Astrotomography: Indirect Imaging Methods in Observational Astronomy - Couverture rigide

Couverture rigide

ISBN 10 : 3540422137 ISBN 13 : 9783540422136

Editeur : Springer-Verlag Berlin and Heidelberg GmbH & Co. K, 2001

Synopsis

TheideaforthisbookoriginatedintheLaSillaobservatorywheretwoofthe editorsweredoingphase-resolvedspectroscopyofsomecataclysmicvariable starsusingtheNTT. Werealizedthatalthoughindirectimagingtechniques suchaseclipsemappingandDopplertomographyhadbeenaroundformore thanadecadeandhadprovidedsomeofthemostinterestingdiscoveries, no bookexistedwhichcoveredthesetechniques. Moreover, nocolloquiumhadever beenorganizedspeci?callyonthesetopics. Theimplementationoftomographic methodsinastrophysics, inordertoprobestructuresonangularscalesofmic- arcseconds, startedabout15yearsagowiththedevelopmentoftheeclipsem- pingmethod. Thismethodisabletoreconstructlightdistributionsineclipsing binariesbyexploitingtheregularobscurationofthelightsourcebyoneofthe binarycomponents. Asimilarapproachtoregulariseddata?ttingleadtoa- rietyofrelatedmethodsinordertoresolvelightdistributionsoftheaccretion ?owsinbinaries, thesurfacestructuresofstarsandtheinnerregionsofactive galaxies. Thescienti?coutputofthesemethodsisconsiderableandtheyare increasinglybecomingversatiletoolsforawidecommunityofresearchers. Aspecialisedworkshopseemedhighlydesirable, sowedecidedtoorganise the?rstinternationalworkshoponastrotomography. Theideaofthemeeting, whichtookplaceinBrusselsinearlyJuly2000, wastobringtogetherresearchers sharinganinterestinapplyingindirectimagingmethodsinastronomy, andto comparethemethodsusedindi?erent?elds. Duringthemeeting, alargeamount oftimewasdevotedtoextensivereviewsofthevariousreconstructiontechniques. Inconjunctionwiththereviews, shortcontributedtalkshighlightedrecent- sultsanddevelopments. Duetothesmallnumberofparticipants,60, therewas plentyofopportunityfordiscussionandinteraction. Moreover, wewantedthat theproceedingsofthismeetingcouldbeusedasahandbookonthesemethods. Thereviewerswerethereforeaskedtoprovideextensiveaccountsoftheir?eld. Theproceedingsthusconsistof13reviewsofabout25pageseachaswellas 15contributedtalksof6?8pages. Awiderangeoftopicsarediscussed, mostly onthepropertiesofaccretion?owsinsemi-detachedbinarysystemsconta- ingacompactstellarremnant. Othertopicsincludethesurfaceandmagnetic ?eldstructureofsinglestars, theshockwavesofMirastars, theaccretion?ows aroundblackholesinbinariesandactivegalacticnucleiandthestructureof Algolsystems. Thelargevarietyofsubjectscoveredisaclearillustrationofthe importancethatindirectimagingtechniqueshavegainedinastrophysics. Anew VI generationofopticaltelescopesandspectrographsiscomingon-linewhichwill pushthepossibilitiesofindirectimagingevenfurther. Inconjunctionwiththat, specialisedinstrumentsandprojectsonexistingtelescopeswilldeliverdatasets withhightimeandwavelengthresolutionstailoredforaccuratemapping- periments. Wehopethattheseproceedingswillprovideahelpfuloverviewfor anyresearcherinterestedinsuchtechniques. Withthesamespiritofproducing morethanjustproceedings, wealsoincludealistofsomeusefulresourceson theInternet. Wealsohopethatthewebpageoftheworkshopwillbekeptalive andbecomeausefulreferenceonastrotomography. Wewouldliketothankalltheparticipantsformakingthisworkshopas- cess, andinparticularallthecontributingreviewauthorsforhavinggenerously agreedtocometothemeetingattheirownexpense, andfortheire?ortsin providingabalancedsetofreviewpapers. Manythankstoallthemembersof thelocalorganisingcommitteeforthehardworkbefore, duringandafterthe workshop. TheBrusselsPlanetariumisthankedforprovidinguswithameeting venueandexcellentsupport. WealsowishtothanktheDirectoroftheRoyal ObservatoryofBelgium, Prof. PaulP aquet, forhise?orts. RobHynesprovided uswithasuperb scienti?cimpression ofaninteractingbinarythatfeaturedon theworkshopposterandvariousotherlocations. Finally, wearegratefulfo- nancialsupportfromprojectG. 