Density and temperature determination of neutral hydrogen in coronal structures
Identifieur interne : 000406 ( Istex/Corpus ); précédent : 000405; suivant : 000407Density and temperature determination of neutral hydrogen in coronal structures
Auteurs : R. M. Bonnet ; G. TsiropoulaSource :
- Solar Physics [ 0038-0938 ] ; 1982-01-01.
Abstract
Abstract: High-resolution filtergrams in Lα have been obtained with a rocket borne instrument and evidence several loop shaped structures which can be seen as absorption features over the solar surface. The optical thickness of these coronal structures is measured with respect to nearby unabsorbed disk features. Their shape and dimension being known from the images, the determination of the neutral hydrogen temperature and density is possible. It is found that temperatures below 105 K and densities of a few 104 hydrogen atoms cm−3 are compatible with the opacities observed in the structures.
Url:
DOI: 10.1007/BF00153467
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<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Density and temperature determination of neutral hydrogen in coronal structures</title><author><name sortKey="Bonnet, R M" sort="Bonnet, R M" uniqKey="Bonnet R" first="R. M." last="Bonnet">R. M. Bonnet</name><affiliation><mods:affiliation>Laboratoire de Physique Stellaire et Planétaire, B.P. 10, 91370, Verrières-le-Buisson, France</mods:affiliation></affiliation></author><author><name sortKey="Tsiropoula, G" sort="Tsiropoula, G" uniqKey="Tsiropoula G" first="G." last="Tsiropoula">G. Tsiropoula</name><affiliation><mods:affiliation>Athens National Observatory, Astronomy Institute, 306, Athens, Greece</mods:affiliation></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:B0EFEEA2E4A3F94D5B95181D7BD3E547A16D7C4F</idno><date when="1982" year="1982">1982</date><idno type="doi">10.1007/BF00153467</idno><idno type="url">https://api.istex.fr/document/B0EFEEA2E4A3F94D5B95181D7BD3E547A16D7C4F/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000406</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000406</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Density and temperature determination of neutral hydrogen in coronal structures</title><author><name sortKey="Bonnet, R M" sort="Bonnet, R M" uniqKey="Bonnet R" first="R. M." last="Bonnet">R. M. Bonnet</name><affiliation><mods:affiliation>Laboratoire de Physique Stellaire et Planétaire, B.P. 10, 91370, Verrières-le-Buisson, France</mods:affiliation></affiliation></author><author><name sortKey="Tsiropoula, G" sort="Tsiropoula, G" uniqKey="Tsiropoula G" first="G." last="Tsiropoula">G. Tsiropoula</name><affiliation><mods:affiliation>Athens National Observatory, Astronomy Institute, 306, Athens, Greece</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">Solar Physics</title><title level="j" type="sub">A Journal for Solar and Solar-Stellar Research and the Study of Solar Terrestrial Physics</title><title level="j" type="abbrev">Sol Phys</title><idno type="ISSN">0038-0938</idno><idno type="eISSN">1573-093X</idno><imprint><publisher>Kluwer Academic Publishers</publisher><pubPlace>Dordrecht</pubPlace><date type="published" when="1982-01-01">1982-01-01</date><biblScope unit="volume">75</biblScope><biblScope unit="issue">1-2</biblScope><biblScope unit="page" from="139">139</biblScope><biblScope unit="page" to="143">143</biblScope></imprint><idno type="ISSN">0038-0938</idno></series><idno type="istex">B0EFEEA2E4A3F94D5B95181D7BD3E547A16D7C4F</idno><idno type="DOI">10.1007/BF00153467</idno><idno type="ArticleID">BF00153467</idno><idno type="ArticleID">Art12</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0038-0938</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Abstract: High-resolution filtergrams in Lα have been obtained with a rocket borne instrument and evidence several loop shaped structures which can be seen as absorption features over the solar surface. The optical thickness of these coronal structures is measured with respect to nearby unabsorbed disk features. Their shape and dimension being known from the images, the determination of the neutral hydrogen temperature and density is possible. It is found that temperatures below 105 K and densities of a few 104 hydrogen atoms cm−3 are compatible with the opacities observed in the structures.