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.

Jet and torus orientations in high redshift radio galaxies

Identifieur interne : 005B20 ( Main/Exploration ); précédent : 005B19; suivant : 005B21

Jet and torus orientations in high redshift radio galaxies

Auteurs : G. Drouart [Allemagne, France, Australie] ; C. De Breuck [Allemagne] ; J. Vernet [Allemagne] ; R. A. Laing [Allemagne] ; N. Seymour [Australie] ; D. Stern [États-Unis] ; M. Haas [Allemagne] ; E. A. Pier [États-Unis] ; B. Rocca-Volmerange [France]

Source :

RBID : Pascal:13-0063999

Descripteurs français

English descriptors

Abstract

We examine the relative orientation of radio jets and dusty tori surrounding the active galactic nucleus (AGN) in powerful radio galaxies at z > 1. The radio core dominance R = P20 GHzcore/P500 MHzextended serves as an orientation indicator, measuring the ratio between the anisotropic Doppler-beamed core emission and the isotropic lobe emission. Assuming a fixed cylindrical geometry for the hot, dusty torus, we derive its inclination i by fitting optically-thick radiative transfer models to spectral energy distributions obtained with the Spitzer Space Telescope. We find a highly significant anti-correlation (p < 0.0001) between R and i in our sample of 35 type 2 AGN combined with a sample of 18 z ∼ 1 3CR sources containing both type 1 and 2 AGN. This analysis provides observational evidence both for the Unified scheme of AGN and for the common assumption that radio jets are in general perpendicular to the plane of the torus. The use of inclinations derived from mid-infrared photometry breaks several degeneracies which have been problematic in earlier analyses. We illustrate this by deriving the core Lorentz factor Γ from the R-i anti-correlation, finding Γ ? 1.3.


Affiliations:


Links toward previous steps (curation, corpus...)


