AustralieFrV1, Main, Exploration, bibRecord, 00AA03

Whole Earth Telescope observations of the pulsating hot white dwarf PG 1707+427

Identifieur interne : 00AA03 ( Main/Exploration ); précédent : 00AA02; suivant : 00AA04

Whole Earth Telescope observations of the pulsating hot white dwarf PG 1707+427

Auteurs : S. D. Kawaler [États-Unis] ; E. M. Potter [États-Unis] ; M. Vuckovic [États-Unis] ; Z. E. Dind [Australie] ; S. O'Toole [Australie, Allemagne] ; J. C. Clemens [États-Unis] ; M. S. O'Brien [États-Unis] ; A. D. Grauer [États-Unis] ; R. E. Nather [États-Unis] ; P. A. Moskalik [Pologne] ; C. F. Claver [États-Unis] ; G. Fontaine [Canada] ; F. Wesemael [Canada] ; P. Bergeron [Canada] ; G. Vauclair [France] ; N. Dolez [France] ; M. Chevreton [France] ; S. J. Kleinman [États-Unis] ; T. K. Watson [États-Unis] ; M. A. Barstow [Royaume-Uni, Espagne] ; A. E. Sanlom [Espagne, Royaume-Uni] ; D. E. Winget [États-Unis] ; S. O. Kepler [Brésil] ; A. Kanaan [Brésil] ; P. A. Bradley [États-Unis] ; J. Dixson [États-Unis] ; J. Provencal [États-Unis] ; T. R. Bedding [Australie]

Source :

Astronomy and astrophysics : (Berlin. Print) [ 0004-6361 ] ; 2004.

RBID : Pascal:05-0032771

Descripteurs français

Pascal (Inist)
- Etoile variable pulsante, Analyse série temporelle, Photométrie, Fréquence oscillation, Modèle, Astéroséismologie, Spectrométrie masse, Evolution stellaire, Etoile naine, Naine blanche.

English descriptors

KwdEn :
- Astroseismology, Dwarf stars, Mass spectroscopy, Models, Oscillation frequency, Photometry, Pulsating variable stars, Stellar evolution, Time-series analysis, White dwarf stars.

Abstract

We report on the analysis of multisite time-series photometry of the pulsating pre-white dwarf (GW Vir star) PG 1707+427, obtained by the Whole Earth Telescope collaboration. This is the last of the known GW Vir stars without surrounding nebulae to be resolved by multisite data. Successful resolution of the pulsation spectrum resulted from the combination of high signal-to-noise observations with a large telescope and wide coverage in longitude with smaller telescopes. We find a series of 8 pulsation frequencies (along with two nonlinear combination frequencies), and identify 7 of them as part of a sequence of = 1 modes, with a common period spacing of 23.0 s. This spacing implies that the mass of PG 1707+427 is 0.57 M_◦.. Preliminary model fits suggest that the mass determined via asteroseismology is consistent with the mass determined from spectroscopy combined with evolutionary tracks.

Affiliations:

