Discovery of two young brown dwarfs in an eclipsing binary system

Nature

Volumn 440, Issue 7082, 2006, Pages 311-314

  Stassun, Keivan G ^a   Mathieu, Robert D ^b   Valenti, Jeff A ^c  

^a VANDERBILT UNIVERSITY   (United States)

^b UNIVERSITY OF WISCONSIN MADISON   (United States)

^c STScI   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

GRAVITATIONAL EFFECTS; MATHEMATICAL MODELS; PHYSICAL PROPERTIES; PLANETS;

BINARY SYSTEM; BROWN DWARFS; THEORETICAL MODELS;

GALAXIES;

SCIENCE AND TECHNOLOGY;

ARTICLE; ASTRONOMY; GRAVITY; MASS; MEASUREMENT; PRIORITY JOURNAL; THEORETICAL MODEL;

EID: 33645035181     PISSN: 00280836     EISSN: 14764687     Source Type: Journal    
DOI: 10.1038/nature04570     Document Type: Article

References (30)

1. Chabrier, G. & Baraffe, I. Theory of low-mass stars and substellar objects. Annu. Rev. Astron. Astrophys. 38, 337-377 (2000).
2. Burrows, A., Hubbard, W. B., Lunine, J. I. & Liebert, J. The theory of brown dwarfs and extrasolar giant planets. Rev. Mod. Phys. 73, 719-765 (2001).
3. Basri, G. Observations of brown dwarfs. Annu. Rev. Astron. Astrophys. 38, 485-519 (2000).
4. Baraffe, I., Chabrier, G., Allard, F. & Hauschildt, P. H. Evolutionary models for solar metallicity low-mass stars: mass-magnitude relationships and colour-magnitude diagrams. Astron. Astrophys. 337, 403-412 (1998).
5. D'Antona, F. & Mazzitelli, I. Evolution of low mass stars. Mem. Soc. Astron. It. 68, 807-822 (1997).
6. Zapatero Osorio, M. R. et al. Dynamical masses of the binary brown dwarf GJ 569 Bab. Astrophys. J. 615, 958-971 (2004).
7. Andersen, J. Accurate masses and radii of normal stars. Astron. Astrophys. Rev. 3, 91-126 (1991).
8. Wilson, R. E. & Devinney, E. J. Realization of accurate close-binary light curves: application to MR Cygni. Astrophys. J. 166, 605-620 (1971).
9. Prsa, A. & Zwitter, T. A computational guide to physics of eclipsing binaries. I. Demonstrations and perspectives. Astrophys. J. 628, 426-438 (2005).
10. Chabrier, G., Baraffe, I., Allard, F. & Hauschildt, P. Evolutionary models for very low-mass stars and brown dwarfs with dusty atmospheres. Astrophys. J. 542, 464-472 (2000).
11. Scholz, A. & Eisloffel, J. Rotation and variability of very low mass stars and brown dwarfs near epsilon Ori. Astron. Astrophys. 429, 1007-1023 (2005).
12. Mohanty, S. & Basri, G. Rotation and activity in mid-M to L field dwarfs. Astrophys. J. 583, 451-472 (2003).
13. ⊙ secondary. Astrophys. J. Suppl. 151, 357-385 (2004).
14. Bessell, M. S. The late-M dwarfs. Astron. J. 101, 662-676 (1991).
15. Slesnick, C. L., Hillenbrand, L. A. & Carpenter, J. M. The spectroscopically determined substellar mass function of the Orion Nebula cluster. Astrophys. J. 610, 1045-1063 (2004).
16. Hillenbrand, L. A. & White, R. J. An assessment of dynamical mass constraints on pre-main-sequence evolutionary tracks. Astrophys. J. 604, 741-757 (2004).
17. Carpenter, J. M., Hillenbrand, L. A. & Skrutskie, M. F. Near-infrared photometric variability of stars toward the Orion A molecular cloud. Astron. J. 121, 3160-3190 (2001).
18. Genzel, R. & Stutzki, J. The Orion molecular cloud and star-forming region. Annu. Rev. Astron. Astrophys. 27, 41-85 (1989).
19. Sicilia-Aguilar, A. et al. Accretion, kinematics, and rotation in the Orion Nebula Cluster: Initial results from Hectochelle. Astron. J. 129, 363-381 (2005).
20. Hillenbrand, L. A. On the stellar population and star-forming history of the Orion Nebula Cluster. Astron. J. 113, 1733-1768 (1997).
21. Palla, F. & Stahler, S. W. Star formation in the Orion Nebula Cluster. Astrophys. J. 525, 772-783 (1999).
22. Pont, F. et al. A planet-sized transiting star around OGLE-TR-122. Accurate mass and radius near the hydrogen-burning limit. Astron. Astrophys. 433, L21-L24 (2005).
23. Reipurth, B. & Clarke, C. The formation of brown dwarfs as ejected stellar embryos. Astron. J. 122, 432-439 (2001).
24. Bate, M. R. & Bonnell, I. A. The origin of the initial mass function and its dependence on the mean Jeans mass in molecular clouds. Mon. Not. R. Astron. Soc. 356, 1201-1221 (2005).
25. Bate, M. R., Bonnell, I. A. & Bromm, V. The formation mechanism of brown dwarfs. Mon. Not. R. Astron. Soc. 332, L65-L68 (2002).
26. Maxted, P. F. L. & Jeffries, R. D. On the frequency of close binary systems among very low-mass stars and brown dwarfs. Mon. Not. R. Astron. Soc. 362, L45-L49 (2005).
27. Mohanty, S., Jayawardhana, R. & Basri, G. Measuring fundamental parameters of substellar objects. II. Masses and radii. Astrophys. J. 609, 885-905 (2004).
28. Mohanty, S. et al. Measuring fundamental parameters of substellar objects. I. Surface gravities. Astrophys. J. 609, 854-884 (2004).
29. Doppmann, G. W. & Jaffe, D. T. A spectroscopic technique for measuring stellar properties of pre-main-sequence stars. Astron. J. 126, 3030-3042 (2003).
30. Doppmann, G. W., Jaffe, D. T. & White, R. J. Stellar properties of pre-main-sequence stars from high-resolution near-infrared spectra. Astron. J. 126, 3043-3057 (2003).