i ntermediate-mass evolved star winds: an observer’s perspective
DESCRIPTION
I ntermediate-mass evolved star winds: an observer’s perspective. Jacco van Loon Keele University. Kalirai et al. (2008). Kalirai et al. (2009). Kalirai et al. (2008). A GB. Javadi et al. (2011) (from Marigo et al. 2008). Super - AGB. RSG. Sloan et al. (2009). Sculptor. - PowerPoint PPT PresentationTRANSCRIPT
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Intermediate-mass evolved star winds: an observer’s perspective
Jacco van LoonKeele University
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Kalirai et al. (2008)
Kalirai et al. (2009)
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Kalirai et al. (2008)
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Javadi et al. (2011)
(from Marigo et al. 2008)
AGB
RSG
Super - AGB
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Sloan et al. (2009)
Sculptor
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Marigo et al. (2008)
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Ferrarotti & Gail (2006)
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Ferrarotti & Gail (2006)
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Ferrarotti & Gail (2006)
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Wood et al. (1992)
mass loss
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Nguyen et al. (2007)
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Croat et al. (2005)
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Vollmer et al. (2009)
200 nm
Fe
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van Loon et al. (2008)
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van Loon et al. (2005)
dust formation radius
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maser
Marshall et al. (2004)
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Wood et al. (1992)
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Marshall et al. (2004)
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Atacama Large (sub)Millimeter Array
Australian SKA Pathfinder
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CW Leo = IRC +10 216
Leão et al.
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Cat’s Eye Nebula
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Mira
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ω Centauri
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Ercole et al. (2012)
2nd generation
pristine gas
1st generation winds
M 4
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Ercole et al. (2012)
2nd generation
pristine gas
1st generation winds
NGC 2808
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McDonald & van Loon (2007)
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McDonald et al. (2009)
Origlia et al.
Reimers
dust
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McDonald et al. (2010, 2011)
iron
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Sloan et al. (2010)
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LMC
SMC
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IRAS
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Spitzer
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van Loon (2006)
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Boyer et al. (2012)
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Boyer et al. (2012)
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Boyer et al. (2012)
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Bonanos et al.
(2010)
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M 33
2 micron
Spitzer
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Javadi et al. (2011)
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Javadi et al. (2011)
(from Marigo et al. 2008)
RSG
super-AGB
AGB
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AGB super-AGB / RSGRGB
Javadi et al. (2012)
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Action points
• Wind kinematics (stellar parameters)• Dust-to-gas ratios (stellar parameters)• Mass-loss rates from not-very-dusty stars• Detailed case studies confronting models…• …and population studies confronting models• Interaction with the ISM and/or companions• Super-AGB stars
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Marshall et al. (2004)
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van Loon, Marshall & Zijlstra
(2010)
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Bonanos et al.
(2010)