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RAVE spectroscopy of luminous blue variables in the Large Magellanic Cloud

Identifieur interne : 002902 ( PascalFrancis/Checkpoint ); précédent : 002901; suivant : 002903

RAVE spectroscopy of luminous blue variables in the Large Magellanic Cloud

Auteurs : U. Munari [Italie] ; A. Siviero [Italie, Allemagne] ; O. Bienayme [France] ; J. Binney [Royaume-Uni] ; J. Bland-Hawthorn [Australie] ; R. Campbell [Allemagne, Australie] ; K. C. Freeman [Australie] ; J. P. Fulbright [États-Unis] ; B. K. Gibson [Royaume-Uni] ; G. Gilmore [Royaume-Uni] ; E. K. Grebel [Allemagne] ; A. Helmil [Pays-Bas] ; J. F. Navarre [Canada] ; Q. A. Parker [Australie] ; W. Reid [Australie] ; G. M. Seabroke [Royaume-Uni] ; A. Siebert [France, Allemagne] ; M. Steinmetz [Allemagne] ; F. G. Watson [Australie] ; M. Williams [Allemagne, Australie] ; R. F. G. Wyse [États-Unis] ; T. Zwitter [Slovénie]

Source :

RBID : Pascal:09-0378705

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English descriptors

Abstract

Context. The RAVE spectroscopic survey for galactic structure and evolution obtains 8400-8800 Å spectra at 7500 resolving power at the UK Schmidt Telescope using the 6dF multi-fiber positioner. More than 300 000 9 < IC ≤ 12 and |b| ≥ 25° southern stars have been observed to date. Aims. This paper presents the first intrinsic examination of stellar spectra from the RAVE survey, aimed at evaluating their diagnostic potential for peculiar stars and at contributing to the general understanding of luminous blue variables (LBVs). Methods. We used the multi-epoch spectra for all seven LBVs observed, between 2005 and 2008, in the Large Magellanic Cloud (LMC) by the RAVE survey. Results. We demonstrate that RAVE spectra possess significant diagnostic potential when applied to peculiar stars and, in particular, LBVs. The behaviour of the radial velocities for both emission and absorption lines, and the spectral changes between outburst and quiescence states are described and found to agree with evidence gathered at more conventional wavelengths. The wind outflow signatures and their variability are investigated, with multi-components detected in S Doradus. Photoionisation modelling of the rich emission line spectrum of R 127 shows evidence of a massive detached ionised shell that was ejected during the 1982-2000 outburst. Surface inhomogeneities in the nuclear-processed material, brought to the surface by heavy mass loss, could have been observed in S Doradus, even if alternative explanations are possible. We also detect the transition from quiescence to outburst state in R 71. Finally, our spectrum of R 84 offers one of the clearest views of its cool companion.


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Pascal:09-0378705

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</affiliation>
</author>
<author>
<name sortKey="Bland Hawthorn, J" sort="Bland Hawthorn, J" uniqKey="Bland Hawthorn J" first="J." last="Bland-Hawthorn">J. Bland-Hawthorn</name>
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<country>Australie</country>
<placeName>
<settlement type="city">Sydney</settlement>
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</placeName>
<orgName type="university">Université de Sydney</orgName>
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</author>
<author>
<name sortKey="Campbell, R" sort="Campbell, R" uniqKey="Campbell R" first="R." last="Campbell">R. Campbell</name>
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<sZ>17 aut.</sZ>
<sZ>18 aut.</sZ>
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<country>Allemagne</country>
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<region type="land" nuts="2">Brandebourg</region>
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<affiliation wicri:level="3">
