AustralieFrV1, Main, Exploration, bibRecord, 006E11

A 100 pc ELLIPTICAL AND TWISTED RING OF COLD AND DENSE MOLECULAR CLOUDS REVEALED BY HERSCHEL AROUND THE GALACTIC CENTER

Identifieur interne : 006E11 ( Main/Exploration ); précédent : 006E10; suivant : 006E12

A 100 pc ELLIPTICAL AND TWISTED RING OF COLD AND DENSE MOLECULAR CLOUDS REVEALED BY HERSCHEL AROUND THE GALACTIC CENTER

Auteurs : S. Molinari [Italie] ; J. Bally [États-Unis] ; A. Noriega-Crespo [États-Unis] ; M. Compiegne [États-Unis] ; J. P. Bernard [France] ; D. Paradis [France] ; P. Martin [Canada] ; L. Testi [Allemagne, Italie] ; M. Barlow [Royaume-Uni] ; T. Moore [Royaume-Uni] ; R. Plume [Canada] ; B. Swinyard [Royaume-Uni] ; A. Zavagno [France] ; L. Calzoletti [Italie] ; A. M. Di Giorgio [Italie] ; D. Elia [Italie] ; F. Faustini [Italie] ; P. Natoli [Italie] ; M. Pestalozzi [Italie] ; S. Pezzuto [Italie] ; F. Piacentini [Italie] ; G. Polenta [Italie] ; D. Polychroni [Italie] ; E. Schisano [Italie] ; A. Traficante [Italie] ; M. Veneziani [Italie] ; C. Battersby [États-Unis] ; M. Burton [Australie] ; S. Carey [États-Unis] ; Y. Fukui [Japon] ; J. Z. Li [République populaire de Chine] ; S. D. Lord [États-Unis] ; L. Morgan [Royaume-Uni] ; F. Motte [France] ; F. Schuller [Allemagne] ; G. S. Stringfellow [États-Unis] ; J. C. Tan [États-Unis] ; M. A. Thompson [Royaume-Uni] ; D. Ward-Thompson ; G. White [Royaume-Uni] ; G. Umana

Source :

The Astrophysical journal [ 0004-637X ] ; 2011.

RBID : Pascal:11-0321674

Descripteurs français

Pascal (Inist)
- Nuage dense, Nuage moléculaire, Centre galactique, Voie lactée, Modèle, Forme elliptique, Barre galactique, Orbite, Morphologie, Aplatissement, Galaxies, Formation stellaire.

English descriptors

KwdEn :
- Dense cloud, Elliptic shape, Flattening, Galactic bar, Galactic centers, Galaxies, Milky Way, Models, Molecular clouds, Morphology, Orbits, Star formation.

Abstract

Thermal images of cold dust in the Central Molecular Zone of the Milky Way, obtained with the far-infrared cameras on board the Herschel satellite, reveal a ˜3 x 10⁷ M_◦. ring of dense and cold clouds orbiting the Galactic center. Using a simple toy model, an elliptical shape having semi-major axes of 100 and 60 pc is deduced. The major axis of this 100 pc ring is inclined by about 40° with respect to the plane of the sky and is oriented perpendicular to the major axes of the Galactic Bar. The 100 pc ring appears to trace the system of stable x₂ orbits predicted for the barred Galactic potential. Sgr A* is displaced with respect to the geometrical center of symmetry of the ring. The ring is twisted and its morphology suggests a flattening ratio of 2 for the Galactic potential, which is in good agreement with the bulge flattening ratio derived from the 2MASS data.

Affiliations:

