THE MASS FUNCTION OF YOUNG SPECTROSCOPIC BINARIES AND STARS WITH PROTOPLANETARY DISKS
Аннотация и ключевые слова
Аннотация (русский):
The observational data on 58 pre-main sequence (PMS) double-lined spectroscopic binaries (SB2) and 115 stars with protoplanetary disks are compiled for statistical investigation. These stars are located in different star-forming regions. The constructed distributions of young stars by component masses, taking into account the effects of observational selection (discovery probability and/or occupied volume), are approximated with a power law $dN \sim M^{-\Gamma} d\log{M}$. The slopes are determined on the interval from the maximum of the distributions to the largest mass value and are equal to $\Gamma= 0.92 \pm 0.23$ for the components of SB2 systems and $\Gamma = 1.51 \pm 0.30$ for the stars with disks, respectively, which are close to the Salpeter's mass function. The most probable values of the mass are $M_p= 0.48 \pm 0.02$ $M_{\odot}$ for stars with protoplanetary disks and $M_p= 0.95 \pm 0.05$ $M_{\odot}$ for SB2 components.

Ключевые слова:
stars: pre-main sequence, binaries: spectroscopic, mass function; methods: statistical
Список литературы

1. Baraffe I., Homeier D., Allard G., et al., 2015, Astronomy \& Astrophysics, 577, id. A42

2. Dotter A., Chaboyer B., Jevremovi c D., et al., 2008, Astrophys. Journal Supplement, 178, 1, p. 89

3. Dudorov A.E. and Eretnova O.V., 2021, Chelyabinskiy Fiziko-Matematicheskiy Zhurnal, 6, p. 347

4. Eretnova O.V., 2023, Astronomy Reports, 67, 9, p. 902

5. Frasca A., Alonso-Santiago J., Catanzaro G., et al., 2023, Astronomy \& Astrophysics, 677, id. A154

6. Garufi A., Ginski C., van Holstein R.G., et al., 2024, Astronomy \& Astrophysics, 685, id. A53

7. Ginski C., Garufi A., Benisty M., et al., 2024, Astronomy \& Astrophysics, 685, id. A52

8. Guilloteau S., Simon M., Pi \'e tu V., et al., 2014, Astronomy \& Astrophysics, 567, id. A117

9. Istomin L.F., 1978, Zvezdnye skopleniya i dvojnye sistemy, p. 148

10. Lee Y.-N., Offner S.S.R., Hennebelle P., et al., 2020, Space Science Reviews, 216, 4, id. 70

11. Popov M.V., 1970, Peremennye zvezdy, 17, p. 209

12. Simon M., Guilloteau S., Besk T. L., et al., 2019, Astrophysical Journal, 884, 1, id. 42

13. Valeg a rd P.-G., Ginski C., Derkink A., et al., 2024, Astronomy \& Astrophysics, 685, id. A54

Войти или Создать
* Забыли пароль?