cosmic web and galaxy filaments - kiashome.kias.re.kr/mkg/upload/cosmology2016/talk file... ·...
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![Page 1: Cosmic web and galaxy filaments - KIAShome.kias.re.kr/MKG/upload/cosmology2016/talk file... · Cosmic web and galaxy filaments Elmo Tempel Leibniz-Institut für Astrophysik Potsdam](https://reader035.vdocuments.net/reader035/viewer/2022071002/5fbe7a37e12ffa490c05b74f/html5/thumbnails/1.jpg)
Cosmic web and galaxy filaments ElmoTempel
Leibniz-InstitutfürAstrophysikPotsdam(AIP),GermanyTartuObservatory,Estonia
KIAS2016
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Luminosity density field in the SDSS
Courtesy:JuhanLiivamägi
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Observations: selection effects
Tempeletal.(2012,2014) Liivamägi,Tempel,Saar(2012)
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Observations: redshift space distortions
Tempeletal.(2012,2014,2016)
Usingfriends-of-friendsgalaxygroups,
wesuppressthefingers-of-Goddistortions.
Courtesy:Tullyetal.2014,Nature,513,71
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Friends-of-Friends + multi-modal analysis
Tempeletal.(2016)
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Local Universe (2MRS data)
2016,A&A,588,A14
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FoF groups vs Tully groupsTempeletal.2016,A&A,588,A14
TullyR.Brent,2015,ApJ,149,171
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Bisous model —detecting filamentary
patterns in point processes
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Detected filamentary pattern
Courtesy:JuhanLiivamägi
Tempeletal.(2014)
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Bisous model in action
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Detected filament spines
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Bisous model - publications:2013,“Evidenceforspinalignmentofspiralandelliptical/S0galaxiesinfilaments”,(TempelE.,StoicaR.S.,SaarE.;MNRAS,428,1827)
2013,“GalaxySpinAlignmentinFilamentsandSheets:ObservationalEvidence”(TempelE.,LibeskindN.I.;ApJL,775,42)
2014,“Orientationofcosmicwebfilamentswithrespecttotheunderlyingvelocityfield”(TempelE.,LibeskindN.I.,HoffmanY.,LiivamägiL.J.,TammA.;MNRAS,437,L11)
2014,“Detectingfilamentarypatterninthecosmicweb:acatalogueoffilamentsfortheSDSS”(TempelE.,StoicaR.S.,MartínezV.J.,LiivamägiL.J.,CastellanG.,SaarE.;MNRAS,438,3465)
2014,“Galaxyfilamentsaspearlnecklaces”(TempelE.,KipperR.,SaarE.,BussovM.,HektorA.,PeltJ.;A&A,572,A8)
2015,“GalaxiesinFilamentshaveMoreSatellites:TheInfluenceoftheCosmicWebontheSatelliteLuminosityFunctionintheSDSS”(GuoQ.,TempelE.,LibeskindN.I.;ApJ,800,112)
2015,“GalaxypairsalignwithGalacticfilaments”(TempelE.,TammA.;A&A,576,L5)
2015,“Thealignmentofsatellitegalaxiesandcosmicfilaments:observationsandsimulations”(TempelE.,GuoQ.,KipperR.,LibeskindN.I.;MNRAS,450,2727)
2015,“Missingbaryonstracedbythegalaxyluminositydensityinthelarge-scaleWHIMfilaments”(NevalainenJ.,TempelE.,LiivamägiL.J.etal.;A&A,538,A142)
2015,“Filamentsfromthegalaxydistributionandfromthevelocityfieldinthelocaluniverse”(LibeskindN.I.,TempelE.,HoffmanY.,TullyR.B.,CourtoisH.;MNRAS,453,L108)
2016,“ApossibleChandraandHubbleSpaceTelescopedetectionofextragalacticWHIMtowardsPG1116+215”(BonamenteM.,NevalainenJ.,TiltonE.,LiivamägiJ.,TempelE.,HeinämäkiP.,FangT.;MNRAS,457,4236)
2016,“Thealignmentofgalaxyspinwiththeshearfieldinobservations”(PahwaI.,LibeskindN.I.,TempelE.etal.;MNRAS,457,695)
2016,“Bisousmodel-Detectingfilamentarypatternsinpointprocesses”(TempelE.,StoicaR.S.,KipperR,SaarE.;A&C,16,17)
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Orientation of cosmic web filaments with respect to the underlying velocity field
Tempel,Libeskind,Hoffmannetal.(2014)
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Filaments from the galaxy distribution and from the velocity field in the local universe
Libeskind,Tempel,Hoffman,Tully,Courtois(2015)
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FilamentsintheSDSS
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The alignment of galaxies
in filaments
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Galaxies in filaments have more satellites: the influence of the cosmic web on the satellite luminosity function in the SDSS
Guo,Tempel&Libeskind(2015)
Satelliteluminositywithrespecttocentralgalaxy
Num
berofsatellites
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The alignment of satellite galaxies and cosmic filaments: observations and simulations
Tempel,Guo,Kipper,Libeskind(2015)
Anglebetweenthesatellitepositionandfilamentaxis
SDSSobservations Millenniumsimulation
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Galaxy Spin Alignment in Filaments: Observational Evidence
Tempel&Libeskind(2013);Tempel,Stoica&Saar(2013)
SpiralgalaxiesEllipticalgalaxies
Innerpart
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Galaxy pairs align with galactic filaments Tempel&Tamm(2015)
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Conclusions
Galaxy filaments have a measurable effect on the evolution of galaxies
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Mysterious object
Thank you!