AN X-ray upper limit on the presence of a neutron star for the small magellanic cloud supernova remnant 1E0102.2-7219

M. J. Rutkowski, E. M. Schlegel, J. W. Keohane, Rogier Windhorst

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

We present Chandra X-ray Observatory archival observations of the supernova remnant 1E0102.2-7219, a young oxygen-rich remnant in the Small Magellanic Cloud. Combining 28 ObsIDs for 324ks of total exposure time, we present an Advanced CCD Imaging Spectrometer image with an unprecedented signal-to-noise ratio (mean S/N √S ∼ 6; maximum S/N > 35). We search within the remnant, using the source detection software WAVDETECT, for point sources which may indicate a compact object. Despite finding numerous detections of high significance in both broad and narrowband images of the remnant, we are unable to satisfactorily distinguish whether these detections correspond to emission from a compact object. We also present upper limits to the luminosity of an obscured compact stellar object which were derived from an analysis of spectra extracted from the high signal-to-noise image. We are able to further constrain the characteristics of a potential neutron star for this remnant with the results of the analysis presented here, though we cannot confirm the existence of such an object for this remnant.

Original languageEnglish (US)
Pages (from-to)908-918
Number of pages11
JournalAstrophysical Journal
Volume715
Issue number2
DOIs
StatePublished - 2010

Fingerprint

Magellanic clouds
supernova remnants
neutron stars
x rays
imaging spectrometers
signal-to-noise ratio
point sources
point source
narrowband
charge coupled devices
observatories
signal to noise ratios
spectrometer
observatory
luminosity
computer programs
software
oxygen
detection
analysis

Keywords

  • Stars: neutron
  • Supernovae: general
  • Supernovae: individual (1E0102.2-7219)
  • X-rays: individual (SNR 1E0102.2-7219)

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

AN X-ray upper limit on the presence of a neutron star for the small magellanic cloud supernova remnant 1E0102.2-7219. / Rutkowski, M. J.; Schlegel, E. M.; Keohane, J. W.; Windhorst, Rogier.

In: Astrophysical Journal, Vol. 715, No. 2, 2010, p. 908-918.

Research output: Contribution to journalArticle

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