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The Orion Nebula in the Far-Infrared: High-J CO and fine-structure lines mapped by FIFI-LS/SOFIA

  • Randolf Klein (a1), Leslie W. Looney (a2), Erin Cox (a2), Christian Fischer (a3), Christof Iserlohe (a3) and Alfred Krabbe (a3)...

Abstract

The Orion Nebula is the closest massive star forming region allowing us to study the physical conditions in such a region with high spatial resolution. We used the far infrared integral-field spectrometer, FIFI-LS, on-board the airborne observatory SOFIA to study the atomic and molecular gas in the Orion Nebula at medium spectral resolution.

The large maps obtained with FIFI-LS cover the nebula from the BN/KL-object to the bar in several fine structure lines. They allow us to study the conditions of the photon-dominated region and the interface to the molecular cloud with unprecedented detail.

Another investigation targeted the molecular gas in the BN/KL region of the Orion Nebula, which is stirred up by a violent explosion about 500 years ago. The explosion drives a wide angled molecular outflow. We present maps of several high-J CO observations, allowing us to analyze the heated molecular gas.

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References

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De Buizer, J. M., Morris, M. R., Becklin, E. E., Zinnecker, H., Herter, T. L., Adams, J. D., Shuping, R. Y., & Vacca, W. D. 2012, ApJ, 749, L23
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Goicoechea, J. R. et al. 2015b, ArXiv e-prints
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The Orion Nebula in the Far-Infrared: High-J CO and fine-structure lines mapped by FIFI-LS/SOFIA

  • Randolf Klein (a1), Leslie W. Looney (a2), Erin Cox (a2), Christian Fischer (a3), Christof Iserlohe (a3) and Alfred Krabbe (a3)...

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