The AB Doradus system revisited: The dynamical mass of AB Dor A

J. C. Guirado; I. Martí-Vidal; J. M. Marcaide; L. M. Close; J. F. Lestrade; D. L. Jauncey; S. Jiménez-Monferrer; D. L. Jones; R. A. Preston; J. E. Reynolds

doi:10.1007/978-3-642-11250-8_13

The AB Doradus system revisited: The dynamical mass of AB Dor A

J. C. Guirado, I. Martí-Vidal, J. M. Marcaide, L. M. Close, J. F. Lestrade, D. L. Jauncey, S. Jiménez-Monferrer, D. L. Jones, R. A. Preston, J. E. Reynolds

Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Scopus citations

Abstract

We report new radio interferometric observations of the quadruple pre-main-sequence (PMS) system AB Doradus. From these observations, combined with existing VLT near-infrared relative astrometry, we have refined the estimates of the dynamical masses of the system. In particular, we find component masses of 0:86 ± 0:09M_⊙ and 0:090 ± 0:003M_⊙ for AB Dor A and AB Dor C, respectively. These dynamical masses, coupled with temperatures and luminosities, allow for comparison with theoretical stellar models. The case of AB Dor C, in terms of calibration of evolutionary models of low-mass young stars has been widely reported in previous studies. In this contribution, we compare the measured properties of ABDorA with several solar-composition models for PMS stars. The models used in this comparison predict the dynamical mass to within the quoted uncertainties.

Original language	English (US)
Title of host publication	Highlights of Spanish Astrophysics V
Publisher	Kluwer Academic Publishers
Pages	139-145
Number of pages	7
ISBN (Print)	9783642112492
DOIs	https://doi.org/10.1007/978-3-642-11250-8_13
State	Published - 2010
Event	8th Scientific Meeting of the Spanish Astronomical Society, SEA 2008 - Santander, Spain Duration: Jul 7 2008 → Jul 11 2008

Publication series

Name	Astrophysics and Space Science Proceedings
ISSN (Print)	1570-6591
ISSN (Electronic)	1570-6605

Other

Other	8th Scientific Meeting of the Spanish Astronomical Society, SEA 2008
Country/Territory	Spain
City	Santander
Period	7/7/08 → 7/11/08

ASJC Scopus subject areas

Astronomy and Astrophysics

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10.1007/978-3-642-11250-8_13

Cite this

Guirado, J. C., Martí-Vidal, I., Marcaide, J. M., Close, L. M., Lestrade, J. F., Jauncey, D. L., Jiménez-Monferrer, S., Jones, D. L., Preston, R. A., & Reynolds, J. E. (2010). The AB Doradus system revisited: The dynamical mass of AB Dor A. In Highlights of Spanish Astrophysics V (pp. 139-145). (Astrophysics and Space Science Proceedings). Kluwer Academic Publishers. https://doi.org/10.1007/978-3-642-11250-8_13

The AB Doradus system revisited : The dynamical mass of AB Dor A. / Guirado, J. C.; Martí-Vidal, I.; Marcaide, J. M.; Close, L. M.; Lestrade, J. F.; Jauncey, D. L.; Jiménez-Monferrer, S.; Jones, D. L.; Preston, R. A.; Reynolds, J. E.

Highlights of Spanish Astrophysics V. Kluwer Academic Publishers, 2010. p. 139-145 (Astrophysics and Space Science Proceedings).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Guirado, JC, Martí-Vidal, I, Marcaide, JM, Close, LM, Lestrade, JF, Jauncey, DL, Jiménez-Monferrer, S, Jones, DL, Preston, RA & Reynolds, JE 2010, The AB Doradus system revisited: The dynamical mass of AB Dor A. in Highlights of Spanish Astrophysics V. Astrophysics and Space Science Proceedings, Kluwer Academic Publishers, pp. 139-145, 8th Scientific Meeting of the Spanish Astronomical Society, SEA 2008, Santander, Spain, 7/7/08. https://doi.org/10.1007/978-3-642-11250-8_13

Guirado, J. C. ; Martí-Vidal, I. ; Marcaide, J. M. ; Close, L. M. ; Lestrade, J. F. ; Jauncey, D. L. ; Jiménez-Monferrer, S. ; Jones, D. L. ; Preston, R. A. ; Reynolds, J. E. / The AB Doradus system revisited : The dynamical mass of AB Dor A. Highlights of Spanish Astrophysics V. Kluwer Academic Publishers, 2010. pp. 139-145 (Astrophysics and Space Science Proceedings).

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abstract = "We report new radio interferometric observations of the quadruple pre-main-sequence (PMS) system AB Doradus. From these observations, combined with existing VLT near-infrared relative astrometry, we have refined the estimates of the dynamical masses of the system. In particular, we find component masses of 0:86 ± 0:09M⊙ and 0:090 ± 0:003M⊙ for AB Dor A and AB Dor C, respectively. These dynamical masses, coupled with temperatures and luminosities, allow for comparison with theoretical stellar models. The case of AB Dor C, in terms of calibration of evolutionary models of low-mass young stars has been widely reported in previous studies. In this contribution, we compare the measured properties of ABDorA with several solar-composition models for PMS stars. The models used in this comparison predict the dynamical mass to within the quoted uncertainties.",

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AU - Marcaide, J. M.

AU - Close, L. M.

AU - Lestrade, J. F.

AU - Jauncey, D. L.

AU - Jiménez-Monferrer, S.

AU - Jones, D. L.

AU - Preston, R. A.

AU - Reynolds, J. E.

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N2 - We report new radio interferometric observations of the quadruple pre-main-sequence (PMS) system AB Doradus. From these observations, combined with existing VLT near-infrared relative astrometry, we have refined the estimates of the dynamical masses of the system. In particular, we find component masses of 0:86 ± 0:09M⊙ and 0:090 ± 0:003M⊙ for AB Dor A and AB Dor C, respectively. These dynamical masses, coupled with temperatures and luminosities, allow for comparison with theoretical stellar models. The case of AB Dor C, in terms of calibration of evolutionary models of low-mass young stars has been widely reported in previous studies. In this contribution, we compare the measured properties of ABDorA with several solar-composition models for PMS stars. The models used in this comparison predict the dynamical mass to within the quoted uncertainties.

AB - We report new radio interferometric observations of the quadruple pre-main-sequence (PMS) system AB Doradus. From these observations, combined with existing VLT near-infrared relative astrometry, we have refined the estimates of the dynamical masses of the system. In particular, we find component masses of 0:86 ± 0:09M⊙ and 0:090 ± 0:003M⊙ for AB Dor A and AB Dor C, respectively. These dynamical masses, coupled with temperatures and luminosities, allow for comparison with theoretical stellar models. The case of AB Dor C, in terms of calibration of evolutionary models of low-mass young stars has been widely reported in previous studies. In this contribution, we compare the measured properties of ABDorA with several solar-composition models for PMS stars. The models used in this comparison predict the dynamical mass to within the quoted uncertainties.

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The AB Doradus system revisited: The dynamical mass of AB Dor A

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