Resolving SNR 0540-6944 from LMC X-1 with Chandra

Rosa Murphy Williams; Robert Petre; You Hua Chu; C. H.Rosie Chen

doi:10.1086/312729

Resolving SNR 0540-6944 from LMC X-1 with Chandra

Rosa Murphy Williams, Robert Petre, You Hua Chu, C. H.Rosie Chen

Astronomy

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Abstract

We examine the supernova remnant SNR 0540-697 in the Large Magellanic Cloud (LMC) using data from the Chandra Advanced CCD Imaging Spectrometer. The X-ray emission from this supernova remnant (SNR) had previously been hidden in the bright emission of the nearby X-ray binary LMC X-1; however, new observations with Chandra can finally reveal the SNR's structure and spectrum. We find the SNR to be a thick-shelled structure about 19 pc in diameter, with a brightened northeast region. Spectral results suggest a temperature of 0.31 keV and an X-ray luminosity (0.3-3.0 keV) of 8.4 × 10³³ ergs s^-1. We estimate an age of 12,000-20,000 yr for this SNR, but note that this estimate does not take into account the possibility of cavity expansion or other environmental effects.

Original language	English (US)
Pages (from-to)	L27-L30
Journal	Astrophysical Journal
Volume	536
Issue number	1 PART 2
DOIs	https://doi.org/10.1086/312729
State	Published - Jun 10 2000

Keywords

Galaxies: individual (Large Magellanic Cloud)
Supernova remnants
X-rays: ISM

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/312729

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title = "Resolving SNR 0540-6944 from LMC X-1 with Chandra",

abstract = "We examine the supernova remnant SNR 0540-697 in the Large Magellanic Cloud (LMC) using data from the Chandra Advanced CCD Imaging Spectrometer. The X-ray emission from this supernova remnant (SNR) had previously been hidden in the bright emission of the nearby X-ray binary LMC X-1; however, new observations with Chandra can finally reveal the SNR's structure and spectrum. We find the SNR to be a thick-shelled structure about 19 pc in diameter, with a brightened northeast region. Spectral results suggest a temperature of 0.31 keV and an X-ray luminosity (0.3-3.0 keV) of 8.4 × 1033 ergs s-1. We estimate an age of 12,000-20,000 yr for this SNR, but note that this estimate does not take into account the possibility of cavity expansion or other environmental effects.",

keywords = "Galaxies: individual (Large Magellanic Cloud), Supernova remnants, X-rays: ISM",

author = "Williams, {Rosa Murphy} and Robert Petre and Chu, {You Hua} and Chen, {C. H.Rosie}",

note = "Funding Information: The authors thank Eric Schlegel for his helpful comments as referee, as well as the CXC team for their work in making the data and analysis tools available. We acknowledge the support of the National Research Council (R. M. W.) and NASA ADP grant NAG5-7003 (R. M. W. and Y.-H. C.).",

year = "2000",

month = jun,

day = "10",

doi = "10.1086/312729",

language = "English (US)",

volume = "536",

pages = "L27--L30",

journal = "Astrophysical Journal",

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publisher = "American Astronomical Society",

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TY - JOUR

T1 - Resolving SNR 0540-6944 from LMC X-1 with Chandra

AU - Williams, Rosa Murphy

AU - Petre, Robert

AU - Chu, You Hua

AU - Chen, C. H.Rosie

N1 - Funding Information: The authors thank Eric Schlegel for his helpful comments as referee, as well as the CXC team for their work in making the data and analysis tools available. We acknowledge the support of the National Research Council (R. M. W.) and NASA ADP grant NAG5-7003 (R. M. W. and Y.-H. C.).

PY - 2000/6/10

Y1 - 2000/6/10

N2 - We examine the supernova remnant SNR 0540-697 in the Large Magellanic Cloud (LMC) using data from the Chandra Advanced CCD Imaging Spectrometer. The X-ray emission from this supernova remnant (SNR) had previously been hidden in the bright emission of the nearby X-ray binary LMC X-1; however, new observations with Chandra can finally reveal the SNR's structure and spectrum. We find the SNR to be a thick-shelled structure about 19 pc in diameter, with a brightened northeast region. Spectral results suggest a temperature of 0.31 keV and an X-ray luminosity (0.3-3.0 keV) of 8.4 × 1033 ergs s-1. We estimate an age of 12,000-20,000 yr for this SNR, but note that this estimate does not take into account the possibility of cavity expansion or other environmental effects.

AB - We examine the supernova remnant SNR 0540-697 in the Large Magellanic Cloud (LMC) using data from the Chandra Advanced CCD Imaging Spectrometer. The X-ray emission from this supernova remnant (SNR) had previously been hidden in the bright emission of the nearby X-ray binary LMC X-1; however, new observations with Chandra can finally reveal the SNR's structure and spectrum. We find the SNR to be a thick-shelled structure about 19 pc in diameter, with a brightened northeast region. Spectral results suggest a temperature of 0.31 keV and an X-ray luminosity (0.3-3.0 keV) of 8.4 × 1033 ergs s-1. We estimate an age of 12,000-20,000 yr for this SNR, but note that this estimate does not take into account the possibility of cavity expansion or other environmental effects.

KW - Galaxies: individual (Large Magellanic Cloud)

KW - Supernova remnants

KW - X-rays: ISM

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SP - L27-L30

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1 PART 2

ER -

Resolving SNR 0540-6944 from LMC X-1 with Chandra

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