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Million-Degree Plasma Pervading the Extended Orion Nebula

Güdel, Manuel and Briggs, Kevin R. and Montmerle, Thierry and Audard, Marc and Rebull, Luisa and Skinner, Stephen L. (2008) Million-Degree Plasma Pervading the Extended Orion Nebula. Science, 319 (5861). pp. 309-312. ISSN 0036-8075. doi:10.1126/science.1149926.

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Most stars form as members of large associations within dense, very cold (10 to 100 kelvin) molecular clouds. The nearby giant molecular cloud in Orion hosts several thousand stars of ages less than a few million years, many of which are located in or around the famous Orion Nebula, a prominent gas structure illuminated and ionized by a small group of massive stars (the Trapezium). We present x-ray observations obtained with the X-ray Multi-Mirror satellite XMM-Newton, revealing that a hot plasma with a temperature of 1.7 to 2.1 million kelvin pervades the southwest extension of the nebula. The plasma flows into the adjacent interstellar medium. This x-ray outflow phenomenon must be widespread throughout our Galaxy.

Item Type:Article
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URLURL TypeDescription Online Material
Rebull, Luisa0000-0001-6381-515X
Additional Information:© 2008 American Association for the Advancement of Science. Received 30 August 2007; accepted 15 November 2007. Published online 29 November 2007. We thank D. Malin for providing the optical image of the Orion Nebula taken with the UK Schmidt telescope and granting permission to use it and R. Subrahmanyan and the American Astronomical Society for granting permission to reproduce the radio panel in Fig. 4D. This research is based on observations obtained with XMM-Newton, a European Space Agency (ESA) science mission with instruments and contributions directly funded by ESA member states and the United States (NASA). M.A. acknowledges support from a Swiss National Science Foundation Professorship (PP002-110504), and S.S. from NASA grant NNG05GE69G.
Group:Infrared Processing and Analysis Center (IPAC)
Funding AgencyGrant Number
Swiss National Science Foundation (SNSF)PP002-110504
Issue or Number:5861
Record Number:CaltechAUTHORS:20141112-080741317
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:51625
Deposited By: Tony Diaz
Deposited On:12 Nov 2014 16:19
Last Modified:10 Nov 2021 19:13

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