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Le document en format XML

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<region type="state">Iowa</region>
</placeName>
<orgName type="university">Université d'État de l'Iowa</orgName>
</affiliation>
</author>
<author><name sortKey="Potter, E M" sort="Potter, E M" uniqKey="Potter E" first="E. M." last="Potter">E. M. Potter</name>
<affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Department of Physics and Astronomy, Iowa State University</s1>
<s2>Ames, IA 50011</s2>
<s3>USA</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<placeName><settlement type="city">Ames (Iowa)</settlement>
<region type="state">Iowa</region>
</placeName>
<orgName type="university">Université d'État de l'Iowa</orgName>
</affiliation>
</author>
<author><name sortKey="Vuckovic, M" sort="Vuckovic, M" uniqKey="Vuckovic M" first="M." last="Vuckovic">M. Vuckovic</name>
<affiliation wicri:level="4"><inist:fA14 i1="01"><s1>Department of Physics and Astronomy, Iowa State University</s1>
<s2>Ames, IA 50011</s2>
<s3>USA</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>3 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<placeName><settlement type="city">Ames (Iowa)</settlement>
<region type="state">Iowa</region>
</placeName>
<orgName type="university">Université d'État de l'Iowa</orgName>
</affiliation>
</author>
<author><name sortKey="Dind, Z E" sort="Dind, Z E" uniqKey="Dind Z" first="Z. E." last="Dind">Z. E. Dind</name>
<affiliation wicri:level="4"><inist:fA14 i1="02"><s1>School of Physics, University of Sydney</s1>
<s2>Sydney NSW</s2>
<s3>AUS</s3>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>28 aut.</sZ>
</inist:fA14>
<country>Australie</country>
<placeName><settlement type="city">Sydney</settlement>
<region type="état">Nouvelle-Galles du Sud</region>
</placeName>
<orgName type="university">Université de Sydney</orgName>
</affiliation>
</author>
<author><name sortKey="O Toole, S" sort="O Toole, S" uniqKey="O Toole S" first="S." last="O'Toole">S. O'Toole</name>
<affiliation wicri:level="4"><inist:fA14 i1="02"><s1>School of Physics, University of Sydney</s1>
<s2>Sydney NSW</s2>
<s3>AUS</s3>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>28 aut.</sZ>
</inist:fA14>
<country>Australie</country>
<placeName><settlement type="city">Sydney</settlement>
<region type="état">Nouvelle-Galles du Sud</region>
</placeName>
<orgName type="university">Université de Sydney</orgName>
</affiliation>
<affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Dr. Remeis-Sternwarte, Astronomisches Institut der Universität Erlangen-Nürnberg, Sternwartstr. 7</s1>
<s2>Bamberg 96049</s2>
<s3>DEU</s3>
<sZ>5 aut.</sZ>
</inist:fA14>
<country>Allemagne</country>
<wicri:noRegion>96049</wicri:noRegion>
<wicri:noRegion>Sternwartstr. 7</wicri:noRegion>
<wicri:noRegion>Bamberg 96049</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Clemens, J C" sort="Clemens, J C" uniqKey="Clemens J" first="J. C." last="Clemens">J. C. Clemens</name>
<affiliation wicri:level="1"><inist:fA14 i1="04"><s1>Department of Physics and Astronomy, University of North Carolina</s1>
<s2>Chapel Hill, NC 27599-3255</s2>
<s3>USA</s3>
<sZ>6 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>Chapel Hill, NC 27599-3255</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="O Brien, M S" sort="O Brien, M S" uniqKey="O Brien M" first="M. S." last="O'Brien">M. S. O'Brien</name>
<affiliation wicri:level="1"><inist:fA14 i1="05"><s1>Department of Astronomy, Yale University</s1>
<s2>New Haven, CT 06851</s2>
<s3>USA</s3>