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Le document en format XML

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<country>Australie</country>
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<affiliation wicri:level="1"><inist:fA14 i1="19"><s1>Department of Astrophysics, Nagoya University</s1>
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<country>Japon</country>
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<affiliation wicri:level="1"><inist:fA14 i1="12"><s1>STFC, Rutherford Appleton Labs</s1>
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<sZ>12 aut.</sZ>
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</author>
<author><name sortKey="Umana, G" sort="Umana, G" uniqKey="Umana G" first="G." last="Umana">G. Umana</name>
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<idno type="inist">11-0321674</idno>
<date when="2011">2011</date>
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<idno type="wicri:Area/Main/Merge">007285</idno>
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">A 100 pc ELLIPTICAL AND TWISTED RING OF COLD AND DENSE MOLECULAR CLOUDS REVEALED BY HERSCHEL AROUND THE GALACTIC CENTER</title>
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</author>
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<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Center for Astrophysics and Space Astronomy, University of Colorado</s1>
<s2>Boulder, CO 80309</s2>
<s3>USA</s3>
<sZ>2 aut.</sZ>
<sZ>27 aut.</sZ>
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<country>États-Unis</country>
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</affiliation>
</author>
<author><name sortKey="Noriega Crespo, A" sort="Noriega Crespo, A" uniqKey="Noriega Crespo A" first="A." last="Noriega-Crespo">A. Noriega-Crespo</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Spitzer Science Center, California Institute of Technology, 1200 E. California B1.</s1>
<s2>Pasadena, CA 91125</s2>
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<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
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</inist:fA14>
<country>États-Unis</country>
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</affiliation>
</author>
<author><name sortKey="Compiegne, M" sort="Compiegne, M" uniqKey="Compiegne M" first="M." last="Compiegne">M. Compiegne</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Spitzer Science Center, California Institute of Technology, 1200 E. California B1.</s1>
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<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
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<country>États-Unis</country>
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</affiliation>
</author>
<author><name sortKey="Bernard, J P" sort="Bernard, J P" uniqKey="Bernard J" first="J. P." last="Bernard">J. P. Bernard</name>
<affiliation wicri:level="1"><inist:fA14 i1="04"><s1>CNRS, IRAP, 9 Av. colonel Roche, BP 44346</s1>
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<country>France</country>
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<affiliation wicri:level="1"><inist:fA14 i1="05"><s1>Université de Toulouse, UPS-OMP, IRAP</s1>
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<sZ>5 aut.</sZ>
</inist:fA14>
<country>France</country>
<wicri:noRegion>31028 Toulouse</wicri:noRegion>
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<affiliation wicri:level="1"><inist:fA14 i1="04"><s1>CNRS, IRAP, 9 Av. colonel Roche, BP 44346</s1>
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<author><name sortKey="Martin, P" sort="Martin, P" uniqKey="Martin P" first="P." last="Martin">P. Martin</name>
<affiliation wicri:level="4"><inist:fA14 i1="06"><s1>Department of Astronomy & Astrophysics, University of Toronto</s1>
<s3>CAN</s3>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>Canada</country>
<placeName><settlement type="city">Toronto</settlement>
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</placeName>
<orgName type="university">Université de Toronto</orgName>
</affiliation>
</author>
<author><name sortKey="Testi, L" sort="Testi, L" uniqKey="Testi L" first="L." last="Testi">L. Testi</name>
<affiliation wicri:level="1"><inist:fA14 i1="07"><s1>European Southern Observatory, Karl Schwarzschild Str. 2</s1>
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<sZ>8 aut.</sZ>
</inist:fA14>
<country>Allemagne</country>
<wicri:noRegion>85748 Garching</wicri:noRegion>
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<sZ>8 aut.</sZ>
</inist:fA14>
<country>Italie</country>
<wicri:noRegion>50125 Firenze</wicri:noRegion>
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</author>
<author><name sortKey="Barlow, M" sort="Barlow, M" uniqKey="Barlow M" first="M." last="Barlow">M. Barlow</name>
<affiliation wicri:level="4"><inist:fA14 i1="09"><s1>Department of Physics and Astronomy, University College London</s1>
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<sZ>9 aut.</sZ>
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</inist:fA14>
<country>Royaume-Uni</country>
<placeName><settlement type="city">Londres</settlement>
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</placeName>