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<s1>Macquarie University</s1>
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<s3>AUS</s3>
<sZ>6 aut.</sZ>
<sZ>14 aut.</sZ>
<sZ>15 aut.</sZ>
</inist:fA14>
<country>Australie</country>
<placeName>
<settlement type="city">Sydney</settlement>
<region type="état">Nouvelle-Galles du Sud</region>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Freeman, K C" sort="Freeman, K C" uniqKey="Freeman K" first="K. C." last="Freeman">K. C. Freeman</name>
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<s1>RSAA Australian National University</s1>
<s2>Camberra</s2>
<s3>AUS</s3>
<sZ>7 aut.</sZ>
<sZ>20 aut.</sZ>
</inist:fA14>
<country>Australie</country>
<wicri:noRegion>RSAA Australian National University</wicri:noRegion>
</affiliation>
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<author>
<name sortKey="Fulbright, J P" sort="Fulbright, J P" uniqKey="Fulbright J" first="J. P." last="Fulbright">J. P. Fulbright</name>
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<inist:fA14 i1="08">
<s1>Johns Hopkins University</s1>
<s2>Baltimore, Maryland</s2>
<s3>USA</s3>
<sZ>8 aut.</sZ>
<sZ>21 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<placeName>
<region type="state">Maryland</region>
</placeName>
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<author>
<name sortKey="Gibson, B K" sort="Gibson, B K" uniqKey="Gibson B" first="B. K." last="Gibson">B. K. Gibson</name>
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<inist:fA14 i1="09">
<s1>Jeremiah Horrocks Institute for Astrophysics & Super-computing, University of Central Lancashire</s1>
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<s3>GBR</s3>
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</inist:fA14>
<country>Royaume-Uni</country>
<wicri:noRegion>Preston</wicri:noRegion>
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<author>
<name sortKey="Gilmore, G" sort="Gilmore, G" uniqKey="Gilmore G" first="G." last="Gilmore">G. Gilmore</name>
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<s1>Institute of Astronomy, University of Cambridge</s1>
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<sZ>10 aut.</sZ>
<sZ>16 aut.</sZ>
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<country>Royaume-Uni</country>
<placeName>
<settlement type="city">Cambridge</settlement>
<region type="country">Angleterre</region>
<region type="région" nuts="1">Angleterre de l'Est</region>
</placeName>
<orgName type="university">Université de Cambridge</orgName>
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<name sortKey="Grebel, E K" sort="Grebel, E K" uniqKey="Grebel E" first="E. K." last="Grebel">E. K. Grebel</name>
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<s1>Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg</s1>
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<sZ>11 aut.</sZ>
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<country>Allemagne</country>
<placeName>
<region type="land" nuts="1">Bade-Wurtemberg</region>
<region type="district" nuts="2">District de Karlsruhe</region>
<settlement type="city">Heidelberg</settlement>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Helmil, A" sort="Helmil, A" uniqKey="Helmil A" first="A." last="Helmil">A. Helmil</name>
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<inist:fA14 i1="12">
<s1>Kapteyn Astronomical Institute, University of Groningen</s1>
<s2>Groningen</s2>
<s3>NLD</s3>
<sZ>12 aut.</sZ>
</inist:fA14>
<country>Pays-Bas</country>
<placeName>
<settlement type="city">Groningue</settlement>
<region nuts="2" type="province">Groningue (province)</region>
<settlement type="city">Groningue (ville)</settlement>
</placeName>
<orgName type="university">Université de Groningue</orgName>
</affiliation>
</author>
