FAR-ULTRAVIOLET OBSERVATION OF THE AQUILA RIFT WITH FIMS / SPEAR
We present the results of far ultraviolet (FUV) observations of the broad region around the Aquila Rift including the Galactic plane. As compared with various wavelength data sets, dust scattering is found to be the major origin of the diffuse FUV continuum in this region. The FUV intensity clearly...
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| creator | Park, S-j Min, K-W Seon, K-I Han, W Lee, D-H Edelstein, J |
| description | We present the results of far ultraviolet (FUV) observations of the broad region around the Aquila Rift including the Galactic plane. As compared with various wavelength data sets, dust scattering is found to be the major origin of the diffuse FUV continuum in this region. The FUV intensity clearly correlates with the dust extinction level for E(B - V) < 0.2, while this correlation disappears for E(B - V) > 0.2 due to heavy dust extinction combined with the effect of nonuniform interstellar radiation fields. The FUV intensity also correlates well with H alpha intensity, implying that at least some fraction of the observed H alpha emission could be the dust-scattered light of H alpha photons originating elsewhere in the Galaxy. Most of the Aquila Rift region is seen devoid of diffuse FUV continuum due to heavy extinction while strong emission is observed in the surrounding regions. Molecular hydrogen fluorescent emission lines are clearly seen in the spectrum of "Aquila-Serpens," while "Aquila-East" does not show any apparent line features. CO emission intensity is also found to be higher in the "Aquila-Serpens" region than in the "Aquila-East" region. In this regard, we note that regions of star formation have been found in "Aquila-Serpens" but not in "Aquila-East". |
| doi_str_mv | 10.1088/0004-637X/754/1/10 |
| format | Article |
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As compared with various wavelength data sets, dust scattering is found to be the major origin of the diffuse FUV continuum in this region. The FUV intensity clearly correlates with the dust extinction level for E(B - V) < 0.2, while this correlation disappears for E(B - V) > 0.2 due to heavy dust extinction combined with the effect of nonuniform interstellar radiation fields. The FUV intensity also correlates well with H alpha intensity, implying that at least some fraction of the observed H alpha emission could be the dust-scattered light of H alpha photons originating elsewhere in the Galaxy. Most of the Aquila Rift region is seen devoid of diffuse FUV continuum due to heavy extinction while strong emission is observed in the surrounding regions. Molecular hydrogen fluorescent emission lines are clearly seen in the spectrum of "Aquila-Serpens," while "Aquila-East" does not show any apparent line features. CO emission intensity is also found to be higher in the "Aquila-Serpens" region than in the "Aquila-East" region. 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As compared with various wavelength data sets, dust scattering is found to be the major origin of the diffuse FUV continuum in this region. The FUV intensity clearly correlates with the dust extinction level for E(B - V) < 0.2, while this correlation disappears for E(B - V) > 0.2 due to heavy dust extinction combined with the effect of nonuniform interstellar radiation fields. The FUV intensity also correlates well with H alpha intensity, implying that at least some fraction of the observed H alpha emission could be the dust-scattered light of H alpha photons originating elsewhere in the Galaxy. Most of the Aquila Rift region is seen devoid of diffuse FUV continuum due to heavy extinction while strong emission is observed in the surrounding regions. Molecular hydrogen fluorescent emission lines are clearly seen in the spectrum of "Aquila-Serpens," while "Aquila-East" does not show any apparent line features. CO emission intensity is also found to be higher in the "Aquila-Serpens" region than in the "Aquila-East" region. In this regard, we note that regions of star formation have been found in "Aquila-Serpens" but not in "Aquila-East".