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Introduction Quantify environments Intra-group physical processes
Thesis presentationA new level of modelling of environmental effects on galaxies
Manuel DUARTE
Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
February 13, 2013
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
1 Introduction
2 Quantify environmentsWhy?Galaxy group algorithmTests on mock catalogsComparisonsResultsFuture
3 Intra-group physical processesPhysical processesModel ram pressure strippingLacks in semi-analytical codes (SAC)
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Introduction
Thesis goal
Detailed understanding of the role of the environment on theproperties of galaxies.
Organization
Two parts :
1 Quantify environments
2 Physical intra-group processes
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Introduction
Thesis goal
Detailed understanding of the role of the environment on theproperties of galaxies.
Organization
Two parts :
1 Quantify environments
2 Physical intra-group processes
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Why?
Quantify environmentsWhy?
1 Galaxies reside in differentenvironments.
2 Previous studies:environment has little effecton galaxies.
3 Consequence of a badquantification ?
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Why?
Quantify environmentsWhy?
1 Galaxies reside in differentenvironments.
2 Previous studies:environment has little effecton galaxies.
3 Consequence of a badquantification ?
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Why?
Quantify environmentsWhy?
1 Galaxies reside in differentenvironments.
2 Previous studies:environment has little effecton galaxies.
3 Consequence of a badquantification ?
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Galaxy group algorithm
Quantify environmentsGalaxy group algorithm
Optimal algorithm
1 Avoid interlopers influenceon statistics.
2 Probabilistic approach.
3 MAGGIE (Models andAlgorithm for GalaxyGroups, Interlopers andEnvironment)
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Galaxy group algorithm
Quantify environmentsGalaxy group algorithm
Optimal algorithm
1 Avoid interlopers influenceon statistics.
2 Probabilistic approach.
3 MAGGIE (Models andAlgorithm for GalaxyGroups, Interlopers andEnvironment)
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Galaxy group algorithm
Quantify environmentsGalaxy group algorithm
Optimal algorithm
1 Avoid interlopers influenceon statistics.
2 Probabilistic approach.
3 MAGGIE (Models andAlgorithm for GalaxyGroups, Interlopers andEnvironment)
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Tests on mock catalogs
Quantify environmentsTests on mock catalogs
Mock catalogs
1 Allow to link redshift space selectedgroups to real space groups.
2 Constructed from galaxy catalogoutput of semi-analytical codes appliedon Millennium-II run and HOD (halooccupation distribution).
3 Similar to SDSS survey: mask,observational uncertainties...
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Tests on mock catalogs
Quantify environmentsTests on mock catalogs
Mock catalogs
1 Allow to link redshift space selectedgroups to real space groups.
2 Constructed from galaxy catalogoutput of semi-analytical codes appliedon Millennium-II run and HOD (halooccupation distribution).
3 Similar to SDSS survey: mask,observational uncertainties...
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Tests on mock catalogs
Quantify environmentsTests on mock catalogs
Mock catalogs
1 Allow to link redshift space selectedgroups to real space groups.
2 Constructed from galaxy catalogoutput of semi-analytical codes appliedon Millennium-II run and HOD (halooccupation distribution).