<sZ>7 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>New Haven, CT 06851</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Grauer, A D" sort="Grauer, A D" uniqKey="Grauer A" first="A. D." last="Grauer">A. D. Grauer</name>
<affiliation wicri:level="1"><inist:fA14 i1="06"><s1>Department of Physics and Astronomy, University of Arkansas at Little Rock</s1>
<s2>Little Rock, AR 72204</s2>
<s3>USA</s3>
<sZ>8 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>Little Rock, AR 72204</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Nather, R E" sort="Nather, R E" uniqKey="Nather R" first="R. E." last="Nather">R. E. Nather</name>
<affiliation wicri:level="1"><inist:fA14 i1="07"><s1>Department of Astronomy, University of Texas</s1>
<s2>Austin, TX 78712</s2>
<s3>USA</s3>
<sZ>9 aut.</sZ>
<sZ>22 aut.</sZ>
<sZ>26 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>Austin, TX 78712</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Moskalik, P A" sort="Moskalik, P A" uniqKey="Moskalik P" first="P. A." last="Moskalik">P. A. Moskalik</name>
<affiliation wicri:level="1"><inist:fA14 i1="08"><s1>Nicolas Copernicus Astronomical Center, Polish Academy of Sciences, ul. Bartycka 18</s1>
<s2>00-716 Warsaw</s2>
<s3>POL</s3>
<sZ>10 aut.</sZ>
</inist:fA14>
<country>Pologne</country>
<wicri:noRegion>00-716 Warsaw</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Claver, C F" sort="Claver, C F" uniqKey="Claver C" first="C. F." last="Claver">C. F. Claver</name>
<affiliation wicri:level="1"><inist:fA14 i1="09"><s1>National Optical Astronomy Observatory, 950 N. Cherry Ave</s1>
<s2>Tucson, AZ 85719</s2>
<s3>USA</s3>
<sZ>11 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>Tucson, AZ 85719</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Fontaine, G" sort="Fontaine, G" uniqKey="Fontaine G" first="G." last="Fontaine">G. Fontaine</name>
<affiliation wicri:level="1"><inist:fA14 i1="10"><s1>Département de Physique, Université de Montréal</s1>
<s2>Montréal, Québec, H3C 3J7</s2>
<s3>CAN</s3>
<sZ>12 aut.</sZ>
<sZ>13 aut.</sZ>
<sZ>14 aut.</sZ>
</inist:fA14>
<country>Canada</country>
<wicri:noRegion>Montréal, Québec, H3C 3J7</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Wesemael, F" sort="Wesemael, F" uniqKey="Wesemael F" first="F." last="Wesemael">F. Wesemael</name>
<affiliation wicri:level="1"><inist:fA14 i1="10"><s1>Département de Physique, Université de Montréal</s1>
<s2>Montréal, Québec, H3C 3J7</s2>
<s3>CAN</s3>
<sZ>12 aut.</sZ>
<sZ>13 aut.</sZ>
<sZ>14 aut.</sZ>
</inist:fA14>
<country>Canada</country>
<wicri:noRegion>Montréal, Québec, H3C 3J7</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Bergeron, P" sort="Bergeron, P" uniqKey="Bergeron P" first="P." last="Bergeron">P. Bergeron</name>
<affiliation wicri:level="1"><inist:fA14 i1="10"><s1>Département de Physique, Université de Montréal</s1>
<s2>Montréal, Québec, H3C 3J7</s2>
<s3>CAN</s3>
<sZ>12 aut.</sZ>
<sZ>13 aut.</sZ>
<sZ>14 aut.</sZ>
</inist:fA14>
<country>Canada</country>
<wicri:noRegion>Montréal, Québec, H3C 3J7</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Vauclair, G" sort="Vauclair, G" uniqKey="Vauclair G" first="G." last="Vauclair">G. Vauclair</name>
<affiliation wicri:level="4"><inist:fA14 i1="11"><s1>Université Paul Sabatier, Observatoire Midi-Pyrénées, 14 avenue E. Belin</s1>
<s2>31400 Toulouse</s2>
<s3>FRA</s3>
<sZ>15 aut.</sZ>
<sZ>16 aut.</sZ>
</inist:fA14>
<country>France</country>
<wicri:noRegion>31400 Toulouse</wicri:noRegion>
<placeName><settlement type="city">Toulouse</settlement>
<region type="region" nuts="2">Occitanie (région administrative)</region>
