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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

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