An analysis of the FIR/RADIO continuum correlation in the small Magellanic cloud
The local correlation between far-infrared (FIR) emission and radio-continuum (RC) emission for the Small Magellanic Cloud (SMC) is investigated over scales from 3 kpc to 0.01 kpc. Here, we report good FIR/RC correlation down to ∼15 pc. The reciprocal slope of the FIR/RC emission correlation (RC/FIR...
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| Veröffentlicht in: | Astrophysics and space science 2013, Vol.343 (1), p.301-317 |
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| creator | Leverenz, Howard Filipović, Miroslav D. |
| description | The local correlation between far-infrared (FIR) emission and radio-continuum (RC) emission for the Small Magellanic Cloud (SMC) is investigated over scales from 3 kpc to 0.01 kpc. Here, we report good FIR/RC correlation down to ∼15 pc. The reciprocal slope of the FIR/RC emission correlation (RC/FIR) in the SMC is shown to be greatest in the most active star forming regions with a power law slope of ∼1.14 indicating that the RC emission increases faster than the FIR emission. The slope of the other regions and the SMC are much flatter and in the range of 0.63–0.85. The slopes tend to follow the thermal fractions of the regions which range from 0.5 to 0.95. The thermal fraction of the RC emission alone can provide the expected FIR/RC correlation. The results are consistent with a common source for ultraviolet (UV) photons heating dust and Cosmic Ray electrons (CRe
−
s) diffusing away from the star forming regions. Since the CRe
−
s appear to escape the SMC so readily, the results here may not provide support for coupling between the local gas density and the magnetic field intensity. |
| doi_str_mv | 10.1007/s10509-012-1234-z |
| format | Article |
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−
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−
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−
s) diffusing away from the star forming regions. Since the CRe
−
s appear to escape the SMC so readily, the results here may not provide support for coupling between the local gas density and the magnetic field intensity.</description><subject>Astrobiology</subject><subject>Astronomy</subject><subject>Astrophysics</subject><subject>Astrophysics and Astroparticles</subject><subject>Cosmic rays</subject><subject>Cosmology</subject><subject>Emissions</subject><subject>Magnetic fields</subject><subject>Observations and Techniques</subject><subject>Original Article</subject><subject>Physics</subject><subject>Physics and Astronomy</subject><subject>Space Exploration and Astronautics</subject><subject>Space Sciences (including Extraterrestrial Physics</subject><subject>Stars & galaxies</subject><issn>0004-640X</issn><issn>1572-946X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNp1kEFLwzAUx4MoOKcfwFvBi5e699IsXY5jOh1MJkNht5Cl6exI25m0h-3Tm60eRPCUF_j9_7z3I-QW4QEB0oFHGIKIAWmMNGHx4Yz0cJjSWDC-Oic9AGAxZ7C6JFfeb8NXcJH2yNu4ilSl7N4XPqrzqPk00XS2HCzHj7NFpOuqKaq2LcPknLGqKeoqKqoT5ktlbfSqNsZaVRU60rZus2tykSvrzc3P2ycf06f3yUs8XzzPJuN5rBMmmpgJhpTnQ4NJKigqrTKWQC4UJJiJNQrNTDKCUaBphoCZXnPFFANlhEGVJ31y3_XuXP3VGt_IsvD6tIqpWy-RCuQgQn1A7_6g27p14egjxVNKUz6CQGFHaVd770wud64oldtLBHl0LDvHMjiWR8fyEDK0y_jAVhvjfjX_G_oGdeB9rw</recordid><startdate>2013</startdate><enddate>2013</enddate><creator>Leverenz, Howard</creator><creator>Filipović, Miroslav D.</creator><general>Springer Netherlands</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7TG</scope><scope>7XB</scope><scope>88I</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>GNUQQ</scope><scope>H8D</scope><scope>HCIFZ</scope><scope>KL.</scope><scope>L7M</scope><scope>M2P</scope><scope>P5Z</scope><scope>P62</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope></search><sort><creationdate>2013</creationdate><title>An analysis of the FIR/RADIO continuum correlation in the small Magellanic cloud</title><author>Leverenz, Howard ; Filipović, Miroslav D.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c349t-494126f5e137921acad430f9a031d9b19c4e3808c342d101dcb6a4a40ae9e1af3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Astrobiology</topic><topic>Astronomy</topic><topic>Astrophysics</topic><topic>Astrophysics and Astroparticles</topic><topic>Cosmic rays</topic><topic>Cosmology</topic><topic>Emissions</topic><topic>Magnetic fields</topic><topic>Observations and Techniques</topic><topic>Original Article</topic><topic>Physics</topic><topic>Physics and Astronomy</topic><topic>Space Exploration and Astronautics</topic><topic>Space Sciences (including Extraterrestrial Physics</topic><topic>Stars & galaxies</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Leverenz, Howard</creatorcontrib><creatorcontrib>Filipović, Miroslav D.</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Meteorological & Geoastrophysical Abstracts</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Science Database (Alumni Edition)</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>Advanced Technologies & Aerospace Collection</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>ProQuest Central Student</collection><collection>Aerospace Database</collection><collection>SciTech Premium Collection</collection><collection>Meteorological & Geoastrophysical Abstracts - Academic</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Science Database</collection><collection>Advanced Technologies & Aerospace Database</collection><collection>ProQuest Advanced Technologies & Aerospace Collection</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central Basic</collection><jtitle>Astrophysics and space science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Leverenz, Howard</au><au>Filipović, Miroslav D.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>An analysis of the FIR/RADIO continuum correlation in the small Magellanic cloud</atitle><jtitle>Astrophysics and space science</jtitle><stitle>Astrophys Space Sci</stitle><date>2013</date><risdate>2013</risdate><volume>343</volume><issue>1</issue><spage>301</spage><epage>317</epage><pages>301-317</pages><issn>0004-640X</issn><eissn>1572-946X</eissn><abstract>The local correlation between far-infrared (FIR) emission and radio-continuum (RC) emission for the Small Magellanic Cloud (SMC) is investigated over scales from 3 kpc to 0.01 kpc. Here, we report good FIR/RC correlation down to ∼15 pc. The reciprocal slope of the FIR/RC emission correlation (RC/FIR) in the SMC is shown to be greatest in the most active star forming regions with a power law slope of ∼1.14 indicating that the RC emission increases faster than the FIR emission. The slope of the other regions and the SMC are much flatter and in the range of 0.63–0.85. The slopes tend to follow the thermal fractions of the regions which range from 0.5 to 0.95. The thermal fraction of the RC emission alone can provide the expected FIR/RC correlation. The results are consistent with a common source for ultraviolet (UV) photons heating dust and Cosmic Ray electrons (CRe
−
s) diffusing away from the star forming regions. Since the CRe
−
s appear to escape the SMC so readily, the results here may not provide support for coupling between the local gas density and the magnetic field intensity.</abstract><cop>Dordrecht</cop><pub>Springer Netherlands</pub><doi>10.1007/s10509-012-1234-z</doi><tpages>17</tpages></addata></record> |
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| subjects | Astrobiology Astronomy Astrophysics Astrophysics and Astroparticles Cosmic rays Cosmology Emissions Magnetic fields Observations and Techniques Original Article Physics Physics and Astronomy Space Exploration and Astronautics Space Sciences (including Extraterrestrial Physics Stars & galaxies |
| title | An analysis of the FIR/RADIO continuum correlation in the small Magellanic cloud |
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