<orgName type="university">University College de Londres</orgName>
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</author>
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<affiliation wicri:level="1"><inist:fA14 i1="10"><s1>Astrophysics Research Institute, Liverpool John Moores University</s1>
<s3>GBR</s3>
<sZ>10 aut.</sZ>
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</inist:fA14>
<country>Royaume-Uni</country>
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</author>
<author><name sortKey="Plume, R" sort="Plume, R" uniqKey="Plume R" first="R." last="Plume">R. Plume</name>
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<s3>CAN</s3>
<sZ>11 aut.</sZ>
</inist:fA14>
<country>Canada</country>
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<author><name sortKey="Swinyard, B" sort="Swinyard, B" uniqKey="Swinyard B" first="B." last="Swinyard">B. Swinyard</name>
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<sZ>9 aut.</sZ>
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</inist:fA14>
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<orgName type="university">University College de Londres</orgName>
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<sZ>12 aut.</sZ>
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</inist:fA14>
<country>Royaume-Uni</country>
<wicri:noRegion>Didcot</wicri:noRegion>
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</author>
<author><name sortKey="Zavagno, A" sort="Zavagno, A" uniqKey="Zavagno A" first="A." last="Zavagno">A. Zavagno</name>
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<sZ>13 aut.</sZ>
</inist:fA14>
<country>France</country>
<placeName><region type="region">Provence-Alpes-Côte d'Azur</region>
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<orgName type="university">Université de Provence</orgName>
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</author>
<author><name sortKey="Calzoletti, L" sort="Calzoletti, L" uniqKey="Calzoletti L" first="L." last="Calzoletti">L. Calzoletti</name>
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<s3>ITA</s3>
<sZ>14 aut.</sZ>
<sZ>17 aut.</sZ>
<sZ>18 aut.</sZ>
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</inist:fA14>
<country>Italie</country>
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</affiliation>
</author>
<author><name sortKey="Di Giorgio, A M" sort="Di Giorgio, A M" uniqKey="Di Giorgio A" first="A. M." last="Di Giorgio">A. M. Di Giorgio</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>INAF-Istituto Fisica Spazio Interplanetario, Via Fosso del Cavaliere 100</s1>
<s2>00133 Roma</s2>
<s3>ITA</s3>
<sZ>1 aut.</sZ>
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</inist:fA14>
<country>Italie</country>
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</placeName>
</affiliation>
</author>
<author><name sortKey="Elia, D" sort="Elia, D" uniqKey="Elia D" first="D." last="Elia">D. Elia</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>INAF-Istituto Fisica Spazio Interplanetario, Via Fosso del Cavaliere 100</s1>
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<s3>ITA</s3>
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<country>Italie</country>
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</affiliation>
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<sZ>14 aut.</sZ>
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<country>Italie</country>
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</author>
<author><name sortKey="Natoli, P" sort="Natoli, P" uniqKey="Natoli P" first="P." last="Natoli">P. Natoli</name>
<affiliation wicri:level="1"><inist:fA14 i1="14"><s1>Agenzia Spaziale Italiana (ASI) Science Data Center</s1>
<s2>00044 Frascati (Roma)</s2>
<s3>ITA</s3>
<sZ>14 aut.</sZ>
<sZ>17 aut.</sZ>
<sZ>18 aut.</sZ>
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</inist:fA14>
<country>Italie</country>
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<s3>ITA</s3>
<sZ>18 aut.</sZ>
</inist:fA14>
<country>Italie</country>
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</author>
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<author><name sortKey="Pezzuto, S" sort="Pezzuto, S" uniqKey="Pezzuto S" first="S." last="Pezzuto">S. Pezzuto</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>INAF-Istituto Fisica Spazio Interplanetario, Via Fosso del Cavaliere 100</s1>
<s2>00133 Roma</s2>
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</affiliation>
</author>
<author><name sortKey="Piacentini, F" sort="Piacentini, F" uniqKey="Piacentini F" first="F." last="Piacentini">F. Piacentini</name>
<affiliation wicri:level="3"><inist:fA14 i1="16"><s1>Dipartimento di Fisica, Università di Roma 1 "La Sapienza"</s1>
<s2>Roma</s2>
<s3>ITA</s3>
<sZ>21 aut.</sZ>
<sZ>26 aut.</sZ>
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<country>Italie</country>
<placeName><settlement type="city">Rome</settlement>
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<author><name sortKey="Polenta, G" sort="Polenta, G" uniqKey="Polenta G" first="G." last="Polenta">G. Polenta</name>
<affiliation wicri:level="1"><inist:fA14 i1="14"><s1>Agenzia Spaziale Italiana (ASI) Science Data Center</s1>
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<sZ>18 aut.</sZ>