0265. 97oftheResearchProgrammeoftheFund forScienti?cResearch Flanders(F. W. O. Vlaanderen). Brussels, Southampton, HenriBo?n, November2000 DannySteeghs, JanCuypers Workshopwebpage: http: //www. astro. oma. be/DopplerWorkshop/ Contents DopplerTomography T. R. Marsh. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 MappingthePeculiarBinaryGPCom L. Morales-Rueda, T. R. Marsh, R. C. North. . . . . . . . . . . . . . . . . . . . . . . . . . . 27 H?-EmissionDopplerTomography ofLong-PeriodCataclysmicVariableStars R. C. North, T. R. Marsh, C. K. J. Moran, U. Kolb, R. C. Smith, R. Stehle. . 33 DopplerTomographyoftheDwarfNovaIYUMa duringQuiescence D. J. Rolfe, T. M. C. Abbott, C. A. Haswell. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39 SpiralWavesinAccretionDiscs Observations D. Steeghs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45 SpiralWavesinAccretionDiscs Theory H. M. J. Bo?n. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 SpiralShocksinanInviscidSimulationofAccretionFlow inaCloseBinarySystem M. Makita, H. Fujiwara, T. Matsuda, H. M. J. Bo?n. . . . . . . . . . . . . . . . . . . . 88 ImagingtheSecondaryStarsinCataclysmicVariables V. S. Dhillon, C. A. Watson. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94 StatisticsofIsolatedEmissionSourcesinCataclysmicVariables C. Tappert, R. Hanuschik. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119 TomographyofPolars A. Schwope. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127 TomographyofMagneticAccretionFlows G. Wynn. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 VIII Contents TheGeometricalCon?gurationofPolars andPossibleReconstructionArtefacts ofEclipseMappingMethods J. Kube. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175 SpotMappinginCoolStars A. CollierCameron. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183 ImagingtheMagneticTopologiesofCoolActiveStars J. -F. Donati. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207 Di?erentialRotationofCloseBinaryStars: ApplicationtoHR1099 P. Petit, J. -F. Donati, G. A. Wade, J. D. Landstreet, J. M. Oliveira, S. L. S. Shorlin, T. A. A. Sigut, A. C. Cameron. . . . . . . . . . . . . . . . . . . . . . . . . . 232 MagneticDopplerImagingofChemicallyPeculiarStars N. Piskunov, O. Kochukhov. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238 StokesImagingoftheAccretionRegion inMagneticCataclysmicVariables S. Potter, E. Romero-Colmenero, D. A. H. Buckley, M. Cropper, P. Hakala. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244 DopplerImagesoftheMDwarfRE1816+541 J. R. Barnes, A. CollierCameron. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 252 TheMethodofSpectraDisentangling andItsLinkstoDopplerTomography P. Hadrava. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Détails de l'édition

• Éditeur: Springer-Verlag Berlin and Heidelberg GmbH & Co. K
• Date d'édition: 2001
• Langue: anglais
• ISBN 10: 3540422137
• ISBN 13: 9783540422136
• Reliure: Relié
• Nombre de pages: 454
• Éditeur: Boffin H.M.J., Steeghs D., Cuypers J.
• Coordonnées du fabricant: ProductSafety@springernature.com; ProductSafety@springernature.com; ; Poststr. 9; Darmstadt; 64293; Allemagne