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Issue A&A
Volume 427, Number 2, November IV 2004
Page(s) 637 - 649
Section Stellar structure and evolution
DOI http://dx.doi.org/10.1051/0004-6361:20040348



A&A 427, 637-649 (2004)
DOI: 10.1051/0004-6361:20040348

Improved fundamental parameters for the low-mass pre-main sequence eclipsing system RX J0529.4+0041

E. Covino1, A. Frasca2, J. M. Alcalá1, R. Paladino3 and M. F. Sterzik4

1  INAF - Osservatorio Astronomico di Capodimonte, via Moiariello 16, 80131 Napoli, Italy
    e-mail: covino@na.astro.it
2  INAF - Osservatorio Astrofisico di Catania, via S. Sofia, 78, Città Universitaria, 95123 Catania, Italy
3  INAF - Osservatorio Astronomico di Cagliari, Loc. Poggio dei Pini, Strada 54, 09012 Capoterra, Cagliari, Italy
4  European Southern Observatory, Casilla 190001, Santiago 19, Chile

(Received 27 February 2004 / Accepted 21 July 2004 )

Abstract
We report new photometric observations and a new determination of the fundamental stellar parameters for the low-mass pre-main sequence eclipsing system RX J0529.4+0041A based on high-precision, near-IR ( $\it JHK$) differential photometry obtained using adaptive optics at the ESO-La Silla 3.6 m telescope, and $\it UBV(RI)_{\rm C}$ CCD photometry performed with the OIG camera at TNG. The new photometric data, in combination with already published photoelectric photometry and solution of the radial velocity curve, yield a more precise determination of the absolute dimensions and masses as well as of other basic physical properties of the components.


Key words: stars: pre-main sequence -- stars: binaries: eclipsing -- stars: binaries: spectroscopic -- stars: fundamental parameters -- stars: individual: RX J0529.4+0041 -- stars: binaries: close

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© ESO 2004


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