</description><subject>ASTRONOMY</subject><subject>ASTROPHYSICS</subject><subject>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</subject><subject>CARBON MONOXIDE</subject><subject>Continuums</subject><subject>Correlation</subject><subject>CORRELATIONS</subject><subject>COSMIC DUST</subject><subject>Diffusion</subject><subject>Dust</subject><subject>Emission</subject><subject>Extinction</subject><subject>FAR ULTRAVIOLET RADIATION</subject><subject>FLUORESCENCE</subject><subject>GALAXIES</subject><subject>HYDROGEN</subject><subject>MILKY WAY</subject><subject>Nonuniform</subject><subject>PHOTON EMISSION</subject><subject>SCATTERING</subject><subject>STARS</subject><subject>Ultraviolet</subject><subject>VISIBLE RADIATION</subject><subject>WAVELENGTHS</subject><issn>0004-637X</issn><issn>1538-4357</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNqNkEFPgzAYhhujiXP6Bzw18eIFaftR2t5EA44ERYFNbw2rJc5sY1J28N8LmfHs4cub782T9_AgdEnJDSVS-oSQwAtBvPmCBz71KTlCE8pBegFwcYwmf8ApOnPuc3yZUhN0m0SFN8-qIlqkeRZXOL8r42IRVWn-hPMEV7MYRy_zNItwkSYVfk2rGU7SxxL7uHyOo-IcnTT12tmL35yiMomr-5mX5Q_pfZR5BgLaexJobTgNWcNkIFS4BGGpkqDCGsiypkNlOLHESmmBN2GjwLxzpozlkhmYoqvDauv6lXZm1VvzYdrt1ppeM0ZAAfCBuj5Qu6792lvX683KGbte11vb7p2mgighQkr-hdJAAhtuitgBNV3rXGcbvetWm7r71pTo0b4ebepRrh7sazqU8AP-P27L</recordid><startdate>20120720</startdate><enddate>20120720</enddate><creator>Park, S-j</creator><creator>Min, K-W</creator><creator>Seon, K-I</creator><creator>Han, W</creator><creator>Lee, D-H</creator><creator>Edelstein, J</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>7TG</scope><scope>KL.</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>20120720</creationdate><title>FAR-ULTRAVIOLET OBSERVATION OF THE AQUILA RIFT WITH FIMS / SPEAR</title><author>Park, S-j ; Min, K-W ; Seon, K-I ; Han, W ; Lee, D-H ; Edelstein, J</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c341t-831ac5162f284796b37e198396a30ba1796c50e0e88e35f6f93cd529ce582c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>ASTRONOMY</topic><topic>ASTROPHYSICS</topic><topic>ASTROPHYSICS, COSMOLOGY AND ASTRONOMY</topic><topic>CARBON MONOXIDE</topic><topic>Continuums</topic><topic>Correlation</topic><topic>CORRELATIONS</topic><topic>COSMIC DUST</topic><topic>Diffusion</topic><topic>Dust</topic><topic>Emission</topic><topic>Extinction</topic><topic>FAR ULTRAVIOLET RADIATION</topic><topic>FLUORESCENCE</topic><topic>GALAXIES</topic><topic>HYDROGEN</topic><topic>MILKY WAY</topic><topic>Nonuniform</topic><topic>PHOTON EMISSION</topic><topic>SCATTERING</topic><topic>STARS</topic><topic>Ultraviolet</topic><topic>VISIBLE RADIATION</topic><topic>WAVELENGTHS</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Park, S-j</creatorcontrib><creatorcontrib>Min, K-W</creatorcontrib><creatorcontrib>Seon, K-I</creatorcontrib><creatorcontrib>Han, W</creatorcontrib><creatorcontrib>Lee, D-H</creatorcontrib><creatorcontrib>Edelstein, J</creatorcontrib><collection>CrossRef</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>OSTI.GOV</collection><jtitle>The Astrophysical journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Park, S-j</au><au>Min, K-W</au><au>Seon, K-I</au><au>Han, W</au><au>Lee, D-H</au><au>Edelstein, J</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>FAR-ULTRAVIOLET OBSERVATION OF THE AQUILA RIFT WITH FIMS / SPEAR</atitle><jtitle>The Astrophysical journal</jtitle><date>2012-07-20</date><risdate>2012</risdate><volume>754</volume><issue>1</issue><spage>1</spage><epage>8</epage><pages>1-8</pages><issn>0004-637X</issn><eissn>1538-4357</eissn><abstract>We present the results of far ultraviolet (FUV) observations of the broad region around the Aquila Rift including the Galactic plane. As compared with various wavelength data sets, dust scattering is found to be the major origin of the diffuse FUV continuum in this region. The FUV intensity clearly correlates with the dust extinction level for E(B - V) < 0.2, while this correlation disappears for E(B - V) > 0.2 due to heavy dust extinction combined with the effect of nonuniform interstellar radiation fields. The FUV intensity also correlates well with H alpha intensity, implying that at least some fraction of the observed H alpha emission could be the dust-scattered light of H alpha photons originating elsewhere in the Galaxy. Most of the Aquila Rift region is seen devoid of diffuse FUV continuum due to heavy extinction while strong emission is observed in the surrounding regions. Molecular hydrogen fluorescent emission lines are clearly seen in the spectrum of "Aquila-Serpens," while "Aquila-East" does not show any apparent line features. CO emission intensity is also found to be higher in the "Aquila-Serpens" region than in the "Aquila-East" region. In this regard, we note that regions of star formation have been found in "Aquila-Serpens" but not in "Aquila-East".</abstract><cop>United States</cop><doi>10.1088/0004-637X/754/1/10</doi><tpages>8</tpages></addata></record> |
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| subjects | ASTRONOMY ASTROPHYSICS ASTROPHYSICS, COSMOLOGY AND ASTRONOMY CARBON MONOXIDE Continuums Correlation CORRELATIONS COSMIC DUST Diffusion Dust Emission Extinction FAR ULTRAVIOLET RADIATION FLUORESCENCE GALAXIES HYDROGEN MILKY WAY Nonuniform PHOTON EMISSION SCATTERING STARS Ultraviolet VISIBLE RADIATION WAVELENGTHS |
| title | FAR-ULTRAVIOLET OBSERVATION OF THE AQUILA RIFT WITH FIMS / SPEAR |
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