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Far-IR Spectrophotometry of HH Flows with the ISO Long-Wavelength Spectrometer

  • R. Liseau (a1), T. Giannini (a2), B. Nisini (a2), P. Saraceno (a2), L. Spinoglio (a2), B. Larsson (a3), D. Lorenzetti (a4) and E. Tommasi (a5)...
Abstract

Full Iso-Lws spectral scans between about 45 to 190 μm of 17 individual HH objects in 7 star forming regions have revealed essentially only [O I] 63 μm line emission, implying that the Fircooling of these objects is totally dominated by this line alone. In this case, J-shock models can be used to determine the mass loss rates of the HH exciting sources. These mass loss rates are in reasonably good agreement with those estimated for the accompanying CO flows, providing first observational evidence that HH and molecular flows are driven by the same agent. The L mechL bol relation, based on our results with the Lws, implies that young stellar objects of lower mass are loosing mass at relatively higher rates than their more massive counterparts.

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References
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Proceedings of the International Astronomical Union
  • ISSN: -
  • EISSN: 0074-1809
  • URL: /core/journals/proceedings-of-the-international-astronomical-union
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