The structure of high-velocity gas in Orion and the possible role of IRc 9

Research output: Contribution to journalArticlepeer-review

Abstract

The spatial and velocity distribution of shocked gas in the Orion Molecular Cloud has been studied in detail through observations of near-infrared and middle-infrared H2 lines. It is argued that the observed structure requires either an asymmetric outflow or an inhomogeneous ambient molecular cloud, and that the second explanation appears the more likely. The author suggests that mild activity by IRc 9 such as a T Tauri type wind or FU Orionis type flare, would be consistent with its apparent nature and could have caused the necessary density structure in the cloud.
Original languageEnglish
Pages (from-to)205 - 8
JournalAstrophysical Journal
Volume281
Issue number1
StatePublished - Jun 1984

Keywords

  • infrared sources (astronomical)
  • interstellar matter
  • stellar winds

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