<author>
<name sortKey="Navarre, J F" sort="Navarre, J F" uniqKey="Navarre J" first="J. F." last="Navarre">J. F. Navarre</name>
<affiliation wicri:level="1">
<inist:fA14 i1="13">
<s1>University of Victoria</s1>
<s2>Victoria</s2>
<s3>CAN</s3>
<sZ>13 aut.</sZ>
</inist:fA14>
<country>Canada</country>
<wicri:noRegion>University of Victoria</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Parker, Q A" sort="Parker, Q A" uniqKey="Parker Q" first="Q. A." last="Parker">Q. A. Parker</name>
<affiliation wicri:level="3">
<inist:fA14 i1="06">
<s1>Macquarie University</s1>
<s2>Sydney</s2>
<s3>AUS</s3>
<sZ>6 aut.</sZ>
<sZ>14 aut.</sZ>
<sZ>15 aut.</sZ>
</inist:fA14>
<country>Australie</country>
<placeName>
<settlement type="city">Sydney</settlement>
<region type="état">Nouvelle-Galles du Sud</region>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Reid, W" sort="Reid, W" uniqKey="Reid W" first="W." last="Reid">W. Reid</name>
<affiliation wicri:level="3">
<inist:fA14 i1="06">
<s1>Macquarie University</s1>
<s2>Sydney</s2>
<s3>AUS</s3>
<sZ>6 aut.</sZ>
<sZ>14 aut.</sZ>
<sZ>15 aut.</sZ>
</inist:fA14>
<country>Australie</country>
<placeName>
<settlement type="city">Sydney</settlement>
<region type="état">Nouvelle-Galles du Sud</region>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Seabroke, G M" sort="Seabroke, G M" uniqKey="Seabroke G" first="G. M." last="Seabroke">G. M. Seabroke</name>
<affiliation wicri:level="4">
<inist:fA14 i1="10">
<s1>Institute of Astronomy, University of Cambridge</s1>
<s3>GBR</s3>
<sZ>10 aut.</sZ>
<sZ>16 aut.</sZ>
</inist:fA14>
<country>Royaume-Uni</country>
<placeName>
<settlement type="city">Cambridge</settlement>
<region type="country">Angleterre</region>
<region type="région" nuts="1">Angleterre de l'Est</region>
</placeName>
<orgName type="university">Université de Cambridge</orgName>
</affiliation>
<affiliation wicri:level="1">
<inist:fA14 i1="14">
<s1>E2v Centre for Electronic Imaging, Planetary and Space Sciences Research Institute, The Open University</s1>
<s2>Milton Keynes</s2>
<s3>GBR</s3>
<sZ>16 aut.</sZ>
</inist:fA14>
<country>Royaume-Uni</country>
<wicri:noRegion>Milton Keynes</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Siebert, A" sort="Siebert, A" uniqKey="Siebert A" first="A." last="Siebert">A. Siebert</name>
<affiliation wicri:level="3">
<inist:fA14 i1="02">
<s1>Observatoire de Strasbourg</s1>
<s2>Strasbourg</s2>
<s3>FRA</s3>
<sZ>3 aut.</sZ>
<sZ>17 aut.</sZ>
</inist:fA14>
<country>France</country>
<placeName>
<region type="region">Grand Est</region>
<region type="old region">Alsace (région administrative)</region>
<settlement type="city">Strasbourg</settlement>
</placeName>
</affiliation>
<affiliation wicri:level="3">
<inist:fA14 i1="05">
<s1>Astrophysikalisches Institut Potsdam</s1>
<s2>Potsdam</s2>
<s3>DEU</s3>
<sZ>2 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>17 aut.</sZ>
<sZ>18 aut.</sZ>
<sZ>20 aut.</sZ>
</inist:fA14>
<country>Allemagne</country>
<placeName>
<region type="land" nuts="2">Brandebourg</region>
<settlement type="city">Potsdam</settlement>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Steinmetz, M" sort="Steinmetz, M" uniqKey="Steinmetz M" first="M." last="Steinmetz">M. Steinmetz</name>
<affiliation wicri:level="3">
<inist:fA14 i1="05">
<s1>Astrophysikalisches Institut Potsdam</s1>
<s2>Potsdam</s2>
<s3>DEU</s3>
<sZ>2 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>17 aut.</sZ>
<sZ>18 aut.</sZ>
<sZ>20 aut.</sZ>
</inist:fA14>
<country>Allemagne</country>
<placeName>
<region type="land" nuts="2">Brandebourg</region>
<settlement type="city">Potsdam</settlement>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Watson, F G" sort="Watson, F G" uniqKey="Watson F" first="F. G." last="Watson">F. G. Watson</name>
<affiliation wicri:level="3">
<inist:fA14 i1="15">