Le document en format XML

<record>
<TEI>
<teiHeader>
<fileDesc>
<titleStmt>
<title xml:lang="en" level="a">Jet and torus orientations in high redshift radio galaxies</title>
<author>
<name sortKey="Drouart, G" sort="Drouart, G" uniqKey="Drouart G" first="G." last="Drouart">G. Drouart</name>
<affiliation wicri:level="1">
<inist:fA14 i1="01">
<s1>European Southern Observatory, Karl Schwarzschild Strasse 2</s1>
<s2>85748 Garching bei München</s2>
<s3>DEU</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Allemagne</country>
<wicri:noRegion>85748 Garching bei München</wicri:noRegion>
<wicri:noRegion>Karl Schwarzschild Strasse 2</wicri:noRegion>
<wicri:noRegion>85748 Garching bei München</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1">
<inist:fA14 i1="02">
<s1>Institut d'Astrophysique de Paris, 98bis boulevard Arago</s1>
<s2>75014 Paris</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>9 aut.</sZ>
</inist:fA14>
<country>France</country>
<wicri:noRegion>75014 Paris</wicri:noRegion>
<placeName>
<settlement type="city">Paris</settlement>
<region type="région" nuts="2">Île-de-France</region>
</placeName>
</affiliation>
<affiliation wicri:level="1">
<inist:fA14 i1="03">
<s1>CSIRO Astronomy & Space Science, PO Box 76</s1>
<s2>Epping, NSW 1710</s2>
<s3>AUS</s3>
<sZ>1 aut.</sZ>
<sZ>5 aut.</sZ>
</inist:fA14>
<country>Australie</country>
<wicri:noRegion>Epping, NSW 1710</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="De Breuck, C" sort="De Breuck, C" uniqKey="De Breuck C" first="C." last="De Breuck">C. De Breuck</name>
<affiliation wicri:level="1">
<inist:fA14 i1="01">
<s1>European Southern Observatory, Karl Schwarzschild Strasse 2</s1>
<s2>85748 Garching bei München</s2>
<s3>DEU</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Allemagne</country>
<wicri:noRegion>85748 Garching bei München</wicri:noRegion>
<wicri:noRegion>Karl Schwarzschild Strasse 2</wicri:noRegion>
<wicri:noRegion>85748 Garching bei München</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Vernet, J" sort="Vernet, J" uniqKey="Vernet J" first="J." last="Vernet">J. Vernet</name>
<affiliation wicri:level="1">
<inist:fA14 i1="01">
<s1>European Southern Observatory, Karl Schwarzschild Strasse 2</s1>
<s2>85748 Garching bei München</s2>
<s3>DEU</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Allemagne</country>
<wicri:noRegion>85748 Garching bei München</wicri:noRegion>
<wicri:noRegion>Karl Schwarzschild Strasse 2</wicri:noRegion>
<wicri:noRegion>85748 Garching bei München</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Laing, R A" sort="Laing, R A" uniqKey="Laing R" first="R. A." last="Laing">R. A. Laing</name>
<affiliation wicri:level="1">
<inist:fA14 i1="01">
<s1>European Southern Observatory, Karl Schwarzschild Strasse 2</s1>
<s2>85748 Garching bei München</s2>
<s3>DEU</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Allemagne</country>
<wicri:noRegion>85748 Garching bei München</wicri:noRegion>
<wicri:noRegion>Karl Schwarzschild Strasse 2</wicri:noRegion>
<wicri:noRegion>85748 Garching bei München</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Seymour, N" sort="Seymour, N" uniqKey="Seymour N" first="N." last="Seymour">N. Seymour</name>
<affiliation wicri:level="1">
<inist:fA14 i1="03">
<s1>CSIRO Astronomy & Space Science, PO Box 76</s1>
<s2>Epping, NSW 1710</s2>
<s3>AUS</s3>
<sZ>1 aut.</sZ>
<sZ>5 aut.</sZ>
</inist:fA14>
<country>Australie</country>
<wicri:noRegion>Epping, NSW 1710</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Stern, D" sort="Stern, D" uniqKey="Stern D" first="D." last="Stern">D. Stern</name>
<affiliation wicri:level="1">
<inist:fA14 i1="04">
<s1>Jet Propulsion Laboratory, California Institute of Technology, Mail Stop 169-221</s1>
<s2>Pasadena, CA 91 109</s2>
<s3>USA</s3>
<sZ>6 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>Pasadena, CA 91 109</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Haas, M" sort="Haas, M" uniqKey="Haas M" first="M." last="Haas">M. Haas</name>
<affiliation wicri:level="1">
<inist:fA14 i1="05">
<s1>Astronomisches Institut, Ruhr-Universität Bochum, Universitätstr. 150</s1>
<s2>44801 Bochum</s2>
<s3>DEU</s3>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>Allemagne</country>
