The detection of X-rays from the hot interstellar medium of the Large Magellanic Cloud
A comprehensive reanalysis is presented of the Einstein IPC data base on the LMC, and a number of new algorithms are used to improve the reliability of the point source detection in this crowded region and to produce the first large-scale map of diffuse emission free from the effects of solar scatte...
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| Veröffentlicht in: | The Astrophysical journal 1991-06, Vol.374 (2), p.475-495 |
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| container_end_page | 495 |
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| container_issue | 2 |
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| container_title | The Astrophysical journal |
| container_volume | 374 |
| creator | Wang, Q. Hamilton, T. Helfand, D. J. Wu, X. |
| description | A comprehensive reanalysis is presented of the Einstein IPC data base on the LMC, and a number of new algorithms are used to improve the reliability of the point source detection in this crowded region and to produce the first large-scale map of diffuse emission free from the effects of solar scattered X-rays and cosmic-ray particles. Algorithms described in detail include a technique to decontaminate fields containing solar scattered flux, a mechanism for obtaining a spectrum-weighted vignetting function, and a source excision and smoothing algorithm which results in a diffuse map of uniform statistical quality. A catalog of discrete X-rays sources in the direction of the LMC is presented which contains 33 new sources and eliminates a number of spurious and/or marginal directions from previous lists. A possible detection of the long-sought shadowing effect on the cosmic X-ray background produced by cold LMC gas is reported. |
| doi_str_mv | 10.1086/170137 |
| format | Article |
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A catalog of discrete X-rays sources in the direction of the LMC is presented which contains 33 new sources and eliminates a number of spurious and/or marginal directions from previous lists. A possible detection of the long-sought shadowing effect on the cosmic X-ray background produced by cold LMC gas is reported.</description><subject>640105 - Astrophysics & Cosmology- Galaxies</subject><subject>ALGORITHMS</subject><subject>Astronomy</subject><subject>BACKGROUND RADIATION</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>COSMIC GASES</subject><subject>COSMIC RAY SOURCES</subject><subject>COSMIC X-RAY SOURCES</subject><subject>DOCUMENT TYPES</subject><subject>Earth, ocean, space</subject><subject>ELECTROMAGNETIC RADIATION</subject><subject>Exact sciences and technology</subject><subject>FLUIDS</subject><subject>GALAXIES</subject><subject>GALAXY NUCLEI</subject><subject>GASES</subject><subject>INTERSTELLAR SPACE</subject><subject>IONIZING RADIATIONS</subject><subject>MAGELLANIC CLOUDS</subject><subject>MATHEMATICAL LOGIC</subject><subject>Normal galaxies. 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J.</au><au>Wu, X.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The detection of X-rays from the hot interstellar medium of the Large Magellanic Cloud</atitle><jtitle>The Astrophysical journal</jtitle><date>1991-06-20</date><risdate>1991</risdate><volume>374</volume><issue>2</issue><spage>475</spage><epage>495</epage><pages>475-495</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><coden>ASJOAB</coden><abstract>A comprehensive reanalysis is presented of the Einstein IPC data base on the LMC, and a number of new algorithms are used to improve the reliability of the point source detection in this crowded region and to produce the first large-scale map of diffuse emission free from the effects of solar scattered X-rays and cosmic-ray particles. Algorithms described in detail include a technique to decontaminate fields containing solar scattered flux, a mechanism for obtaining a spectrum-weighted vignetting function, and a source excision and smoothing algorithm which results in a diffuse map of uniform statistical quality. A catalog of discrete X-rays sources in the direction of the LMC is presented which contains 33 new sources and eliminates a number of spurious and/or marginal directions from previous lists. A possible detection of the long-sought shadowing effect on the cosmic X-ray background produced by cold LMC gas is reported.</abstract><cop>Legacy CDMS</cop><pub>University of Chicago Press</pub><doi>10.1086/170137</doi><tpages>21</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0004-637X |
| ispartof | The Astrophysical journal, 1991-06, Vol.374 (2), p.475-495 |
| issn | 0004-637X 1538-4357 |
| language | eng |
| recordid | cdi_osti_scitechconnect_5193220 |
| source | NASA Technical Reports Server; Alma/SFX Local Collection |
| subjects | 640105 - Astrophysics & Cosmology- Galaxies ALGORITHMS Astronomy BACKGROUND RADIATION CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS COSMIC GASES COSMIC RAY SOURCES COSMIC X-RAY SOURCES DOCUMENT TYPES Earth, ocean, space ELECTROMAGNETIC RADIATION Exact sciences and technology FLUIDS GALAXIES GALAXY NUCLEI GASES INTERSTELLAR SPACE IONIZING RADIATIONS MAGELLANIC CLOUDS MATHEMATICAL LOGIC Normal galaxies. Extragalactic objects and systems (by type) POINT SOURCES RADIATION SOURCES RADIATIONS SPACE Space Radiation Stellar systems. Galactic and extragalactic objects and systems. The universe X RADIATION |
| title | The detection of X-rays from the hot interstellar medium of the Large Magellanic Cloud |
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