Chandra observations of M17, the Omega Nebula

L. Townsley, P. Broos, Y. H. Chu, E. Feigelson, G. Garmire, K. Getman, T. Montmerle

Research output: Contribution to journalConference articlepeer-review


We present the first high-spatial-resolution X-ray images and spectra of the Omega Nebula, obtained in a single 40 ksec observation with the Advanced CCD Imaging Spectrometer aboard the Chandra X-ray Observatory in 2002 March. This rich, high-mass star-forming region reveals a complex mix of point sources and diffuse X-ray emission. The OB association is resolved at the arcsecond level into more than 900 sources. Soft diffuse X-ray emission pervades the H II region and is resolved from the point source population. This extended emission is most likely from the fast O-star winds that thermalize and shock the surrounding media.

Original languageEnglish (US)
Pages (from-to)190-193
Number of pages4
JournalRevista Mexicana de Astronomia y Astrofisica: Serie de Conferencias
StatePublished - 2003
EventWinds, Bubbles and Explosions: A Conference to Honor John Dyson - Patzcuaro, Michoacan, Mexico
Duration: Sep 9 2002Sep 13 2002


  • H II regions
  • ISM: bubbles
  • Stars: winds, outflows
  • X-rays: stars

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics


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