<wicri:noRegion>44801 Bochum</wicri:noRegion>
<wicri:noRegion>Universitätstr. 150</wicri:noRegion>
<wicri:noRegion>44801 Bochum</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Pier, E A" sort="Pier, E A" uniqKey="Pier E" first="E. A." last="Pier">E. A. Pier</name>
<affiliation wicri:level="1">
<inist:fA14 i1="06">
<s1>Oceanit Laboratories, 828 Fort Street Mall, Suite 600</s1>
<s2>Honolulu, HI 96813</s2>
<s3>USA</s3>
<sZ>8 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>Honolulu, HI 96813</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Rocca Volmerange, B" sort="Rocca Volmerange, B" uniqKey="Rocca Volmerange B" first="B." last="Rocca-Volmerange">B. Rocca-Volmerange</name>
<affiliation wicri:level="1">
<inist:fA14 i1="02">
<s1>Institut d'Astrophysique de Paris, 98bis boulevard Arago</s1>
<s2>75014 Paris</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>9 aut.</sZ>
</inist:fA14>
<country>France</country>
<wicri:noRegion>75014 Paris</wicri:noRegion>
<placeName>
<settlement type="city">Paris</settlement>
<region type="région" nuts="2">Île-de-France</region>
</placeName>
</affiliation>
</author>
</titleStmt>
<publicationStmt>
<idno type="wicri:source">INIST</idno>
<idno type="inist">13-0063999</idno>
<date when="2012">2012</date>
<idno type="stanalyst">PASCAL 13-0063999 INIST</idno>
<idno type="RBID">Pascal:13-0063999</idno>
<idno type="wicri:Area/PascalFrancis/Corpus">000C80</idno>
<idno type="wicri:Area/PascalFrancis/Curation">005184</idno>
<idno type="wicri:Area/PascalFrancis/Checkpoint">000F86</idno>
<idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000F86</idno>
<idno type="wicri:doubleKey">0004-6361:2012:Drouart G:jet:and:torus</idno>
<idno type="wicri:Area/Main/Merge">005E21</idno>
<idno type="wicri:Area/Main/Curation">005B20</idno>
<idno type="wicri:Area/Main/Exploration">005B20</idno>
</publicationStmt>
<sourceDesc>
<biblStruct>
<analytic>
<title xml:lang="en" level="a">Jet and torus orientations in high redshift radio galaxies</title>
<author>
<name sortKey="Drouart, G" sort="Drouart, G" uniqKey="Drouart G" first="G." last="Drouart">G. Drouart</name>
<affiliation wicri:level="1">
<inist:fA14 i1="01">
<s1>European Southern Observatory, Karl Schwarzschild Strasse 2</s1>
<s2>85748 Garching bei München</s2>
<s3>DEU</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Allemagne</country>
<wicri:noRegion>85748 Garching bei München</wicri:noRegion>
<wicri:noRegion>Karl Schwarzschild Strasse 2</wicri:noRegion>
<wicri:noRegion>85748 Garching bei München</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1">
<inist:fA14 i1="02">
<s1>Institut d'Astrophysique de Paris, 98bis boulevard Arago</s1>
<s2>75014 Paris</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>9 aut.</sZ>
</inist:fA14>
<country>France</country>
<wicri:noRegion>75014 Paris</wicri:noRegion>
<placeName>
<settlement type="city">Paris</settlement>
<region type="région" nuts="2">Île-de-France</region>
</placeName>
</affiliation>
<affiliation wicri:level="1">
<inist:fA14 i1="03">
<s1>CSIRO Astronomy & Space Science, PO Box 76</s1>
<s2>Epping, NSW 1710</s2>
<s3>AUS</s3>
<sZ>1 aut.</sZ>
<sZ>5 aut.</sZ>
</inist:fA14>
<country>Australie</country>
<wicri:noRegion>Epping, NSW 1710</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="De Breuck, C" sort="De Breuck, C" uniqKey="De Breuck C" first="C." last="De Breuck">C. De Breuck</name>
<affiliation wicri:level="1">
<inist:fA14 i1="01">
<s1>European Southern Observatory, Karl Schwarzschild Strasse 2</s1>
<s2>85748 Garching bei München</s2>
<s3>DEU</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Allemagne</country>
<wicri:noRegion>85748 Garching bei München</wicri:noRegion>
<wicri:noRegion>Karl Schwarzschild Strasse 2</wicri:noRegion>
<wicri:noRegion>85748 Garching bei München</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Vernet, J" sort="Vernet, J" uniqKey="Vernet J" first="J." last="Vernet">J. Vernet</name>
<affiliation wicri:level="1">
<inist:fA14 i1="01">
<s1>European Southern Observatory, Karl Schwarzschild Strasse 2</s1>
<s2>85748 Garching bei München</s2>
<s3>DEU</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Allemagne</country>
<wicri:noRegion>85748 Garching bei München</wicri:noRegion>