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<country>Italie</country>
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<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>INAF-Istituto Fisica Spazio Interplanetario, Via Fosso del Cavaliere 100</s1>
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<author><name sortKey="Schisano, E" sort="Schisano, E" uniqKey="Schisano E" first="E." last="Schisano">E. Schisano</name>
<affiliation wicri:level="1"><inist:fA14 i1="01"><s1>INAF-Istituto Fisica Spazio Interplanetario, Via Fosso del Cavaliere 100</s1>
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<country>Italie</country>
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<affiliation wicri:level="3"><inist:fA14 i1="17"><s1>Dipartimento di Fisica, Università di Roma 2 "Tor Vergata"</s1>
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<s3>ITA</s3>
<sZ>25 aut.</sZ>
</inist:fA14>
<country>Italie</country>
<placeName><settlement type="city">Rome</settlement>
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<author><name sortKey="Veneziani, M" sort="Veneziani, M" uniqKey="Veneziani M" first="M." last="Veneziani">M. Veneziani</name>
<affiliation wicri:level="3"><inist:fA14 i1="16"><s1>Dipartimento di Fisica, Università di Roma 1 "La Sapienza"</s1>
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<s3>ITA</s3>
<sZ>21 aut.</sZ>
<sZ>26 aut.</sZ>
</inist:fA14>
<country>Italie</country>
<placeName><settlement type="city">Rome</settlement>
<region nuts="2">Latium</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Battersby, C" sort="Battersby, C" uniqKey="Battersby C" first="C." last="Battersby">C. Battersby</name>
<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Center for Astrophysics and Space Astronomy, University of Colorado</s1>
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</inist:fA14>
<country>États-Unis</country>
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</author>
<author><name sortKey="Burton, M" sort="Burton, M" uniqKey="Burton M" first="M." last="Burton">M. Burton</name>
<affiliation wicri:level="1"><inist:fA14 i1="18"><s1>School of Physics, University of New South Wales</s1>
<s3>AUS</s3>
<sZ>28 aut.</sZ>
</inist:fA14>
<country>Australie</country>
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</author>
<author><name sortKey="Carey, S" sort="Carey, S" uniqKey="Carey S" first="S." last="Carey">S. Carey</name>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Spitzer Science Center, California Institute of Technology, 1200 E. California B1.</s1>
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<country>États-Unis</country>
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<author><name sortKey="Fukui, Y" sort="Fukui, Y" uniqKey="Fukui Y" first="Y." last="Fukui">Y. Fukui</name>
<affiliation wicri:level="1"><inist:fA14 i1="19"><s1>Department of Astrophysics, Nagoya University</s1>
<s2>Nagoya</s2>
<s3>JPN</s3>
<sZ>30 aut.</sZ>
</inist:fA14>
<country>Japon</country>
<wicri:noRegion>Nagoya</wicri:noRegion>
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<author><name sortKey="Li, J Z" sort="Li, J Z" uniqKey="Li J" first="J. Z." last="Li">J. Z. Li</name>
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<affiliation wicri:level="1"><inist:fA14 i1="21"><s1>NASA Herschel Science Center-California Institute of Technology, 1200 E. California Bl.</s1>
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<country>États-Unis</country>
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<country>Royaume-Uni</country>
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</affiliation>
</author>
<author><name sortKey="Motte, F" sort="Motte, F" uniqKey="Motte F" first="F." last="Motte">F. Motte</name>
<affiliation wicri:level="1"><inist:fA14 i1="22"><s1>Laboratoire AIM, CEA/DSM-INSU/CNRS-Université Paris Diderot, IRFU/SAp CEA-Saclay</s1>
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<country>France</country>
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<wicri:noRegion>IRFU/SAp CEA-Saclay</wicri:noRegion>
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<affiliation wicri:level="3"><inist:fA14 i1="23"><s1>MPIfR-MPG</s1>
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<affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Center for Astrophysics and Space Astronomy, University of Colorado</s1>
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<author><name sortKey="Tan, J C" sort="Tan, J C" uniqKey="Tan J" first="J. C." last="Tan">J. C. Tan</name>
<affiliation wicri:level="1"><inist:fA14 i1="24"><s1>Departments of Astronomy & Physics, University of Florida</s1>
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<s3>USA</s3>
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<country>États-Unis</country>
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<country>Royaume-Uni</country>
<wicri:noRegion>Hatfield</wicri:noRegion>
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<author><name sortKey="Ward Thompson, D" sort="Ward Thompson, D" uniqKey="Ward Thompson D" first="D." last="Ward-Thompson">D. Ward-Thompson</name>
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<author><name sortKey="White, G" sort="White, G" uniqKey="White G" first="G." last="White">G. White</name>
