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Infrared Studies of Protostellar Binaries

Published online by Cambridge University Press:  23 September 2016

Tom Greene
Tom Greene*
Affiliation:
NASA's Ames Research Center, M.S. 245-6, Moffett Field CA 94035, USA

Abstract

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Although much progress has been made in studying the multiplicity properties of pre-main-sequence T Tauri stars over the past decade, younger and more embedded protostellar systems are just now being surveyed for multiplicity. I examine several recent infrared imaging and spectroscopic studies which reveal the multiplicity properties of embedded protostars for the first time. The overall binary / multiplicity fraction of protostars is statistically indistinguishable from that of pre-main-sequence stars when measured over similar separation distances. Some individual components of protostellar binaries appear to be coeval from their spectral energy distributions or spectra. However, there are some systems which appear to consist of both a protostar and a pre-main-sequence star, and the coevality of these systems is very uncertain. There is much yet to be learned about the multiplicity properties of protostars, and future high resolution near-IR imaging surveys will likely make much headway.

Type
Part 5: Low Mass Star Formation
Information
Symposium - International Astronomical Union , Volume 221: Star Formation at High Angular Resolution , 2004 , pp. 223 - 228
Copyright
Copyright © Astronomical Society of the Pacific 2004 

References

Allen, L. E., Myers, P. C., Di Francesco, J., Mathieu, R., Chen, H., & Young, E. 2002, ApJ, 566, 993 Google Scholar
Barsony, M., Greene, T. P., & Blake, G. A. 2002, ApJ, 572, L75 Google Scholar
Delgado-Donate, E. J.; Clarke, C. J.; Bate, M. R. 2003, MNRAS, 342, 926 Google Scholar
Duchêne, G. 1999, A&A, 341, 547 Google Scholar
Ghez, A. M., McCarthy, D. W., Patience, J. L., & Beck, T. L. 1997, ApJ, 481, 378 Google Scholar
Greene, T. P. & Lada, C. J. 1996, AJ, 112, 2184 Google Scholar
Haisch, K. E., Barsony, M., Greene, T. P., & Ressler, M. E. 2002, AJ, 124, 2841 Google Scholar
Haisch, K. E., Greene, T. P., Barsony, & Stahler, S. W. 2003, AJ, accepted Google Scholar
Melo, C. H. F. 2003, A&A, in press Google Scholar
Petr, M. G., Coude Du Foresto, V., Beckwith, S. V. W., Richichi, A., & McCaughrean, M. J. 1998, ApJ, 500, 825 Google Scholar
Prato, L., Greene, T. P., & Simon, M. 2003, ApJ, 584, 853 Google Scholar
Reipurth, B. 2000, ApJ, 120, 3177 Google Scholar
Reipurth, B., Chini, R., Krugel, E., Kreysa, E., & Sievers, A. 1993, A&A, 273, 221 Google Scholar
Ressler, M. E. & Barsony, M. 2001, AJ, 121, 1098 Google Scholar
Sterzik, M. F. & Durisen, R. H. 2003, A&A, 400, 103 Google Scholar
Tamura, M., Gatley, I., Waller, W., & Werner, M. W. 1991, ApJ, 374, L25 CrossRefGoogle Scholar
White, R. J. & Ghez, A. M. 2001, ApJ, 556, 265 Symposium, 200, 464 Google Scholar