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Dynamical Mass Determination of the Young Nearby System HD 160934

R. Azulay, J. C. Guirado, M. Marcaide, I. Martí-Vidal, E. Ros

Transactions of IAA RAS, issue 41, 23–27 (2017)

Keywords: VLBI, Astrometry, Binary Stars

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.

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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 // Transactions of IAA RAS. — 2017. — Issue 41. — P. 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 = {Transactions of IAA RAS},
  keyword = {VLBI, Astrometry, Binary Stars},
  pages = {23--27},
  title = {Dynamical Mass Determination of the Young Nearby System HD 160934},
  url = {http://iaaras.ru/en/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  - Transactions of IAA RAS
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/en/library/paper/1697/
ER  -