</div></front></TEI><istex><corpusName>springer</corpusName><author><json:item><name>R. M. Bonnet</name><affiliations><json:string>Laboratoire de Physique Stellaire et Planétaire, B.P. 10, 91370, Verrières-le-Buisson, France</json:string></affiliations></json:item><json:item><name>G. Tsiropoula</name><affiliations><json:string>Athens National Observatory, Astronomy Institute, 306, Athens, Greece</json:string></affiliations></json:item></author><articleId><json:string>BF00153467</json:string><json:string>Art12</json:string></articleId><language><json:string>eng</json:string></language><originalGenre><json:string>OriginalPaper</json:string></originalGenre><abstract>Abstract: High-resolution filtergrams in Lα have been obtained with a rocket borne instrument and evidence several loop shaped structures which can be seen as absorption features over the solar surface. The optical thickness of these coronal structures is measured with respect to nearby unabsorbed disk features. Their shape and dimension being known from the images, the determination of the neutral hydrogen temperature and density is possible. It is found that temperatures below 105 K and densities of a few 104 hydrogen atoms cm−3 are compatible with the opacities observed in the structures.</abstract><qualityIndicators><score>3.34</score><pdfVersion>1.3</pdfVersion><pdfPageSize>468 x 684 pts</pdfPageSize><refBibsNative>false</refBibsNative><keywordCount>0</keywordCount><abstractCharCount>598</abstractCharCount><pdfWordCount>2236</pdfWordCount><pdfCharCount>6021</pdfCharCount><pdfPageCount>5</pdfPageCount><abstractWordCount>92</abstractWordCount></qualityIndicators><title>Density and temperature determination of neutral hydrogen in coronal structures</title><refBibs><json:item><author><json:item><name>R,M Bonnet</name></json:item><json:item><name>P Lemaire</name></json:item><json:item><name>J,C Vial</name></json:item><json:item><name>G Artzner</name></json:item><json:item><name>P Gouttebroze</name></json:item><json:item><name>A Jouchoux</name></json:item><json:item><name>J,W Leibacher</name></json:item><json:item><name>A Skumanich</name></json:item><json:item><name>A Vidal-Madjar</name></json:item></author><host><volume>221</volume><pages><first>1032</first></pages><author></author><title>Astrophys. J</title><publicationDate>1978</publicationDate></host><publicationDate>1978</publicationDate></json:item><json:item><author><json:item><name>R,M Bonnet</name></json:item><json:item><name>E,C Bruner</name></json:item><json:item><name>L,W Acton</name></json:item><json:item><name>W,A Brown</name></json:item><json:item><name>M Decaudin</name></json:item></author><host><volume>237</volume><pages><first>47</first></pages><author></author><title>Astrophys. J</title><publicationDate>1980</publicationDate></host><publicationDate>1980</publicationDate></json:item><json:item><host><author><json:item><name>P,V Foukal</name></json:item></author><title>Preprint, The C I Opacity and Physical Structure of Cool Very Dense Plasma in the Solar Corona</title><publicationDate>1981</publicationDate></host></json:item><json:item><author><json:item><name>A Gabriel</name></json:item><json:item><name>W Garton</name></json:item><json:item><name>R,S Goldberg</name></json:item><json:item><name>L Jones</name></json:item><json:item><name>T,J L Jordan</name></json:item><json:item><name>C Morgan</name></json:item><json:item><name>F,J Nicholls</name></json:item><json:item><name>R,W Parkinson</name></json:item><json:item><name>W,J Paxton</name></json:item><json:item><name>H,J B Reeves</name></json:item><json:item><name>E,M Shenton</name></json:item><json:item><name>C,B Speer</name></json:item><json:item><name>R,J Wilson</name></json:item><json:item><name>R </name></json:item></author><host><volume>169</volume><pages><first>595</first></pages><author></author><title>Astrophys. 