A Chandra ACIS study of 30 Doradus. I. Superbubbles and supernova remnants

Leisa K. Townsley, Patrick Sean Broos, Eric Feigelson, Bernhard R. Brandi, You Hua Chu, Gordon P. Garmire, George Pavlov

Research output: Contribution to journalArticle

64 Citations (Scopus)

Abstract

We present an X-ray tour of diffuse emission in the 30 Doradus star-forming complex in the Large Magellanic Cloud using high spatial resolution X-ray images and spatially resolved spectra obtained with the Advanced CCD Imaging Spectrometer on board the Chandra X-Ray Observatory. The dominant X-ray feature of the 30 Doradus nebula is the intricate network of diffuse emission generated by interacting stellar winds and supernovae working together to create vast superbubbles filled with hot plasma. We construct maps of the region showing variations in plasma temperature (T = 3-9 million degrees), absorption [N H = (1-6) × 10 21 cm -2], and absorption-corrected X-ray surface brightness [S X = (3-126) × 10 31 ergs s -1 pc -2]. Enhanced images reveal the pulsar wind nebula in the composite supernova remnant N157B, and the Chandra data show spectral evolution from nonthermal synchrotron emission in the N157B core to a thermal plasma in its outer regions. In a companion paper we show that R136, the central massive star cluster, is resolved at the arcsecond level into almost 100 X-ray sources. Through X-ray studies of 30 Doradus the complete life cycle of such a massive stellar cluster can be revealed.

Original languageEnglish (US)
Pages (from-to)2140-2163
Number of pages24
JournalAstronomical Journal
Volume131
Issue number4
DOIs
StatePublished - Apr 1 2006

Fingerprint

supernova remnants
x rays
nebulae
plasma
thermal plasmas
imaging spectrometers
plasma temperature
stellar winds
star clusters
Magellanic clouds
high temperature plasmas
massive stars
pulsars
erg
supernovae
charge coupled devices
observatories
synchrotrons
brightness
spatial resolution

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

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title = "A Chandra ACIS study of 30 Doradus. I. Superbubbles and supernova remnants",
abstract = "We present an X-ray tour of diffuse emission in the 30 Doradus star-forming complex in the Large Magellanic Cloud using high spatial resolution X-ray images and spatially resolved spectra obtained with the Advanced CCD Imaging Spectrometer on board the Chandra X-Ray Observatory. The dominant X-ray feature of the 30 Doradus nebula is the intricate network of diffuse emission generated by interacting stellar winds and supernovae working together to create vast superbubbles filled with hot plasma. We construct maps of the region showing variations in plasma temperature (T = 3-9 million degrees), absorption [N H = (1-6) × 10 21 cm -2], and absorption-corrected X-ray surface brightness [S X = (3-126) × 10 31 ergs s -1 pc -2]. Enhanced images reveal the pulsar wind nebula in the composite supernova remnant N157B, and the Chandra data show spectral evolution from nonthermal synchrotron emission in the N157B core to a thermal plasma in its outer regions. In a companion paper we show that R136, the central massive star cluster, is resolved at the arcsecond level into almost 100 X-ray sources. Through X-ray studies of 30 Doradus the complete life cycle of such a massive stellar cluster can be revealed.",
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A Chandra ACIS study of 30 Doradus. I. Superbubbles and supernova remnants. / Townsley, Leisa K.; Broos, Patrick Sean; Feigelson, Eric; Brandi, Bernhard R.; Chu, You Hua; Garmire, Gordon P.; Pavlov, George.

In: Astronomical Journal, Vol. 131, No. 4, 01.04.2006, p. 2140-2163.

Research output: Contribution to journalArticle

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AU - Chu, You Hua

AU - Garmire, Gordon P.

AU - Pavlov, George

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