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## Dynamical Mass Determination of the Young Nearby System HD 160934

Труды ИПА РАН, вып. 41, 23–27 (2017)

Ключевые слова: VLBI, Astrometry, Binary Stars

### Аннотация

We present phase-reference EVN observations that are part of a program to study the radio emission and kinematics of a sample of stars belonging to the AB Doradus moving group. The main aim of this program is to obtain precise estimates of the dynamical mass of young, low-mass stars, which in combination with photometric measurements will provide precise benchmarks for calibrating pre-main-sequence (PMS) stellar evolutionary models. Calibration of PMS models appears essential, as they are widely used to predict the masses of low-mass objects as brown dwarfs and planets. Previous studies show that model predictions are in disagreement with experimental results for masses below 1.2 M⊙. Among the stars included in our program, we emphasize the results obtained in the stellar system HD 160934 A/c.

### Цитирование

Текст
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R. Azulay, J. C. Guirado, M. Marcaide, I. Martí-Vidal, E. Ros. Dynamical Mass Determination of the Young Nearby System HD 160934 // Труды ИПА РАН. — 2017. — Вып. 41. — С. 23–27. @article{azulay2017, abstract = {We present phase-reference EVN observations that are part of a program to study the radio emission and kinematics of a sample of stars belonging to the AB Doradus moving group. The main aim of this program is to obtain precise estimates of the dynamical mass of young, low-mass stars, which in combination with photometric measurements will provide precise benchmarks for calibrating pre-main-sequence (PMS) stellar evolutionary models. Calibration of PMS models appears essential, as they are widely used to predict the masses of low-mass objects as brown dwarfs and planets. Previous studies show that model predictions are in disagreement with experimental results for masses below 1.2 M⊙. Among the stars included in our program, we emphasize the results obtained in the stellar system HD 160934 A/c.}, author = {R. Azulay and J.~C. Guirado and M. Marcaide and I. Martí-Vidal and E. Ros}, issue = {41}, journal = {Труды ИПА РАН}, keyword = {VLBI, Astrometry, Binary Stars}, pages = {23--27}, title = {Dynamical Mass Determination of the Young Nearby System HD 160934}, url = {http://iaaras.ru/library/paper/1697/}, year = {2017} } TY - JOUR TI - Dynamical Mass Determination of the Young Nearby System HD 160934 AU - Azulay, R. AU - Guirado, J. C. AU - Marcaide, M. AU - Martí-Vidal, I. AU - Ros, E. PY - 2017 T2 - Труды ИПА РАН IS - 41 SP - 23 AB - We present phase-reference EVN observations that are part of a program to study the radio emission and kinematics of a sample of stars belonging to the AB Doradus moving group. The main aim of this program is to obtain precise estimates of the dynamical mass of young, low-mass stars, which in combination with photometric measurements will provide precise benchmarks for calibrating pre- main-sequence (PMS) stellar evolutionary models. Calibration of PMS models appears essential, as they are widely used to predict the masses of low-mass objects as brown dwarfs and planets. Previous studies show that model predictions are in disagreement with experimental results for masses below 1.2 M⊙. Among the stars included in our program, we emphasize the results obtained in the stellar system HD 160934 A/c. UR - http://iaaras.ru/library/paper/1697/ ER -