<region type="old region" nuts="2">Midi-Pyrénées</region>
<settlement type="city">Toulouse</settlement>
</placeName>
<orgName type="university">Université Toulouse III - Paul Sabatier</orgName>
</affiliation>
</author>
<author><name sortKey="Dolez, N" sort="Dolez, N" uniqKey="Dolez N" first="N." last="Dolez">N. Dolez</name>
<affiliation wicri:level="4"><inist:fA14 i1="11"><s1>Université Paul Sabatier, Observatoire Midi-Pyrénées, 14 avenue E. Belin</s1>
<s2>31400 Toulouse</s2>
<s3>FRA</s3>
<sZ>15 aut.</sZ>
<sZ>16 aut.</sZ>
</inist:fA14>
<country>France</country>
<placeName><region type="region" nuts="2">Occitanie (région administrative)</region>
<region type="old region" nuts="2">Midi-Pyrénées</region>
<settlement type="city">Toulouse</settlement>
<settlement type="city">Toulouse</settlement>
</placeName>
<orgName type="university">Université Toulouse III - Paul Sabatier</orgName>
</affiliation>
</author>
<author><name sortKey="Chevreton, M" sort="Chevreton, M" uniqKey="Chevreton M" first="M." last="Chevreton">M. Chevreton</name>
<affiliation wicri:level="3"><inist:fA14 i1="12"><s1>Observatoire de Paris-Meudon, DAEC</s1>
<s2>92195 Meudon</s2>
<s3>FRA</s3>
<sZ>17 aut.</sZ>
</inist:fA14>
<country>France</country>
<placeName><region type="region" nuts="2">Île-de-France</region>
<settlement type="city">Meudon</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Kleinman, S J" sort="Kleinman, S J" uniqKey="Kleinman S" first="S. J." last="Kleinman">S. J. Kleinman</name>
<affiliation wicri:level="1"><inist:fA14 i1="13"><s1>Apache Point Observatory, PO Box 59</s1>
<s2>Sunspot, NM 88349</s2>
<s3>USA</s3>
<sZ>18 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>Sunspot, NM 88349</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Watson, T K" sort="Watson, T K" uniqKey="Watson T" first="T. K." last="Watson">T. K. Watson</name>
<affiliation wicri:level="1"><inist:fA14 i1="14"><s1>Southwestern University, 1001 E, University Avenue</s1>
<s2>Georgetown, TX 78626</s2>
<s3>USA</s3>
<sZ>19 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>Georgetown, TX 78626</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Barstow, M A" sort="Barstow, M A" uniqKey="Barstow M" first="M. A." last="Barstow">M. A. Barstow</name>
<affiliation wicri:level="1"><inist:fA14 i1="15"><s1>Department of Physics and Astronomy, University of Leicester</s1>
<s2>Leicester LE1 7RH</s2>
<s3>GBR</s3>
<sZ>20 aut.</sZ>
</inist:fA14>
<country>Royaume-Uni</country>
<wicri:noRegion>Leicester LE1 7RH</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1"><inist:fA14 i1="16"><s1>Isaac Newton Group of Telescopes</s1>
<s2>37800 Santa Cruz de La Palma, Canary Islands</s2>
<s3>ESP</s3>
<sZ>20 aut.</sZ>
<sZ>21 aut.</sZ>
</inist:fA14>
<country>Espagne</country>
<wicri:noRegion>Isaac Newton Group of Telescopes</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Sanlom, A E" sort="Sanlom, A E" uniqKey="Sanlom A" first="A. E." last="Sanlom">A. E. Sanlom</name>
<affiliation wicri:level="1"><inist:fA14 i1="16"><s1>Isaac Newton Group of Telescopes</s1>
<s2>37800 Santa Cruz de La Palma, Canary Islands</s2>
<s3>ESP</s3>
<sZ>20 aut.</sZ>
<sZ>21 aut.</sZ>
</inist:fA14>
<country>Espagne</country>
<wicri:noRegion>Isaac Newton Group of Telescopes</wicri:noRegion>
</affiliation>
<affiliation wicri:level="1"><inist:fA14 i1="17"><s1>Centre for Astrophysics, University of Central Lancashire</s1>
<s2>Preston, Lancashire, PR 2HE</s2>
<s3>GBR</s3>
<sZ>21 aut.</sZ>
</inist:fA14>
<country>Royaume-Uni</country>
<wicri:noRegion>Preston, Lancashire, PR 2HE</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Winget, D E" sort="Winget, D E" uniqKey="Winget D" first="D. E." last="Winget">D. E. Winget</name>
