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Star-disk interaction in brown dwarfs: implications for substellar formation

Published online by Cambridge University Press:  01 May 2007

Subhanjoy Mohanty
Subhanjoy Mohanty*
Affiliation:
Harvard-Smithsonian CfA, 60 Garden Street, M.S.42, Cambridge, MA 02138, USA email: [email protected]
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Abstract

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I review the current state of knowledge regarding disk accretion in young brown dwarfs (BDs), and the interaction of the disk with the central object. In particular, I discuss (1) observations of accretion/outflow phenomena in BDs; (2) techniques for measuring accretion rates (Ṁacc); (3) the dependence of Ṁacc on the central mass from stars to brown dwarfs; (4) the temporal evolution of Ṁacc; and (5) observations of variability in the accretion line profiles. I then examine the implications of these issues for the formation mechanism of BDs, and discuss new observations that can further constrain substellar origins.

Keywords

Circumstellar matterplanetary systemsstars: formationstars: low-massbrown dwarfsstars: pre-main-sequence
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 3 , Symposium S243: Star-Disk Interaction in Young Stars , May 2007 , pp. 345 - 356
Copyright
Copyright © International Astronomical Union 2007

References

Barrado y Navascués, D. & Martín, E., 2003, AJ, 126, 2997Google Scholar
Barrado y Navascués, D., Mohanty, S. & Jayawardhana, R., 2004, ApJ, 604, 284CrossRefGoogle Scholar
Basri, G. & Reiners, A., 2006, AJ, 132, 663Google Scholar
Bate, M. R., Bonnell, I. A., Bromm, V., 2003, MNRAS, 339, 577CrossRefGoogle Scholar
Bourke, T. et al. , 2006, ApJ Letters, 649, L37CrossRefGoogle Scholar
Chauvin, G. et al. , 2004, A&A Letters, 425, L29Google Scholar
Dullemond, C., Natta, A., Testi, L., 2006, ApJ Letters, 645, L69Google Scholar
Gatti, T., Testi, L., Natta, A., Randich, S., & Muzerolle, J., 2006, astro-ph/0609291Google Scholar
Greaves, J. S., 2005, Astronomische Nachrichten, 326, 1044Google Scholar
Hartmann, L., D'Alessio, P., Calvet, N., Muzerolle, J., 2006, ApJ, 648, 484CrossRefGoogle Scholar
Huard, T. et al. , 2006, ApJ, 640, 391CrossRefGoogle Scholar
Jayawardhana, R., Mohanty, S., & Basri, G. 2003, ApJ, 592, 282Google Scholar
Kraus, A., White, R., & Hillenbrand, L., 2006, ApJ, 649, 306Google Scholar
Luhman, K., 2004, ApJ, 614, 398Google Scholar
Luhman, K., 2006, ApJ, 645, 676CrossRefGoogle Scholar
Martín, E. L., 1998, AJ, 115, 351CrossRefGoogle Scholar
Mohanty, S., Jayawardhana, R., & Barrado y Navascués, D., 2003, ApJ Letters, 593, L109Google Scholar
Mohanty, S., Jayawardhana, R., & Basri, G., 2005, ApJ, 626, 498Google Scholar
Muzerolle, J., Calvet, N., & Hartmann, L., 1998a, ApJ, 492, 743Google Scholar
Muzerolle, J., Hartmann, L., & Calvet, N., 1998b, AJ, 116, 455CrossRefGoogle Scholar
Muzerolle, J. et al. , 2000, ApJ Letters, 545, L141Google Scholar
Muzerolle, J., Hillenbrand, L., Calvet, N., Briceño, C., Hartmann, L., 2003, ApJ, 592, 266CrossRefGoogle Scholar
Muzerolle, J., Luhman, K., Briceño, C., Hartmann, L., & Calvet, N., 2005, ApJ, 625, 906CrossRefGoogle Scholar
Natta, A., Testi, L., Muzerolle, J., Randich, S., Comerón, F., & Persi, P., 2004, A&A, 424, 603 [N04]Google Scholar
Natta, A., Testi, L., & Randich, S., 2006, A&A, 452, 245Google Scholar
Natta, A. & Testi, L., 2006, Proceedings of “Science with ALMA: A new era for astrophyisics”, http://www.oan.es/alma2006/contributions/Natta.pdfGoogle Scholar
Padoan, P. & Nordlund, Å., 2004, ApJ, 617, 559Google Scholar
Padoan, P., Kritsuk, A., Norman, M., & Nordlund, Å., 2005, ApJ Letters, 622, L61CrossRefGoogle Scholar
Reipurth, B. & Clarke, C., 2001, AJ, 122, 432.CrossRefGoogle Scholar
Scholz, A. & Eislöffel, J., 2005, A&A, 429, 1007Google Scholar
Scholz, A., Jayawardhana, R., & Brandeker, A., 2005, ApJ Letters, 629, L41Google Scholar
Scholz, A., Jayawardhana, R., & Wood, K., 2006, ApJ, 645, 1498CrossRefGoogle Scholar
Sicilia-Aguilar, A., Hartmann, L., Hernández, J., Briceño, C., Calvet, N., 2005, AJ, 130, 188Google Scholar
Walsh, A. et al. , 2007, ApJ, 655, 958CrossRefGoogle Scholar
Whelan, E. et al. , 2005, Nature, 435, 652Google Scholar
Whelan, E. et al. , 2007, ApJ Letters, 659, L45Google Scholar
White, R. J. & Basri, G., 2003, ApJ, 582, 1109CrossRefGoogle Scholar
Young, C. et al. , 2004, ApJS, 154, 396CrossRefGoogle Scholar