The DOI matches its Crossref record; 40 of the 40 references it cites were found in a registry or an index.
Evolutionary models for low-mass stars and brown dwarfs: Uncertainties and limits at very young ages
Open accessAbstract
We analyse pre-Main Sequence evolutionary tracks for low mass stars with masses based on the Baraffe et al. ([CITE]) input physics. We also extend the recent Chabrier et al. (2000) evolutionary models based on dusty atmosphere to young brown dwarfs down to one mass of Jupiter. We analyse current theoretical uncertainties due to molecular line lists, convection and initial conditions. Simple tests on initial conditions show the high uncertainties of models at ages 1 Myr. We find a significant sensitivity of atmosphere profiles to the treatment of convection at low gravity and K, whereas it vanishes as gravity increases. This effect adds another source of uncertainty on evolutionary tracks at very early phases. We show that at low surface gravity () the common picture of vertical Hayashi lines with constant Teff is oversimplified. The effect of a variation of initial deuterium abundance is studied. We compare our models with evolutionary tracks available in the literature and discuss the main differences. We finally analyse to what extent current observations of young systems provide a good test for pre-Main Sequence tracks.
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Citations
Cites
A Nongray Theory of Extrasolar Giant Planets and Brown Dwarfs
Burrows, A., Marley, M., Hubbard, W. B., Lunine, J. I., Guillot, T., Saumon, D., Freedman, R., Sudarsky, D., & Sharp, C. (1997) · The Astrophysical Journal · doi:10.1086/305002 · Cited by 1,390
Evolutionary Models for Very Low‐Mass Stars and Brown Dwarfs with Dusty Atmospheres
Chabrier, G., Baraffe, I., Allard, F., & Hauschildt, P. (2000) · The Astrophysical Journal · doi:10.1086/309513 · Cited by 1,307
Self-citationHauschildt, P. H., Allard, F., & Baron, E. (1999) · The Astrophysical Journal · doi:10.1086/306745 · Cited by 1,207
Self-citationPartridge, H., & Schwenke, D. W. (1997) · The Journal of Chemical Physics · doi:10.1063/1.473987 · Cited by 1,155
The Limiting Effects of Dust in Brown Dwarf Model Atmospheres
Allard, F., Hauschildt, P. H., Alexander, D. R., Tamanai, A., & Schweitzer, A. (2001) · The Astrophysical Journal · doi:10.1086/321547 · Cited by 1,062
Self-citationD'Antona, F., & Mazzitelli, I. (1994) · The Astrophysical Journal Supplement Series · doi:10.1086/191867 · Cited by 690
Theory of Low-Mass Stars and Substellar Objects
Chabrier, G., & Baraffe, I. (2000) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev.astro.38.1.337 · Cited by 572
Self-citationStar Formation in the Orion Nebula Cluster
Palla, F., & Stahler, S. W. (1999) · The Astrophysical Journal · doi:10.1086/307928 · Cited by 565
Hauschildt, P. H., Allard, F. C., Ferguson, J. W., Baron, E., & Alexander, D. R. (1999) · The Astrophysical Journal · doi:10.1086/307954 · Cited by 451
Self-citationDynamical Masses of T Tauri Stars and Calibration of Pre–Main‐Sequence Evolution
Simon, M., Dutrey, A., & Guilloteau, S. (2000) · The Astrophysical Journal · doi:10.1086/317838 · Cited by 437
Research works printed but not linked: 16
- Baraffe, 1997, A&A, 327, 1054
- Baraffe, 1998, A&A, 337, 403
- Baraffe, I., Chabrier, G., Allard, F., & Hauschildt, P. H. 2001, From darkness to light: origin and evolution of young stellar clusters, ASP Conf. Ser. 243 (Cargese 2000) [astro-ph/0007157] · arXiv
- Chabrier, 1997, A&A, 327, 1039
- Comerón, 2000, A&A, 359, 269
- Covino, 2000, A&A, 361, L49
- Dutrey, 1994, A&A, 286, 149
- Guilloteau, 1999, A&A, 348, 570
- Hartmann, L. 2000, in Proc. of 33rd ESLAB Symp., Star formation from the small to the large scale, ed. F. Favata, A. A. Kaas, & A. Wilson, ESA SP-445
- Hayashi, 1961, PASJ, 13, 450
- Ludwig, 1999, A&A, 346, 111
- Nordlund, 1999, ASP Conf. Ser., 173, 91
- O'Meara, 2001, AAS, 197, 5604
- Perrin, 1998, A&A, 331, 619
- Siess, 2000, A&A, 358, 593
- Zapatero Osorio, 1999, ApJ, 524, L115, 10.1086/312317 · doi:10.1086/312317
Cited by
Galactic Stellar and Substellar Initial Mass Function
Chabrier, G. (2003) · Publications of the Astronomical Society of the Pacific · doi:10.1086/376392 · Cited by 9,071
Self-citationToward Understanding Massive Star Formation
Zinnecker, H., & Yorke, H. W. (2007) · Annual Review of Astronomy and Astrophysics · doi:10.1146/annurev.astro.44.051905.092549 · Cited by 1,248
Evolutionary models for cool brown dwarfs and extrasolar giant planets. The case of HD 209458
Baraffe, I., Chabrier, G., Barman, T., Allard, F. C., & Hauschildt, P. H. (2003) · Springer Link (Chiba Institute of Technology) · doi:10.1051/0004-6361:20030252/pdf · Cited by 916
Self-citationThe Evolution of L and T Dwarfs in Color‐Magnitude Diagrams
Saumon, D., & Marley, M. S. (2008) · The Astrophysical Journal · doi:10.1086/592734 · Cited by 693
“Baraffe et al. (2002) have shown that the evolution of brown dwarfs is quite sensitive to the choice of initial state for ages under 1Myr.”
BackgroundMethodInfluentialPecaut, M. J., Mamajek, E. E., & Bubar, E. J. (2012) · The Astrophysical Journal · doi:10.1088/0004-637x/746/2/154 · Cited by 564
“…below the limiting mass for thermonuclear fusion of F-Type Members of Sco-Cen 13 we use our revised age for Upper Sco of 11 Myr and the object’s reported Teff of 1800±200 K (Lafrenière et al. 2010) to obtain a mass of 13+2−3 MJup using the DUSTY models (Chabrier et al. 2000; Baraffe et al. 2002).”
Method
Metadata
- Authors
- Baraffe, I., Chabrier, G., Allard, F., & Hauschildt, P. H.
- Venue
- Astronomy & Astrophysics
- Publisher
- EDP Sciences
- Published
- 2002-02
- Volume
- 382
- Issue
- 2
- Pages
- 563-572
- ISSN
- 0004-6361 (ISSN-L)
- 1432-0746
- OpenAlex
- W2055802842
- Cited by
- 656
- References
- 40
- FWCI
- 24.54
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Baraffe, I., Chabrier, G., Allard, F., & Hauschildt, P. H. (2002). Evolutionary models for low-mass stars and brown dwarfs: Uncertainties and limits at very young ages. Astronomy & Astrophysics. https://doi.org/10.1051/0004-6361%3A20011638
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