3 Similar to SDSS survey: mask,observational uncertainties...
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Comparisons
Quantify environmentsComparisons
Compare with other galaxy groupalgorithms
1 Yang et al. [2007].
2 Berlind et al. [2006].
3 Domınguez Romero et al.[2012].
Applications
1 Apply algorithm on SDSS survey.
2 Observe environment effect(s) on galaxies.Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Results
Quantify environmentsResults
0.0 0.2 0.4 0.6 0.8 1.0Completeness (MAGGIE)
0.0
0.2
0.4
0.6
0.8
1.0
F(>
C)
11.00 log10M<12.00
12.00 log10M<13.00
13.00 log10M<14.00
14.00 log10M<15.00
0.0 0.2 0.4 0.6 0.8 1.0Completeness (Berlind)
0.0
0.2
0.4
0.6
0.8
1.0
F(>
C)
11.00 log10M<12.00
12.00 log10M<13.00
13.00 log10M<14.00
14.00 log10M<15.00
0.0 0.2 0.4 0.6 0.8 1.0Completeness (Mariano)
0.0
0.2
0.4
0.6
0.8
1.0
F(>
C)
11.00 log10M<12.00
12.00 log10M<13.00
13.00 log10M<14.00
14.00 log10M<15.00
0.0 0.2 0.4 0.6 0.8 1.0Completeness (Yang)
0.0
0.2
0.4
0.6
0.8
1.0
F(>
C)
11.00 log10M<12.00
12.00 log10M<13.00
13.00 log10M<14.00
14.00 log10M<15.00
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Results
Quantify environmentsResults
0.0 0.2 0.4 0.6 0.8 1.0Reliability (MAGGIE)
0.0
0.2
0.4
0.6
0.8
1.0
F(>
R)
11.00 log10M<12.00
12.00 log10M<13.00
13.00 log10M<14.00
14.00 log10M<15.00
0.0 0.2 0.4 0.6 0.8 1.0Reliability (Berlind)
0.0
0.2
0.4
0.6
0.8
1.0
F(>
R)
11.00 log10M<12.00
12.00 log10M<13.00
13.00 log10M<14.00
14.00 log10M<15.00
0.0 0.2 0.4 0.6 0.8 1.0Reliability (Mariano)
0.0
0.2
0.4
0.6
0.8
1.0
F(>
R)
11.00 log10M<12.00
12.00 log10M<13.00
13.00 log10M<14.00
14.00 log10M<15.00
0.0 0.2 0.4 0.6 0.8 1.0Reliability (Yang)
0.0
0.2
0.4
0.6
0.8
1.0
F(>
R)
11.00 log10M<12.00
12.00 log10M<13.00
13.00 log10M<14.00
14.00 log10M<15.00
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Results
Quantify environmentsResults
11.011.512.012.513.013.514.014.515.0log10Malgo
1.0
0.5
0.0
0.5
1.0
1.5
2.0
2.5
Mean
MAGGIE
Mariano
Yang
11.011.512.012.513.013.514.014.515.0log10Malgo
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
Dis
pers
ion
MAGGIE
Mariano
Yang
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Future
Quantify environmentsFuture...
Articles
1 MAGGIE : February, March2013
2 Application to SDSS.
3 Application to GAMA forhigh redshifts.
4 Max level of environmenteffects.
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Future
Quantify environmentsFuture...
Articles
1 MAGGIE : February, March2013
2 Application to SDSS.
3 Application to GAMA forhigh redshifts.
4 Max level of environmenteffects.
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Future
Quantify environmentsFuture...
Articles
1 MAGGIE : February, March2013
2 Application to SDSS.
3 Application to GAMA forhigh redshifts.
4 Max level of environmenteffects.
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Future
Quantify environmentsFuture...
Articles
1 MAGGIE : February, March2013
2 Application to SDSS.
3 Application to GAMA forhigh redshifts.
4 Max level of environmenteffects.
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Physical processes
Intra-group physical processesPhysical processes
Physical processes at work ingroups
1 Minor, major mergers.
2 Harassment.
3 Ram pressure stripping.
4 Tidal stripping.
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Model ram pressure stripping
Intra-group physical processesModel ram pressure stripping
Work to done
1 Analytical approach
2 Modeling with hydrosimulations.
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Model ram pressure stripping
Intra-group physical processesModel ram pressure stripping
Work to done
1 Analytical approach
2 Modeling with hydrosimulations.
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Lacks in semi-analytical codes (SAC)
Intra-group physical processesLacks in semi-analytical codes (SAC)
Using SAC
1 Intra-group physics is just”recipes” in SAC.
2 Incorporate our modelsextracted from SDSS data andram pressure modelisation intostate of the art SAC.
3 See if there is amelioration forSAC discrepancies withobservations.
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Lacks in semi-analytical codes (SAC)
Intra-group physical processesLacks in semi-analytical codes (SAC)
Using SAC
1 Intra-group physics is just”recipes” in SAC.
2 Incorporate our modelsextracted from SDSS data andram pressure modelisation intostate of the art SAC.
3 See if there is amelioration forSAC discrepancies withobservations.
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation
Introduction Quantify environments Intra-group physical processes
Lacks in semi-analytical codes (SAC)
Intra-group physical processesLacks in semi-analytical codes (SAC)
Using SAC
1 Intra-group physics is just”recipes” in SAC.
2 Incorporate our modelsextracted from SDSS data andram pressure modelisation intostate of the art SAC.
3 See if there is amelioration forSAC discrepancies withobservations.
Manuel DUARTE Institut d’Astrophysique de Paris (IAP)Supervisor: Gary MAMON (IAP)
Thesis presentation