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Reidel Publishing Company, 1982</p></availability><date>1981-01-07</date></publicationStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a" type="main" xml:lang="en">Density and temperature determination of neutral hydrogen in coronal structures</title><author xml:id="author-1"><persName><forename type="first">R.</forename><surname>Bonnet</surname></persName><affiliation>Laboratoire de Physique Stellaire et Planétaire, B.P. 10, 91370, Verrières-le-Buisson, France</affiliation></author><author xml:id="author-2"><persName><forename type="first">G.</forename><surname>Tsiropoula</surname></persName><affiliation>Athens National Observatory, Astronomy Institute, 306, Athens, Greece</affiliation></author></analytic><monogr><title level="j">Solar Physics</title><title level="j" type="sub">A Journal for Solar and Solar-Stellar Research and the Study of Solar Terrestrial Physics</title><title level="j" type="abbrev">Sol Phys</title><idno type="journal-ID">11207</idno><idno type="pISSN">0038-0938</idno><idno type="eISSN">1573-093X</idno><idno type="issue-article-count">30</idno><idno type="volume-issue-count">2</idno><imprint><publisher>Kluwer Academic Publishers</publisher><pubPlace>Dordrecht</pubPlace><date type="published" when="1982-01-01"></date><biblScope unit="volume">75</biblScope><biblScope unit="issue">1-2</biblScope><biblScope unit="page" from="139">139</biblScope><biblScope unit="page" to="143">143</biblScope></imprint></monogr><idno type="istex">B0EFEEA2E4A3F94D5B95181D7BD3E547A16D7C4F</idno><idno type="DOI">10.1007/BF00153467</idno><idno type="ArticleID">BF00153467</idno><idno type="ArticleID">Art12</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>1981-01-07</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>Abstract: High-resolution filtergrams in Lα have been obtained with a rocket borne instrument and evidence several loop shaped structures which can be seen as absorption features over the solar surface. The optical thickness of these coronal structures is measured with respect to nearby unabsorbed disk features. Their shape and dimension being known from the images, the determination of the neutral hydrogen temperature and density is possible. It is found that temperatures below 105 K and densities of a few 104 hydrogen atoms cm−3 are compatible with the opacities observed in the structures.</p></abstract><textClass><keywords scheme="Journal Subject"><list><head>Physics</head><item><term>Astrophysics</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="1981-01-07">Created</change><change when="1982-01-01">Published</change><change xml:id="refBibs-istex" who="#ISTEX-API" when="2016-11-22">References added</change><change xml:id="refBibs-istex" who="#ISTEX-API" when="2017-01-20">References added</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/B0EFEEA2E4A3F94D5B95181D7BD3E547A16D7C4F/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Springer, Publisher found" wicri:toSee="no header"><istex:xmlDeclaration>version="1.0" encoding="UTF-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//Springer-Verlag//DTD A++ V2.4//EN" URI="http://devel.springer.de/A++/V2.4/DTD/A++V2.4.dtd" name="istex:docType"></istex:docType><istex:document><Publisher><PublisherInfo><PublisherName>Kluwer Academic Publishers</PublisherName><PublisherLocation>Dordrecht</PublisherLocation></PublisherInfo><Journal><JournalInfo