AN X-RAY UPPER LIMIT ON THE PRESENCE OF A NEUTRON STAR FOR THE SMALL MAGELLANIC CLOUD SUPERNOVA REMNANT 1E0102.2-7219
- 1. School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287 (United States)
- 2. Department of Physics and Astronomy, University of Texas-San Antonio, San Antonio, TX 78249 (United States)
- 3. Department of Physics and Astronomy, Hampden-Sydney College, Hampden-Sydney, VA 23943 (United States)
Description
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 324 ks 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.
Availability note (English)
Available from http://dx.doi.org/10.1088/0004-637X/715/2/908Additional details
Identifiers
Publishing Information
- Journal Title
- Astrophysical Journal
- Journal Volume
- 715
- Journal Issue
- 2
- Journal Page Range
- p. 908-918
- ISSN
- 0004-637X
- CODEN
- ASJOAB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 42045831
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Descriptors DEI
- CHARGE-COUPLED DEVICES; LUMINOSITY; MAGELLANIC CLOUDS; NEUTRON STARS; NEUTRONS; OXYGEN; POINT SOURCES; SIGNAL-TO-NOISE RATIO; SPECTROMETERS; SUPERNOVA REMNANTS; SUPERNOVAE; X RADIATION
- Descriptors DEC
- BARYONS; BINARY STARS; COSMIC RADIO SOURCES; DIMENSIONLESS NUMBERS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ELEMENTS; ERUPTIVE VARIABLE STARS; FERMIONS; GALAXIES; HADRONS; IONIZING RADIATIONS; MEASURING INSTRUMENTS; NONMETALS; NUCLEONS; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; RADIATION SOURCES; RADIATIONS; SEMICONDUCTOR DEVICES; STARS; VARIABLE STARS