The X-ray shadow of the high-latitude molecular cloud MBM 12
ROSAT XRT/PSPC observations show a deep shadow cast by the high-latitude molecular cloud MBM 12 in the 3/4 keV diffuse background. Modeling of the shadow implies that less than 20 percent of the typical high-latitude 3/4 keV diffuse background intensity is emitted in front of the cloud (D = 60-70 pc...
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| Veröffentlicht in: | The Astrophysical journal 1993-05, Vol.409 (1), p.L21-L24 |
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| container_end_page | L24 |
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| container_issue | 1 |
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| container_title | The Astrophysical journal |
| container_volume | 409 |
| creator | Snowden, S. L. Mccammon, D. Verter, F. |
| description | ROSAT XRT/PSPC observations show a deep shadow cast by the high-latitude molecular cloud MBM 12 in the 3/4 keV diffuse background. Modeling of the shadow implies that less than 20 percent of the typical high-latitude 3/4 keV diffuse background intensity is emitted in front of the cloud (D = 60-70 pc). A weaker shadow consistent with the lower optical depth at higher energies was observed in the 1.5 keV band. Since little shadowing was seen in the 1/4 keV band, this observation places strong constraints on the amount of 0.5-2 keV emission that is intermixed with the source of the observed 1/4 keV flux. |
| doi_str_mv | 10.1086/186850 |
| format | Article |
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L.</creatorcontrib><creatorcontrib>Mccammon, D.</creatorcontrib><creatorcontrib>Verter, F.</creatorcontrib><title>The X-ray shadow of the high-latitude molecular cloud MBM 12</title><title>The Astrophysical journal</title><description>ROSAT XRT/PSPC observations show a deep shadow cast by the high-latitude molecular cloud MBM 12 in the 3/4 keV diffuse background. Modeling of the shadow implies that less than 20 percent of the typical high-latitude 3/4 keV diffuse background intensity is emitted in front of the cloud (D = 60-70 pc). A weaker shadow consistent with the lower optical depth at higher energies was observed in the 1.5 keV band. 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Galactic and extragalactic objects and systems. The universe</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Snowden, S. L.</creatorcontrib><creatorcontrib>Mccammon, D.</creatorcontrib><creatorcontrib>Verter, F.</creatorcontrib><collection>NASA Scientific and Technical Information</collection><collection>NASA Technical Reports Server</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>The Astrophysical journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Snowden, S. L.</au><au>Mccammon, D.</au><au>Verter, F.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>The X-ray shadow of the high-latitude molecular cloud MBM 12</atitle><jtitle>The Astrophysical journal</jtitle><date>1993-05-20</date><risdate>1993</risdate><volume>409</volume><issue>1</issue><spage>L21</spage><epage>L24</epage><pages>L21-L24</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><coden>ASJOAB</coden><abstract>ROSAT XRT/PSPC observations show a deep shadow cast by the high-latitude molecular cloud MBM 12 in the 3/4 keV diffuse background. Modeling of the shadow implies that less than 20 percent of the typical high-latitude 3/4 keV diffuse background intensity is emitted in front of the cloud (D = 60-70 pc). A weaker shadow consistent with the lower optical depth at higher energies was observed in the 1.5 keV band. 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| fulltext | fulltext |
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| ispartof | The Astrophysical journal, 1993-05, Vol.409 (1), p.L21-L24 |
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| language | eng |
| recordid | cdi_crossref_primary_10_1086_186850 |
| source | NASA Technical Reports Server; Alma/SFX Local Collection |
| subjects | Astronomy Astrophysics Earth, ocean, space Exact sciences and technology Interstellar medium (ism) and nebulae in milky way Molecular clouds, h2 clouds, dense clouds, and dark clouds Stellar systems. Galactic and extragalactic objects and systems. The universe |
| title | The X-ray shadow of the high-latitude molecular cloud MBM 12 |
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