<s1>Anglo-Australian Observatory</s1>
<s2>Sydney</s2>
<s3>AUS</s3>
<sZ>19 aut.</sZ>
</inist:fA14>
<country>Australie</country>
<placeName>
<settlement type="city">Sydney</settlement>
<region type="état">Nouvelle-Galles du Sud</region>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Williams, M" sort="Williams, M" uniqKey="Williams M" first="M." last="Williams">M. Williams</name>
<affiliation wicri:level="3">
<inist:fA14 i1="05">
<s1>Astrophysikalisches Institut Potsdam</s1>
<s2>Potsdam</s2>
<s3>DEU</s3>
<sZ>2 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>17 aut.</sZ>
<sZ>18 aut.</sZ>
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<country>Allemagne</country>
<placeName>
<region type="land" nuts="2">Brandebourg</region>
<settlement type="city">Potsdam</settlement>
</placeName>
</affiliation>
<affiliation wicri:level="1">
<inist:fA14 i1="07">
<s1>RSAA Australian National University</s1>
<s2>Camberra</s2>
<s3>AUS</s3>
<sZ>7 aut.</sZ>
<sZ>20 aut.</sZ>
</inist:fA14>
<country>Australie</country>
<wicri:noRegion>RSAA Australian National University</wicri:noRegion>
</affiliation>
</author>
<author>
<name sortKey="Wyse, R F G" sort="Wyse, R F G" uniqKey="Wyse R" first="R. F. G." last="Wyse">R. F. G. Wyse</name>
<affiliation wicri:level="2">
<inist:fA14 i1="08">
<s1>Johns Hopkins University</s1>
<s2>Baltimore, Maryland</s2>
<s3>USA</s3>
<sZ>8 aut.</sZ>
<sZ>21 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<placeName>
<region type="state">Maryland</region>
</placeName>
</affiliation>
</author>
<author>
<name sortKey="Zwitter, T" sort="Zwitter, T" uniqKey="Zwitter T" first="T." last="Zwitter">T. Zwitter</name>
<affiliation wicri:level="1">
<inist:fA14 i1="16">
<s1>Faculty of Mathematics and Physics, University of Ljubljana</s1>
<s2>Ljubljana</s2>
<s3>SVN</s3>
<sZ>22 aut.</sZ>
</inist:fA14>
<country>Slovénie</country>
<wicri:noRegion>Ljubljana</wicri:noRegion>
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<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="2009">2009</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>Absorption line</term>
<term>B stars</term>
<term>Emission line</term>
<term>Emission line stars</term>
<term>Emission spectra</term>
<term>Galactic evolution</term>
<term>Galactic structure</term>
<term>Galaxies</term>
<term>Large Magellanic Cloud</term>
<term>Luminous blue variable star</term>
<term>Magellanic Clouds</term>
<term>Mass loss</term>
<term>Milky Way</term>
<term>Peculiar stars</term>
<term>Photoionization</term>
<term>Quiescence</term>
<term>Radial velocity</term>
<term>Spectroscopy</term>
<term>Stellar spectra</term>
<term>Stellar winds</term>
<term>Variability</term>
<term>Wolf-Rayet stars</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr">
<term>Spectrométrie</term>
<term>Etoile variable bleue lumineuse</term>
<term>Grand Nuage Magellan</term>
<term>Evolution galactique</term>
<term>Structure galactique</term>
<term>Etoile B</term>
<term>Spectre stellaire</term>
<term>Etoile particulière</term>
<term>Vitesse radiale</term>
<term>Raie émission</term>
<term>Raie absorption</term>
<term>Quiescence</term>
<term>Variabilité</term>
<term>Photoionisation</term>
<term>Spectre émission</term>
<term>Perte masse</term>
<term>Etoile raie émission</term>
<term>Vent stellaire</term>
<term>Etoile type Wolf Rayet</term>
<term>Galaxies</term>
<term>Nuages Magellan</term>
<term>Voie lactée</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr">
<term>Spectrométrie</term>
</keywords>
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<front>
<div type="abstract" xml:lang="en">Context. The RAVE spectroscopic survey for galactic structure and evolution obtains 8400-8800 Å spectra at 7500 resolving power at the UK Schmidt Telescope using the 6dF multi-fiber positioner. More than 300 000 9 < I