JournalProductType="ArchiveJournal" NumberingStyle="Unnumbered"><JournalID>11207</JournalID><JournalPrintISSN>0038-0938</JournalPrintISSN><JournalElectronicISSN>1573-093X</JournalElectronicISSN><JournalTitle>Solar Physics</JournalTitle><JournalSubTitle>A Journal for Solar and Solar-Stellar Research and the Study of Solar Terrestrial Physics</JournalSubTitle><JournalAbbreviatedTitle>Sol Phys</JournalAbbreviatedTitle><JournalSubjectGroup><JournalSubject Type="Primary">Physics</JournalSubject><JournalSubject Type="Secondary">Astrophysics</JournalSubject></JournalSubjectGroup></JournalInfo><Volume><VolumeInfo VolumeType="Regular" TocLevels="0"><VolumeIDStart>75</VolumeIDStart><VolumeIDEnd>75</VolumeIDEnd><VolumeIssueCount>2</VolumeIssueCount></VolumeInfo><Issue IssueType="Combined"><IssueInfo TocLevels="0"><IssueIDStart>1</IssueIDStart><IssueIDEnd>2</IssueIDEnd><IssueArticleCount>30</IssueArticleCount><IssueHistory><CoverDate><Year>1982</Year><Month>1</Month></CoverDate></IssueHistory><IssueCopyright><CopyrightHolderName>D. Reidel Publishing Company</CopyrightHolderName><CopyrightYear>1982</CopyrightYear></IssueCopyright></IssueInfo><Article ID="Art12"><ArticleInfo Language="En" ArticleType="OriginalPaper" NumberingStyle="Unnumbered" TocLevels="0" ContainsESM="No"><ArticleID>BF00153467</ArticleID><ArticleDOI>10.1007/BF00153467</ArticleDOI><ArticleSequenceNumber>12</ArticleSequenceNumber><ArticleTitle Language="En">Density and temperature determination of neutral hydrogen in coronal structures</ArticleTitle><ArticleFirstPage>139</ArticleFirstPage><ArticleLastPage>143</ArticleLastPage><ArticleHistory><RegistrationDate><Year>2004</Year><Month>6</Month><Day>21</Day></RegistrationDate><Received><Year>1981</Year><Month>1</Month><Day>7</Day></Received></ArticleHistory><ArticleCopyright><CopyrightHolderName>D. Reidel Publishing Company</CopyrightHolderName><CopyrightYear>1982</CopyrightYear></ArticleCopyright><ArticleGrants Type="Regular"><MetadataGrant Grant="OpenAccess"></MetadataGrant><AbstractGrant Grant="OpenAccess"></AbstractGrant><BodyPDFGrant Grant="Restricted"></BodyPDFGrant><BodyHTMLGrant Grant="Restricted"></BodyHTMLGrant><BibliographyGrant Grant="Restricted"></BibliographyGrant><ESMGrant Grant="Restricted"></ESMGrant></ArticleGrants><ArticleContext><JournalID>11207</JournalID><VolumeIDStart>75</VolumeIDStart><VolumeIDEnd>75</VolumeIDEnd><IssueIDStart>1</IssueIDStart><IssueIDEnd>2</IssueIDEnd></ArticleContext></ArticleInfo><ArticleHeader><AuthorGroup><Author AffiliationIDS="Aff1"><AuthorName DisplayOrder="Western"><GivenName>R.</GivenName><GivenName>M.</GivenName><FamilyName>Bonnet</FamilyName></AuthorName></Author><Author AffiliationIDS="Aff2"><AuthorName DisplayOrder="Western"><GivenName>G.</GivenName><FamilyName>Tsiropoula</FamilyName></AuthorName></Author><Affiliation ID="Aff1"><OrgName>Laboratoire de Physique Stellaire et Planétaire</OrgName><OrgAddress><Street>B.P. 10</Street><Postcode>91370</Postcode><City>Verrières-le-Buisson</City><Country>France</Country></OrgAddress></Affiliation><Affiliation ID="Aff2"><OrgName>Athens National Observatory, Astronomy Institute</OrgName><OrgAddress><Postcode>306</Postcode><City>Athens</City><Country>Greece</Country></OrgAddress></Affiliation></AuthorGroup><Abstract ID="Abs1" Language="En"><Heading>Abstract</Heading><Para>High-resolution filtergrams in Lα have been obtained with a rocket borne instrument and evidence several loop shaped structures which can be seen as absorption features over the solar surface. The optical thickness of these coronal structures is measured with respect to nearby unabsorbed disk features. Their shape and dimension being known from the images, the determination of the neutral hydrogen temperature and density is possible. It is found that temperatures below 10<Superscript>5</Superscript> K and densities of a few 10<Superscript>4</Superscript> hydrogen atoms cm<Superscript>−3</Superscript> are compatible with the opacities observed in the structures.