<affiliation wicri:level="1"><inist:fA14 i1="07"><s1>Department of Astronomy, University of Texas</s1>
<s2>Austin, TX 78712</s2>
<s3>USA</s3>
<sZ>9 aut.</sZ>
<sZ>22 aut.</sZ>
<sZ>26 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>Austin, TX 78712</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Kepler, S O" sort="Kepler, S O" uniqKey="Kepler S" first="S. O." last="Kepler">S. O. Kepler</name>
<affiliation wicri:level="2"><inist:fA14 i1="18"><s1>Instituto de Fisica, UFRGS, Campus do Vale, CP 15051</s1>
<s2>Porto Alegre, RS</s2>
<s3>BRA</s3>
<sZ>23 aut.</sZ>
</inist:fA14>
<country>Brésil</country>
<placeName><region type="state">Rio Grande do Sul</region>
</placeName>
</affiliation>
</author>
<author><name sortKey="Kanaan, A" sort="Kanaan, A" uniqKey="Kanaan A" first="A." last="Kanaan">A. Kanaan</name>
<affiliation wicri:level="1"><inist:fA14 i1="19"><s1>Departamento de Física, Universidade Federal de Santa Catarina, CP 4796-CDP</s1>
<s2>88040-900 Florianópolis</s2>
<s3>BRA</s3>
<sZ>24 aut.</sZ>
</inist:fA14>
<country>Brésil</country>
<wicri:noRegion>88040-900 Florianópolis</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Bradley, P A" sort="Bradley, P A" uniqKey="Bradley P" first="P. A." last="Bradley">P. A. Bradley</name>
<affiliation wicri:level="1"><inist:fA14 i1="20"><s1>Los Alamos National Laboratory, X-2, MS T-085</s1>
<s2>Los Alamos, NM 87545</s2>
<s3>USA</s3>
<sZ>25 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>Los Alamos, NM 87545</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Dixson, J" sort="Dixson, J" uniqKey="Dixson J" first="J." last="Dixson">J. Dixson</name>
<affiliation wicri:level="1"><inist:fA14 i1="07"><s1>Department of Astronomy, University of Texas</s1>
<s2>Austin, TX 78712</s2>
<s3>USA</s3>
<sZ>9 aut.</sZ>
<sZ>22 aut.</sZ>
<sZ>26 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>Austin, TX 78712</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Provencal, J" sort="Provencal, J" uniqKey="Provencal J" first="J." last="Provencal">J. Provencal</name>
<affiliation wicri:level="1"><inist:fA14 i1="21"><s1>Department of Physics and Astronomy, University of Delaware, 223 Sharp Laboratory</s1>
<s2>Newark, DE 19716</s2>
<s3>USA</s3>
<sZ>27 aut.</sZ>
</inist:fA14>
<country>États-Unis</country>
<wicri:noRegion>Newark, DE 19716</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Bedding, T R" sort="Bedding, T R" uniqKey="Bedding T" first="T. R." last="Bedding">T. R. Bedding</name>
<affiliation wicri:level="4"><inist:fA14 i1="02"><s1>School of Physics, University of Sydney</s1>
<s2>Sydney NSW</s2>
<s3>AUS</s3>
<sZ>4 aut.</sZ>
<sZ>5 aut.</sZ>
<sZ>28 aut.</sZ>
</inist:fA14>
<country>Australie</country>
<placeName><settlement type="city">Sydney</settlement>
<region type="état">Nouvelle-Galles du Sud</region>
</placeName>
<orgName type="university">Université de Sydney</orgName>
</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="2004">2004</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>Astroseismology</term>
<term>Dwarf stars</term>
<term>Mass spectroscopy</term>
<term>Models</term>
<term>Oscillation frequency</term>
<term>Photometry</term>
<term>Pulsating variable stars</term>
<term>Stellar evolution</term>
<term>Time-series analysis</term>
<term>White dwarf stars</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Etoile variable pulsante</term>
<term>Analyse série temporelle</term>
<term>Photométrie</term>
<term>Fréquence oscillation</term>
<term>Modèle</term>
<term>Astéroséismologie</term>