<sub>C</sub>
≤ 12 and |b| ≥ 25° southern stars have been observed to date. Aims. This paper presents the first intrinsic examination of stellar spectra from the RAVE survey, aimed at evaluating their diagnostic potential for peculiar stars and at contributing to the general understanding of luminous blue variables (LBVs). Methods. We used the multi-epoch spectra for all seven LBVs observed, between 2005 and 2008, in the Large Magellanic Cloud (LMC) by the RAVE survey. Results. We demonstrate that RAVE spectra possess significant diagnostic potential when applied to peculiar stars and, in particular, LBVs. The behaviour of the radial velocities for both emission and absorption lines, and the spectral changes between outburst and quiescence states are described and found to agree with evidence gathered at more conventional wavelengths. The wind outflow signatures and their variability are investigated, with multi-components detected in S Doradus. Photoionisation modelling of the rich emission line spectrum of R 127 shows evidence of a massive detached ionised shell that was ejected during the 1982-2000 outburst. Surface inhomogeneities in the nuclear-processed material, brought to the surface by heavy mass loss, could have been observed in S Doradus, even if alternative explanations are possible. We also detect the transition from quiescence to outburst state in R 71. Finally, our spectrum of R 84 offers one of the clearest views of its cool companion.</div>
</front>
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<s1>RAVE spectroscopy of luminous blue variables in the Large Magellanic Cloud</s1>
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<s1>MUNARI (U.)</s1>
</fA11>
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<s1>BINNEY (J.)</s1>
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<s1>BLAND-HAWTHORN (J.)</s1>
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<s1>ZWITTER (T.)</s1>
</fA11>
<fA14 i1="01">
<s1>INAF Osservatorio Astronomico di Padova</s1>
<s2>Asiago</s2>
<s3>ITA</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
</fA14>
<fA14 i1="02">
<s1>Observatoire de Strasbourg</s1>
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<s3>FRA</s3>
<sZ>3 aut.</sZ>
<sZ>17 aut.</sZ>
</fA14>
<fA14 i1="03">
<s1>Rudolf Pierls Center for Theoretical Physics, University of Oxford</s1>
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<sZ>4 aut.</sZ>
</fA14>
<fA14 i1="04">
<s1>Institute of Astronomy, School of Physics, University of Sydney</s1>
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<sZ>5 aut.</sZ>
</fA14>
<fA14 i1="05">
<s1>Astrophysikalisches Institut Potsdam</s1>
<s2>Potsdam</s2>
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<sZ>2 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>17 aut.</sZ>
<sZ>18 aut.</sZ>
<sZ>20 aut.</sZ>
</fA14>
<fA14 i1="06">
<s1>Macquarie University</s1>
<s2>Sydney</s2>
<s3>AUS</s3>
<sZ>6 aut.</sZ>
<sZ>14 aut.</sZ>
<sZ>15 aut.</sZ>
</fA14>
<fA14 i1="07">
<s1>RSAA Australian National University</s1>
<s2>Camberra</s2>
<s3>AUS</s3>
<sZ>7 aut.</sZ>
<sZ>20 aut.</sZ>
</fA14>
<fA14 i1="08">
<s1>Johns Hopkins University</s1>
<s2>Baltimore, Maryland</s2>
<s3>USA</s3>
<sZ>8 aut.</sZ>
<sZ>21 aut.</sZ>
</fA14>
<fA14 i1="09">
<s1>Jeremiah Horrocks Institute for Astrophysics & Super-computing, University of Central Lancashire</s1>
<s2>Preston</s2>
<s3>GBR</s3>
<sZ>9 aut.</sZ>
</fA14>
<fA14 i1="10">
<s1>Institute of Astronomy, University of Cambridge</s1>
<s3>GBR</s3>
<sZ>10 aut.</sZ>
<sZ>16 aut.</sZ>
</fA14>
<fA14 i1="11">
<s1>Astronomisches Rechen-Institut, Zentrum für Astronomie der Universität Heidelberg</s1>
<s2>Heidelberg</s2>
<s3>DEU</s3>
<sZ>11 aut.</sZ>
</fA14>
<fA14 i1="12">
<s1>Kapteyn Astronomical Institute, University of Groningen</s1>
<s2>Groningen</s2>
<s3>NLD</s3>
