entire mass range, the mass distribution of young stars may be approximated with alognormal law, which the most probable mass M prob = (0.78 ± 0.12)M ⊙ .