<wicri:noRegion>Karl Schwarzschild Strasse 2</wicri:noRegion>
<wicri:noRegion>85748 Garching bei München</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Laing, R A" sort="Laing, R A" uniqKey="Laing R" first="R. A." last="Laing">R. A. Laing</name>
<affiliation wicri:level="1">
<inist:fA14 i1="01">
<s1>European Southern Observatory, Karl Schwarzschild Strasse 2</s1>
<s2>85748 Garching bei München</s2>
<s3>DEU</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
<sZ>4 aut.</sZ>
</inist:fA14>
<country>Allemagne</country>
<wicri:noRegion>85748 Garching bei München</wicri:noRegion>
<wicri:noRegion>Karl Schwarzschild Strasse 2</wicri:noRegion>
<wicri:noRegion>85748 Garching bei München</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Seymour, N" sort="Seymour, N" uniqKey="Seymour N" first="N." last="Seymour">N. Seymour</name>
<affiliation wicri:level="1">
<inist:fA14 i1="03">
<s1>CSIRO Astronomy & Space Science, PO Box 76</s1>
<s2>Epping, NSW 1710</s2>
<s3>AUS</s3>
<sZ>1 aut.</sZ>
<sZ>5 aut.</sZ>
</inist:fA14>
<country>Australie</country>
<wicri:noRegion>Epping, NSW 1710</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Stern, D" sort="Stern, D" uniqKey="Stern D" first="D." last="Stern">D. Stern</name>
<affiliation wicri:level="1">
<inist:fA14 i1="04">
<s1>Jet Propulsion Laboratory, California Institute of Technology, Mail Stop 169-221</s1>
<s2>Pasadena, CA 91 109</s2>
<s3>USA</s3>
<sZ>6 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>Pasadena, CA 91 109</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Haas, M" sort="Haas, M" uniqKey="Haas M" first="M." last="Haas">M. Haas</name>
<affiliation wicri:level="1">
<inist:fA14 i1="05">
<s1>Astronomisches Institut, Ruhr-Universität Bochum, Universitätstr. 150</s1>
<s2>44801 Bochum</s2>
<s3>DEU</s3>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>Allemagne</country>
<wicri:noRegion>44801 Bochum</wicri:noRegion>
<wicri:noRegion>Universitätstr. 150</wicri:noRegion>
<wicri:noRegion>44801 Bochum</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Pier, E A" sort="Pier, E A" uniqKey="Pier E" first="E. A." last="Pier">E. A. Pier</name>
<affiliation wicri:level="1">
<inist:fA14 i1="06">
<s1>Oceanit Laboratories, 828 Fort Street Mall, Suite 600</s1>
<s2>Honolulu, HI 96813</s2>
<s3>USA</s3>
<sZ>8 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>Honolulu, HI 96813</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Rocca Volmerange, B" sort="Rocca Volmerange, B" uniqKey="Rocca Volmerange B" first="B." last="Rocca-Volmerange">B. Rocca-Volmerange</name>
<affiliation wicri:level="1">
<inist:fA14 i1="02">
<s1>Institut d'Astrophysique de Paris, 98bis boulevard Arago</s1>
<s2>75014 Paris</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>9 aut.</sZ>
</inist:fA14>
<country>France</country>
<wicri:noRegion>75014 Paris</wicri:noRegion>
<placeName>
<settlement type="city">Paris</settlement>
<region type="région" nuts="2">Île-de-France</region>
</placeName>
</affiliation>
</author>
</analytic>
<series>
<title level="j" type="main">Astronomy and astrophysics : (Berlin. Print)</title>
<title level="j" type="abbreviated">Astron. astrophys. : (Berl., Print)</title>
<idno type="ISSN">0004-6361</idno>
<imprint>
<date when="2012">2012</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt>
<title level="j" type="main">Astronomy and astrophysics : (Berlin. Print)</title>
<title level="j" type="abbreviated">Astron. astrophys. : (Berl., Print)</title>
<idno type="ISSN">0004-6361</idno>
</seriesStmt>
</fileDesc>
<profileDesc>
<textClass>
<keywords scheme="KwdEn" xml:lang="en">
<term>Active galaxies</term>
<term>Active galaxy nuclei</term>
<term>Continuum</term>
<term>Correlations</term>
<term>Cosmic radio sources</term>
<term>Degeneration</term>
<term>Galaxy nuclei</term>
<term>Infrared galaxies</term>
<term>Infrared photometry</term>
<term>Jets</term>
<term>Radiative transfer</term>
<term>Radio galaxies</term>
<term>Red shift</term>
<term>Spatial observatory</term>
<term>Spectral energy distribution</term>
<term>Spectral model</term>
<term>Tori</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr">
<term>Jet</term>
<term>Tore</term>
<term>Déplacement vers le rouge</term>