<term>Spectrométrie masse</term>
<term>Evolution stellaire</term>
<term>Etoile naine</term>
<term>Naine blanche</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">We report on the analysis of multisite time-series photometry of the pulsating pre-white dwarf (GW Vir star) PG 1707+427, obtained by the Whole Earth Telescope collaboration. This is the last of the known GW Vir stars without surrounding nebulae to be resolved by multisite data. Successful resolution of the pulsation spectrum resulted from the combination of high signal-to-noise observations with a large telescope and wide coverage in longitude with smaller telescopes. We find a series of 8 pulsation frequencies (along with two nonlinear combination frequencies), and identify 7 of them as part of a sequence of  = 1 modes, with a common period spacing of 23.0 s. This spacing implies that the mass of PG 1707+427 is 0.57 M<sub>◦.</sub>
. Preliminary model fits suggest that the mass determined via asteroseismology is consistent with the mass determined from spectroscopy combined with evolutionary tracks.</div>
</front>
</TEI>
<affiliations><list><country><li>Allemagne</li>
<li>Australie</li>
<li>Brésil</li>
<li>Canada</li>
<li>Espagne</li>
<li>France</li>
<li>Pologne</li>
<li>Royaume-Uni</li>
<li>États-Unis</li>
</country>
<region><li>Iowa</li>
<li>Midi-Pyrénées</li>
<li>Nouvelle-Galles du Sud</li>
<li>Occitanie (région administrative)</li>
<li>Rio Grande do Sul</li>
<li>Île-de-France</li>
</region>
<settlement><li>Ames (Iowa)</li>
<li>Meudon</li>
<li>Sydney</li>
<li>Toulouse</li>
</settlement>
<orgName><li>Université Toulouse III - Paul Sabatier</li>
<li>Université d'État de l'Iowa</li>
<li>Université de Sydney</li>
</orgName>
</list>
<tree><country name="États-Unis"><region name="Iowa"><name sortKey="Kawaler, S D" sort="Kawaler, S D" uniqKey="Kawaler S" first="S. D." last="Kawaler">S. D. Kawaler</name>
</region>
<name sortKey="Bradley, P A" sort="Bradley, P A" uniqKey="Bradley P" first="P. A." last="Bradley">P. A. Bradley</name>
<name sortKey="Claver, C F" sort="Claver, C F" uniqKey="Claver C" first="C. F." last="Claver">C. F. Claver</name>
<name sortKey="Clemens, J C" sort="Clemens, J C" uniqKey="Clemens J" first="J. C." last="Clemens">J. C. Clemens</name>
<name sortKey="Dixson, J" sort="Dixson, J" uniqKey="Dixson J" first="J." last="Dixson">J. Dixson</name>
<name sortKey="Grauer, A D" sort="Grauer, A D" uniqKey="Grauer A" first="A. D." last="Grauer">A. D. Grauer</name>
<name sortKey="Kleinman, S J" sort="Kleinman, S J" uniqKey="Kleinman S" first="S. J." last="Kleinman">S. J. Kleinman</name>
<name sortKey="Nather, R E" sort="Nather, R E" uniqKey="Nather R" first="R. E." last="Nather">R. E. Nather</name>
<name sortKey="O Brien, M S" sort="O Brien, M S" uniqKey="O Brien M" first="M. S." last="O'Brien">M. S. O'Brien</name>
<name sortKey="Potter, E M" sort="Potter, E M" uniqKey="Potter E" first="E. M." last="Potter">E. M. Potter</name>
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<name sortKey="Vuckovic, M" sort="Vuckovic, M" uniqKey="Vuckovic M" first="M." last="Vuckovic">M. Vuckovic</name>
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	Serveur d'exploration sur les relations entre la France et l'Australie
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Serveur d'exploration sur les relations entre la France et l'Australie

Whole Earth Telescope observations of the pulsating hot white dwarf PG 1707+427

Whole Earth Telescope observations of the pulsating hot white dwarf PG 1707+427

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