</Para></Abstract></ArticleHeader><NoBody></NoBody></Article></Issue></Volume></Journal></Publisher></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Density and temperature determination of neutral hydrogen in coronal structures</title></titleInfo><titleInfo type="alternative" contentType="CDATA" lang="en"><title>Density and temperature determination of neutral hydrogen in coronal structures</title></titleInfo><name type="personal"><namePart type="given">R.</namePart><namePart type="given">M.</namePart><namePart type="family">Bonnet</namePart><affiliation>Laboratoire de Physique Stellaire et Planétaire, B.P. 10, 91370, Verrières-le-Buisson, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">G.</namePart><namePart type="family">Tsiropoula</namePart><affiliation>Athens National Observatory, Astronomy Institute, 306, Athens, Greece</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="OriginalPaper"></genre><originInfo><publisher>Kluwer Academic Publishers</publisher><place><placeTerm type="text">Dordrecht</placeTerm></place><dateCreated encoding="w3cdtf">1981-01-07</dateCreated><dateIssued encoding="w3cdtf">1982-01-01</dateIssued><copyrightDate encoding="w3cdtf">1982</copyrightDate></originInfo><language><languageTerm type="code" authority="rfc3066">en</languageTerm><languageTerm type="code" authority="iso639-2b">eng</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="en">Abstract: High-resolution filtergrams in Lα have been obtained with a rocket borne instrument and evidence several loop shaped structures which can be seen as absorption features over the solar surface. The optical thickness of these coronal structures is measured with respect to nearby unabsorbed disk features. Their shape and dimension being known from the images, the determination of the neutral hydrogen temperature and density is possible. It is found that temperatures below 105 K and densities of a few 104 hydrogen atoms cm−3 are compatible with the opacities observed in the structures.</abstract><relatedItem type="host"><titleInfo><title>Solar Physics</title><subTitle>A Journal for Solar and Solar-Stellar Research and the Study of Solar Terrestrial Physics</subTitle></titleInfo><titleInfo type="abbreviated"><title>Sol Phys</title></titleInfo><genre type="journal" displayLabel="Archive Journal"></genre><originInfo><dateIssued encoding="w3cdtf">1982-01-01</dateIssued><copyrightDate encoding="w3cdtf">1982</copyrightDate></originInfo><subject><genre>Physics</genre><topic>Astrophysics</topic></subject><identifier type="ISSN">0038-0938</identifier><identifier type="eISSN">1573-093X</identifier><identifier type="JournalID">11207</identifier><identifier type="IssueArticleCount">30</identifier><identifier type="VolumeIssueCount">2</identifier><part><date>1982</date><detail type="volume"><number>75</number><caption>vol.</caption></detail><detail type="issue"><number>1-2</number><caption>no.</caption></detail><extent unit="pages"><start>139</start><end>143</end></extent></part><recordInfo><recordOrigin>D. Reidel Publishing Company, 1982</recordOrigin></recordInfo></relatedItem><identifier type="istex">B0EFEEA2E4A3F94D5B95181D7BD3E547A16D7C4F</identifier><identifier type="DOI">10.1007/BF00153467</identifier><identifier type="ArticleID">BF00153467</identifier><identifier type="ArticleID">Art12</identifier><accessCondition type="use and reproduction" contentType="copyright">D. Reidel Publishing Company, 1982</accessCondition><recordInfo><recordContentSource>SPRINGER</recordContentSource><recordOrigin>D. Reidel Publishing Company, 1982</recordOrigin></recordInfo></mods></metadata><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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