<term>Radiogalaxies</term>
<term>Noyau galactique actif</term>
<term>Transfert radiatif</term>
<term>Modèle spectral</term>
<term>Densité spectrale énergie</term>
<term>Observatoire spatial</term>
<term>Corrélation</term>
<term>Photométrie IR</term>
<term>Dégénérescence</term>
<term>Galaxies actives</term>
<term>Continuum</term>
<term>Galaxies infrarouges</term>
<term>Radiosource cosmique</term>
<term>Noyau galaxies</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front>
<div type="abstract" xml:lang="en">We examine the relative orientation of radio jets and dusty tori surrounding the active galactic nucleus (AGN) in powerful radio galaxies at z > 1. The radio core dominance R = P
<sup>20 GHz</sup>
<sub>core</sub>
/P
<sup>500 MHz</sup>
<sub>extended </sub>
serves as an orientation indicator, measuring the ratio between the anisotropic Doppler-beamed core emission and the isotropic lobe emission. Assuming a fixed cylindrical geometry for the hot, dusty torus, we derive its inclination i by fitting optically-thick radiative transfer models to spectral energy distributions obtained with the Spitzer Space Telescope. We find a highly significant anti-correlation (p < 0.0001) between R and i in our sample of 35 type 2 AGN combined with a sample of 18 z ∼ 1 3CR sources containing both type 1 and 2 AGN. This analysis provides observational evidence both for the Unified scheme of AGN and for the common assumption that radio jets are in general perpendicular to the plane of the torus. The use of inclinations derived from mid-infrared photometry breaks several degeneracies which have been problematic in earlier analyses. We illustrate this by deriving the core Lorentz factor Γ from the R-i anti-correlation, finding Γ ? 1.3.</div>
</front>
</TEI>
<affiliations>
<list>
<country>
<li>Allemagne</li>
<li>Australie</li>
<li>France</li>
<li>États-Unis</li>
</country>
<region>
<li>Île-de-France</li>
</region>
<settlement>
<li>Paris</li>
</settlement>
</list>
<tree>
<country name="Allemagne">
<noRegion>
<name sortKey="Drouart, G" sort="Drouart, G" uniqKey="Drouart G" first="G." last="Drouart">G. Drouart</name>
</noRegion>
<name sortKey="De Breuck, C" sort="De Breuck, C" uniqKey="De Breuck C" first="C." last="De Breuck">C. De Breuck</name>
<name sortKey="Haas, M" sort="Haas, M" uniqKey="Haas M" first="M." last="Haas">M. Haas</name>
<name sortKey="Laing, R A" sort="Laing, R A" uniqKey="Laing R" first="R. A." last="Laing">R. A. Laing</name>
<name sortKey="Vernet, J" sort="Vernet, J" uniqKey="Vernet J" first="J." last="Vernet">J. Vernet</name>
</country>
<country name="France">
<region name="Île-de-France">
<name sortKey="Drouart, G" sort="Drouart, G" uniqKey="Drouart G" first="G." last="Drouart">G. Drouart</name>
</region>
<name sortKey="Rocca Volmerange, B" sort="Rocca Volmerange, B" uniqKey="Rocca Volmerange B" first="B." last="Rocca-Volmerange">B. Rocca-Volmerange</name>
</country>
<country name="Australie">
<noRegion>
<name sortKey="Drouart, G" sort="Drouart, G" uniqKey="Drouart G" first="G." last="Drouart">G. Drouart</name>
</noRegion>
<name sortKey="Seymour, N" sort="Seymour, N" uniqKey="Seymour N" first="N." last="Seymour">N. Seymour</name>
</country>
<country name="États-Unis">
<noRegion>
<name sortKey="Stern, D" sort="Stern, D" uniqKey="Stern D" first="D." last="Stern">D. Stern</name>
</noRegion>
<name sortKey="Pier, E A" sort="Pier, E A" uniqKey="Pier E" first="E. A." last="Pier">E. A. Pier</name>
</country>
</tree>
</affiliations>
</record>

Pour manipuler ce document sous Unix (Dilib)

EXPLOR_STEP=$WICRI_ROOT/Wicri/Asie/explor/AustralieFrV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 005B20 | SxmlIndent | more

Ou

HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 005B20 | SxmlIndent | more

Pour mettre un lien sur cette page dans le réseau Wicri

{{Explor lien
   |wiki=    Wicri/Asie
   |area=    AustralieFrV1
   |flux=    Main
   |étape=   Exploration
   |type=    RBID
   |clé=     Pascal:13-0063999
   |texte=   Jet and torus orientations in high redshift radio galaxies
}}

Wicri

This area was generated with Dilib version V0.6.33.
Data generation: Tue Dec 5 10:43:12 2017. Site generation: Tue Mar 5 14:07:20 2024