<affiliation wicri:level="1"><inist:fA14 i1="12"><s1>STFC, Rutherford Appleton Labs</s1>
<s2>Didcot</s2>
<s3>GBR</s3>
<sZ>12 aut.</sZ>
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<country>Royaume-Uni</country>
<wicri:noRegion>Didcot</wicri:noRegion>
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</author>
<author><name sortKey="Umana, G" sort="Umana, G" uniqKey="Umana G" first="G." last="Umana">G. Umana</name>
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</analytic>
<series><title level="j" type="main">The Astrophysical journal</title>
<title level="j" type="abbreviated">Astrophys. j.</title>
<idno type="ISSN">0004-637X</idno>
<imprint><date when="2011">2011</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt><title level="j" type="main">The Astrophysical journal</title>
<title level="j" type="abbreviated">Astrophys. j.</title>
<idno type="ISSN">0004-637X</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Dense cloud</term>
<term>Elliptic shape</term>
<term>Flattening</term>
<term>Galactic bar</term>
<term>Galactic centers</term>
<term>Galaxies</term>
<term>Milky Way</term>
<term>Models</term>
<term>Molecular clouds</term>
<term>Morphology</term>
<term>Orbits</term>
<term>Star formation</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Nuage dense</term>
<term>Nuage moléculaire</term>
<term>Centre galactique</term>
<term>Voie lactée</term>
<term>Modèle</term>
<term>Forme elliptique</term>
<term>Barre galactique</term>
<term>Orbite</term>
<term>Morphologie</term>
<term>Aplatissement</term>
<term>Galaxies</term>
<term>Formation stellaire</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">Thermal images of cold dust in the Central Molecular Zone of the Milky Way, obtained with the far-infrared cameras on board the Herschel satellite, reveal a ˜3 x 10<sup>7</sup>
 M<sub>◦.</sub>
 ring of dense and cold clouds orbiting the Galactic center. Using a simple toy model, an elliptical shape having semi-major axes of 100 and 60 pc is deduced. The major axis of this 100 pc ring is inclined by about 40° with respect to the plane of the sky and is oriented perpendicular to the major axes of the Galactic Bar. The 100 pc ring appears to trace the system of stable x<sub>2</sub>
 orbits predicted for the barred Galactic potential. Sgr A* is displaced with respect to the geometrical center of symmetry of the ring. The ring is twisted and its morphology suggests a flattening ratio of 2 for the Galactic potential, which is in good agreement with the bulge flattening ratio derived from the 2MASS data.</div>
</front>
</TEI>
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<li>Australie</li>
<li>Canada</li>
<li>France</li>
<li>Italie</li>
<li>Japon</li>
<li>Royaume-Uni</li>
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<li>États-Unis</li>
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<li>Angleterre</li>
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<orgName><li>University College de Londres</li>
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<li>Université de Toronto</li>
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<tree><noCountry><name sortKey="Umana, G" sort="Umana, G" uniqKey="Umana G" first="G." last="Umana">G. Umana</name>
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<name sortKey="Natoli, P" sort="Natoli, P" uniqKey="Natoli P" first="P." last="Natoli">P. Natoli</name>
<name sortKey="Natoli, P" sort="Natoli, P" uniqKey="Natoli P" first="P." last="Natoli">P. Natoli</name>
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</country>
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<country name="France"><region name="Occitanie (région administrative)"><name sortKey="Bernard, J P" sort="Bernard, J P" uniqKey="Bernard J" first="J. P." last="Bernard">J. P. Bernard</name>
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<name sortKey="Bernard, J P" sort="Bernard, J P" uniqKey="Bernard J" first="J. P." last="Bernard">J. P. Bernard</name>
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<country name="République populaire de Chine"><noRegion><name sortKey="Li, J Z" sort="Li, J Z" uniqKey="Li J" first="J. Z." last="Li">J. Z. Li</name>
</noRegion>
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{{Explor lien
   |wiki=    Wicri/Asie
   |area=    AustralieFrV1
   |flux=    Main
   |étape=   Exploration
   |type=    RBID
   |clé=     Pascal:11-0321674
   |texte=   A 100 pc ELLIPTICAL AND TWISTED RING OF COLD AND DENSE MOLECULAR CLOUDS REVEALED BY HERSCHEL AROUND THE GALACTIC CENTER
}}

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	Serveur d'exploration sur les relations entre la France et l'Australie
	Attention, ce site est en cours de développement ! Attention, site généré par des moyens informatiques à partir de corpus bruts. Les informations ne sont donc pas validées.

Serveur d'exploration sur les relations entre la France et l'Australie

A 100 pc ELLIPTICAL AND TWISTED RING OF COLD AND DENSE MOLECULAR CLOUDS REVEALED BY HERSCHEL AROUND THE GALACTIC CENTER

A 100 pc ELLIPTICAL AND TWISTED RING OF COLD AND DENSE MOLECULAR CLOUDS REVEALED BY HERSCHEL AROUND THE GALACTIC CENTER

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