<sZ>12 aut.</sZ>
</fA14>
<fA14 i1="13">
<s1>University of Victoria</s1>
<s2>Victoria</s2>
<s3>CAN</s3>
<sZ>13 aut.</sZ>
</fA14>
<fA14 i1="14">
<s1>E2v Centre for Electronic Imaging, Planetary and Space Sciences Research Institute, The Open University</s1>
<s2>Milton Keynes</s2>
<s3>GBR</s3>
<sZ>16 aut.</sZ>
</fA14>
<fA14 i1="15">
<s1>Anglo-Australian Observatory</s1>
<s2>Sydney</s2>
<s3>AUS</s3>
<sZ>19 aut.</sZ>
</fA14>
<fA14 i1="16">
<s1>Faculty of Mathematics and Physics, University of Ljubljana</s1>
<s2>Ljubljana</s2>
<s3>SVN</s3>
<sZ>22 aut.</sZ>
</fA14>
<fA20>
<s1>511-520</s1>
</fA20>
<fA21>
<s1>2009</s1>
</fA21>
<fA23 i1="01">
<s0>ENG</s0>
</fA23>
<fA43 i1="01">
<s1>INIST</s1>
<s2>14176</s2>
<s5>354000187638140200</s5>
</fA43>
<fA44>
<s0>0000</s0>
<s1>© 2009 INIST-CNRS. All rights reserved.</s1>
</fA44>
<fA45>
<s0>3/4 p.</s0>
</fA45>
<fA47 i1="01" i2="1">
<s0>09-0378705</s0>
</fA47>
<fA60>
<s1>P</s1>
</fA60>
<fA61>
<s0>A</s0>
</fA61>
<fA64 i1="01" i2="1">
<s0>Astronomy and astrophysics : (Berlin. Print)</s0>
</fA64>
<fA66 i1="01">
<s0>FRA</s0>
</fA66>
<fC01 i1="01" l="ENG">
<s0>Context. The RAVE spectroscopic survey for galactic structure and evolution obtains 8400-8800 Å spectra at 7500 resolving power at the UK Schmidt Telescope using the 6dF multi-fiber positioner. More than 300 000 9 < I
<sub>C</sub>
≤ 12 and |b| ≥ 25° southern stars have been observed to date. Aims. This paper presents the first intrinsic examination of stellar spectra from the RAVE survey, aimed at evaluating their diagnostic potential for peculiar stars and at contributing to the general understanding of luminous blue variables (LBVs). Methods. We used the multi-epoch spectra for all seven LBVs observed, between 2005 and 2008, in the Large Magellanic Cloud (LMC) by the RAVE survey. Results. We demonstrate that RAVE spectra possess significant diagnostic potential when applied to peculiar stars and, in particular, LBVs. The behaviour of the radial velocities for both emission and absorption lines, and the spectral changes between outburst and quiescence states are described and found to agree with evidence gathered at more conventional wavelengths. The wind outflow signatures and their variability are investigated, with multi-components detected in S Doradus. Photoionisation modelling of the rich emission line spectrum of R 127 shows evidence of a massive detached ionised shell that was ejected during the 1982-2000 outburst. Surface inhomogeneities in the nuclear-processed material, brought to the surface by heavy mass loss, could have been observed in S Doradus, even if alternative explanations are possible. We also detect the transition from quiescence to outburst state in R 71. Finally, our spectrum of R 84 offers one of the clearest views of its cool companion.</s0>
</fC01>
<fC02 i1="01" i2="3">
<s0>001E03</s0>
</fC02>
<fC03 i1="01" i2="3" l="FRE">
<s0>Spectrométrie</s0>
<s5>26</s5>
</fC03>
<fC03 i1="01" i2="3" l="ENG">
<s0>Spectroscopy</s0>
<s5>26</s5>
</fC03>
<fC03 i1="02" i2="X" l="FRE">
<s0>Etoile variable bleue lumineuse</s0>
<s5>27</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG">
<s0>Luminous blue variable star</s0>
<s5>27</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA">
<s0>Estrella variable azul luminosa</s0>
<s5>27</s5>
</fC03>
<fC03 i1="03" i2="3" l="FRE">
<s0>Grand Nuage Magellan</s0>
<s5>28</s5>
</fC03>
<fC03 i1="03" i2="3" l="ENG">
<s0>Large Magellanic Cloud</s0>
<s5>28</s5>
</fC03>
<fC03 i1="04" i2="3" l="FRE">
<s0>Evolution galactique</s0>
<s5>29</s5>
</fC03>
<fC03 i1="04" i2="3" l="ENG">
<s0>Galactic evolution</s0>
<s5>29</s5>
</fC03>
<fC03 i1="05" i2="3" l="FRE">
<s0>Structure galactique</s0>
<s5>30</s5>
</fC03>
<fC03 i1="05" i2="3" l="ENG">
<s0>Galactic structure</s0>
<s5>30</s5>
</fC03>
<fC03 i1="06" i2="3" l="FRE">
