bodewits

Information about bodewits

Published on January 16, 2008

Author: Penelope

Source: authorstream.com

Content

Slide1:  FINDING FINGERPRINTS Probing the interaction between comets and the solar wind Dennis Bodewits Xander Tielens, Ronnie Hoekstra KVI Atomic Physics Zernikelaan 25, 9747 AA Groningen Cometary X-Ray emission:  Cometary X-Ray emission Features: Bright in 0.2-1000eV Line emission Variable Common property of (nearby) comets Charge Exchange Interaction between comet and wind:  Interaction between comet and wind Solar Wind:  Solar Wind Northern Light!! Per cm3: 9 protons 10 elektronen 0.5 He2+ few Oq+,Cq+,Nq+,… Windtypes Variability! Fingerprints of Charge Exchange:  Fingerprints of Charge Exchange Quasi resonant Excited state Molecules? Multiple EC? Photon emission spectroscopy:  Photon emission spectroscopy Solar wind helium - experimental results:  Solar wind helium - experimental results H2O H2 CO He He+ Electron capture strongly depends on collision partner and velocity Interaction model:  Sun Interaction model atoms Gas Production Q, Heliocentric Distance, Scale Lengths Comet atmosphere Charge state dist. Image & spectrum Charge state distribution:  Charge state distribution Big comet Cross section Density distribution O8+ O7+ O6+ O8+ O7+ What collisions? Depends on properties of wind AND comet Small comet O6+ Model results I: X-Ray morphology:  1027 1029 1028 1030 Model results I: X-Ray morphology small big Model results II – synthetic spectra:  Model results II – synthetic spectra Combination of composition + comet + cross sections Aq+ + molecules?? Multiple electron capture?? Experiments!!! Example: CXO observations Comet Encke:  Example: CXO observations Comet Encke Collisionally thin coma close to the sun fast wind O8+ C6+ O7+ C5+ Summary:  Summary Spectra and morphology in x-ray and FUV depend on solar wind AND comet characteristics Charge exchange emission strongly depends on collision partner and velocity Provides excellent diagnostic tool, but…. need of laboratory data! need of spatially resolved high res. spectra! Slide14:  Thank you! http://www.kvi.nl/~atf

Related presentations


Other presentations created by Penelope

7E Acids and Alkalis
22. 01. 2008
0 views

7E Acids and Alkalis

India and Power
21. 01. 2008
0 views

India and Power

522 bioremediation
19. 01. 2008
0 views

522 bioremediation

MOLLUSKS 4 13 07
08. 01. 2008
0 views

MOLLUSKS 4 13 07

paper liners that work
10. 01. 2008
0 views

paper liners that work

Nazroo
11. 01. 2008
0 views

Nazroo

partnership
12. 01. 2008
0 views

partnership

N95 Respirator Training
13. 01. 2008
0 views

N95 Respirator Training

CISSIP Bahamas
15. 01. 2008
0 views

CISSIP Bahamas

schiffman08
17. 01. 2008
0 views

schiffman08

4 Unit 11
17. 01. 2008
0 views

4 Unit 11

06sw2aslides
18. 01. 2008
0 views

06sw2aslides

rastogi slides
23. 01. 2008
0 views

rastogi slides

HND203 Mail Routing Mastery
04. 02. 2008
0 views

HND203 Mail Routing Mastery

futureofgadgets2006
04. 02. 2008
0 views

futureofgadgets2006

TheCeramicsIndustry
11. 02. 2008
0 views

TheCeramicsIndustry

ifpte2002plenary
09. 01. 2008
0 views

ifpte2002plenary

ChesapeakeBayProject Web
15. 01. 2008
0 views

ChesapeakeBayProject Web

Doha Cotton feb05
25. 01. 2008
0 views

Doha Cotton feb05

turningtorso
25. 01. 2008
0 views

turningtorso

federal estate gift tax
28. 01. 2008
0 views

federal estate gift tax

outline5
14. 02. 2008
0 views

outline5

beowulf
18. 02. 2008
0 views

beowulf

consumerbehavior
28. 01. 2008
0 views

consumerbehavior

Compton
29. 02. 2008
0 views

Compton

notes week12 priv tech
31. 01. 2008
0 views

notes week12 priv tech

Surrealist ethnography
03. 03. 2008
0 views

Surrealist ethnography

gapped summary 2005
08. 03. 2008
0 views

gapped summary 2005

WEDDING
05. 02. 2008
0 views

WEDDING

fy2006 04 tourism ecom impact
14. 03. 2008
0 views

fy2006 04 tourism ecom impact

Hazan Netart Seoul 2004
19. 03. 2008
0 views

Hazan Netart Seoul 2004

Benchmarking for ITE 06
21. 03. 2008
0 views

Benchmarking for ITE 06

week 8 logistics processes 2006
24. 03. 2008
0 views

week 8 logistics processes 2006

TBC Overview
07. 02. 2008
0 views

TBC Overview

Travel Seminar 02072008
07. 04. 2008
0 views

Travel Seminar 02072008

Business An$wers Only
08. 04. 2008
0 views

Business An$wers Only

ziegler
24. 01. 2008
0 views

ziegler

gc06 7
15. 04. 2008
0 views

gc06 7

pptgame
12. 02. 2008
0 views

pptgame

Passage b
17. 04. 2008
0 views

Passage b

Terry Young FEI OC China 5 9 07
22. 04. 2008
0 views

Terry Young FEI OC China 5 9 07

Altec Group Internet
24. 04. 2008
0 views

Altec Group Internet

Dr Sachin Chaturvedi
07. 05. 2008
0 views

Dr Sachin Chaturvedi

PD2
07. 02. 2008
0 views

PD2

temporal reasoning CAA 04 12
02. 05. 2008
0 views

temporal reasoning CAA 04 12

SECCHI STEREOswg04v6
22. 01. 2008
0 views

SECCHI STEREOswg04v6

TheCaseforPro LifeDems
10. 01. 2008
0 views

TheCaseforPro LifeDems

UTIL WaterConservationTips 03 06
03. 03. 2008
0 views

UTIL WaterConservationTips 03 06

ch10 1
13. 01. 2008
0 views

ch10 1

GetCleanPresentation
22. 01. 2008
0 views

GetCleanPresentation

COTAR Nov02 ReportAPSEPG2002
23. 01. 2008
0 views

COTAR Nov02 ReportAPSEPG2002

CurrentTrendsGlassRe cycling
09. 01. 2008
0 views

CurrentTrendsGlassRe cycling

BIC
17. 01. 2008
0 views

BIC

celle
07. 03. 2008
0 views

celle