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Infrared Jets from Protostars: The case of HH212

Published online by Cambridge University Press:  12 April 2016

Hans Zinnecker  and
Mark J. McCaughrean
Hans Zinnecker
Affiliation:
Astrophysikalisches Institut Potsdam, Germany
Mark J. McCaughrean
Affiliation:
Astrophysikalisches Institut Potsdam, Germany

Abstract

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We describe the appearance and significance of HH212, the most symmetric two-sided molecular hydrogen jet/counterjet system yet discovered. This prototype embedded protostellar H2 jet emanates from a low-luminosity isolated protostar in Orion. It exhibits matched pairs of knots and bow-shocks interpreted as arising from a time-variable source, which we take to indicate that protostellar accretion through the encircling disk is non-steady and pulsed.

Type
Part 11. Young Stellar Objects
Information
International Astronomical Union Colloquium , Volume 163: Accretion Phenomena and Related Outflows , 1997 , pp. 531 - 535
Copyright
Copyright © Astronomical Society of the Pacific 1997

References

Bally, J., Morse, J., & Reipurth, B. 1996, in Science with the Hubble Space Telescope—II, eds. Benvenuti, P., Macchetto, F.D., & Schreier, E.J., p 491 Google Scholar
Burrows, C. et al. 1997, ApJ, (in press)Google Scholar
McCaughrean, M.J., Rayner, J.T., & Zinnecker, H. 1994, ApJ, 436, L189 Google Scholar
Sargent, A.I. & McCaughrean, M.J. 1997, in preparationGoogle Scholar
Reipurth, B., 1994, A General Catalog of Herbig-Haro Objects, electronically published via anonymous ftp at ftp.hq.eso.org, directory pub/Catalogs/Herbig-HaroGoogle Scholar
Suttner, G., Smith, M.D., Yorke, H.W., & Zinnecker, H. 1997, A&A, (in press)Google Scholar
Smith, M.D., Suttner, G., & Zinnecker, H. 1997, A&A, (in press)Google Scholar
Smith, M.D., Brand, P.W.J.L. 1990, MNRAS, 245, 108 Google Scholar
Wouterloot, J.G.A. & Walmsley, C.M. 1986, A&A, 168, 237 Google Scholar
Wouterloot, J.G.A., Henkel, C., & Walmsley, C.M. 1989, A&A, 215, 131 Google Scholar
Zinnecker, H., Bastien, P., Arcoragi, J.P., & Yorke, H.W. 1992, A&A, 242, 726 Google Scholar
Zinnecker, H., McCaughrean, M.J., & Rayner, J.T. 1996, in Disks and Outflows around Young Stars, eds. Beckwith, S., Staude, J., Quetz, A., & Natta, A., Lecture Notes in Physics 465, (Heidelberg: Springer), p 236 Google Scholar