<s0>Etoile B</s0>
<s5>31</s5>
</fC03>
<fC03 i1="06" i2="3" l="ENG">
<s0>B stars</s0>
<s5>31</s5>
</fC03>
<fC03 i1="07" i2="3" l="FRE">
<s0>Spectre stellaire</s0>
<s5>32</s5>
</fC03>
<fC03 i1="07" i2="3" l="ENG">
<s0>Stellar spectra</s0>
<s5>32</s5>
</fC03>
<fC03 i1="08" i2="3" l="FRE">
<s0>Etoile particulière</s0>
<s5>33</s5>
</fC03>
<fC03 i1="08" i2="3" l="ENG">
<s0>Peculiar stars</s0>
<s5>33</s5>
</fC03>
<fC03 i1="09" i2="3" l="FRE">
<s0>Vitesse radiale</s0>
<s5>34</s5>
</fC03>
<fC03 i1="09" i2="3" l="ENG">
<s0>Radial velocity</s0>
<s5>34</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE">
<s0>Raie émission</s0>
<s5>35</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG">
<s0>Emission line</s0>
<s5>35</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA">
<s0>Raya emisión</s0>
<s5>35</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE">
<s0>Raie absorption</s0>
<s5>36</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG">
<s0>Absorption line</s0>
<s5>36</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA">
<s0>Raya absorción</s0>
<s5>36</s5>
</fC03>
<fC03 i1="12" i2="X" l="FRE">
<s0>Quiescence</s0>
<s5>37</s5>
</fC03>
<fC03 i1="12" i2="X" l="ENG">
<s0>Quiescence</s0>
<s5>37</s5>
</fC03>
<fC03 i1="12" i2="X" l="SPA">
<s0>Quietud</s0>
<s5>37</s5>
</fC03>
<fC03 i1="13" i2="X" l="FRE">
<s0>Variabilité</s0>
<s5>38</s5>
</fC03>
<fC03 i1="13" i2="X" l="ENG">
<s0>Variability</s0>
<s5>38</s5>
</fC03>
<fC03 i1="13" i2="X" l="SPA">
<s0>Variabilidad</s0>
<s5>38</s5>
</fC03>
<fC03 i1="14" i2="3" l="FRE">
<s0>Photoionisation</s0>
<s5>39</s5>
</fC03>
<fC03 i1="14" i2="3" l="ENG">
<s0>Photoionization</s0>
<s5>39</s5>
</fC03>
<fC03 i1="15" i2="3" l="FRE">
<s0>Spectre émission</s0>
<s5>40</s5>
</fC03>
<fC03 i1="15" i2="3" l="ENG">
<s0>Emission spectra</s0>
<s5>40</s5>
</fC03>
<fC03 i1="16" i2="3" l="FRE">
<s0>Perte masse</s0>
<s5>41</s5>
</fC03>
<fC03 i1="16" i2="3" l="ENG">
<s0>Mass loss</s0>
<s5>41</s5>
</fC03>
<fC03 i1="17" i2="3" l="FRE">
<s0>Etoile raie émission</s0>
<s5>42</s5>
</fC03>
<fC03 i1="17" i2="3" l="ENG">
<s0>Emission line stars</s0>
<s5>42</s5>
</fC03>
<fC03 i1="18" i2="3" l="FRE">
<s0>Vent stellaire</s0>
<s5>43</s5>
</fC03>
<fC03 i1="18" i2="3" l="ENG">
<s0>Stellar winds</s0>
<s5>43</s5>
</fC03>
<fC03 i1="19" i2="3" l="FRE">
<s0>Etoile type Wolf Rayet</s0>
<s5>44</s5>
</fC03>
<fC03 i1="19" i2="3" l="ENG">
<s0>Wolf-Rayet stars</s0>
<s5>44</s5>
</fC03>
<fC03 i1="20" i2="3" l="FRE">
<s0>Galaxies</s0>
<s5>45</s5>
</fC03>
<fC03 i1="20" i2="3" l="ENG">
<s0>Galaxies</s0>
<s5>45</s5>
</fC03>
<fC03 i1="21" i2="3" l="FRE">
<s0>Nuages Magellan</s0>
<s5>46</s5>
</fC03>
<fC03 i1="21" i2="3" l="ENG">
<s0>Magellanic Clouds</s0>
<s5>46</s5>
</fC03>
<fC03 i1="22" i2="3" l="FRE">
<s0>Voie lactée</s0>
<s5>47</s5>
</fC03>
<fC03 i1="22" i2="3" l="ENG">
<s0>Milky Way</s0>
<s5>47</s5>
</fC03>
<fN21>
<s1>271</s1>
</fN21>
<fN44 i1="01">
<s1>OTO</s1>
</fN44>
<fN82>
<s1>OTO</s1>
</fN82>
</pA>
</standard>
</inist>
<affiliations>
<list>
<country>
<li>Allemagne</li>
<li>Australie</li>
<li>Canada</li>
<li>France</li>
<li>Italie</li>
<li>Pays-Bas</li>
<li>Royaume-Uni</li>
<li>Slovénie</li>
<li>États-Unis</li>
</country>
<region>
<li>Alsace (région administrative)</li>
<li>Angleterre</li>
<li>Angleterre de l'Est</li>
<li>Bade-Wurtemberg</li>
<li>Brandebourg</li>
<li>District de Karlsruhe</li>
<li>Grand Est</li>
<li>Groningue (province)</li>
<li>Maryland</li>
<li>Nouvelle-Galles du Sud</li>
<li>Oxfordshire</li>
</region>
<settlement>
<li>Cambridge</li>
<li>Groningue</li>
<li>Groningue (ville)</li>
<li>Heidelberg</li>
<li>Oxford</li>
<li>Potsdam</li>
<li>Strasbourg</li>
<li>Sydney</li>
</settlement>
<orgName>
<li>Université d'Oxford</li>
<li>Université de Cambridge</li>
<li>Université de Groningue</li>
<li>Université de Sydney</li>
</orgName>
</list>
<tree>
<country name="Italie">
<noRegion>
<name sortKey="Munari, U" sort="Munari, U" uniqKey="Munari U" first="U." last="Munari">U. Munari</name>
</noRegion>
<name sortKey="Siviero, A" sort="Siviero, A" uniqKey="Siviero A" first="A." last="Siviero">A. Siviero</name>
</country>
<country name="Allemagne">
<region name="Brandebourg">
<name sortKey="Siviero, A" sort="Siviero, A" uniqKey="Siviero A" first="A." last="Siviero">A. Siviero</name>
</region>
<name sortKey="Campbell, R" sort="Campbell, R" uniqKey="Campbell R" first="R." last="Campbell">R. Campbell</name>
<name sortKey="Grebel, E K" sort="Grebel, E K" uniqKey="Grebel E" first="E. K." last="Grebel">E. K. Grebel</name>
<name sortKey="Siebert, A" sort="Siebert, A" uniqKey="Siebert A" first="A." last="Siebert">A. Siebert</name>
<name sortKey="Steinmetz, M" sort="Steinmetz, M" uniqKey="Steinmetz M" first="M." last="Steinmetz">M. Steinmetz</name>
<name sortKey="Williams, M" sort="Williams, M" uniqKey="Williams M" first="M." last="Williams">M. Williams</name>
</country>
<country name="France">
<region name="Grand Est">
<name sortKey="Bienayme, O" sort="Bienayme, O" uniqKey="Bienayme O" first="O." last="Bienayme">O. Bienayme</name>
</region>
<name sortKey="Siebert, A" sort="Siebert, A" uniqKey="Siebert A" first="A." last="Siebert">A. Siebert</name>
</country>
<country name="Royaume-Uni">
<region name="Angleterre">
<name sortKey="Binney, J" sort="Binney, J" uniqKey="Binney J" first="J." last="Binney">J. Binney</name>
</region>
<name sortKey="Gibson, B K" sort="Gibson, B K" uniqKey="Gibson B" first="B. K." last="Gibson">B. K. Gibson</name>
<name sortKey="Gilmore, G" sort="Gilmore, G" uniqKey="Gilmore G" first="G." last="Gilmore">G. Gilmore</name>
<name sortKey="Seabroke, G M" sort="Seabroke, G M" uniqKey="Seabroke G" first="G. M." last="Seabroke">G. M. Seabroke</name>
<name sortKey="Seabroke, G M" sort="Seabroke, G M" uniqKey="Seabroke G" first="G. M." last="Seabroke">G. M. Seabroke</name>
</country>
<country name="Australie">
<region name="Nouvelle-Galles du Sud">
<name sortKey="Bland Hawthorn, J" sort="Bland Hawthorn, J" uniqKey="Bland Hawthorn J" first="J." last="Bland-Hawthorn">J. Bland-Hawthorn</name>
</region>
<name sortKey="Campbell, R" sort="Campbell, R" uniqKey="Campbell R" first="R." last="Campbell">R. Campbell</name>
<name sortKey="Freeman, K C" sort="Freeman, K C" uniqKey="Freeman K" first="K. C." last="Freeman">K. C. Freeman</name>
<name sortKey="Parker, Q A" sort="Parker, Q A" uniqKey="Parker Q" first="Q. A." last="Parker">Q. A. Parker</name>
<name sortKey="Reid, W" sort="Reid, W" uniqKey="Reid W" first="W." last="Reid">W. Reid</name>
<name sortKey="Watson, F G" sort="Watson, F G" uniqKey="Watson F" first="F. G." last="Watson">F. G. Watson</name>
<name sortKey="Williams, M" sort="Williams, M" uniqKey="Williams M" first="M." last="Williams">M. Williams</name>
</country>
<country name="États-Unis">
<region name="Maryland">
<name sortKey="Fulbright, J P" sort="Fulbright, J P" uniqKey="Fulbright J" first="J. P." last="Fulbright">J. P. Fulbright</name>
</region>
<name sortKey="Wyse, R F G" sort="Wyse, R F G" uniqKey="Wyse R" first="R. F. G." last="Wyse">R. F. G. Wyse</name>
</country>
<country name="Pays-Bas">
<region name="Groningue (province)">
<name sortKey="Helmil, A" sort="Helmil, A" uniqKey="Helmil A" first="A." last="Helmil">A. Helmil</name>
</region>
</country>
<country name="Canada">
<noRegion>
<name sortKey="Navarre, J F" sort="Navarre, J F" uniqKey="Navarre J" first="J. F." last="Navarre">J. F. Navarre</name>
</noRegion>
</country>
<country name="Slovénie">
<noRegion>
<name sortKey="Zwitter, T" sort="Zwitter, T" uniqKey="Zwitter T" first="T." last="Zwitter">T. Zwitter</name>
</noRegion>
</country>
</tree>
</affiliations>
</record>

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