The central stars

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The structure of an AGB-objectmass loss determinednucleosynthesis region10 11 in size10 7 in temp.10 29 in density
The stellar mass lossThe mass loss is the process that determines it all:- the lifetime on the AGB- the luminosity reached- the gas/dust return- the chemical composition of the returned gasThe probes of this process are:- circumstellar atomic/molecular line emission- circumstellar dust continuum emission
Page 1 and 2: ALMA and AGB starsHans OlofssonOnsa
Page 3: The importance of AGB stars- They a
Page 7 and 8: AGB stars are dynamical objectsThis
Page 9 and 10: ALMA and the central starsSize (ten
Page 11 and 12: ALMA and the CSEsM(t,θ,φ,M MS ,Z,
Page 13 and 14: ALMA and the CSEsNote thatS ∗ ∝
Page 15 and 16: ALMA and the CSEsObservational spac
Page 17 and 18: ALMA and the CSEsSizes of the emitt
Page 19 and 20: Circumstellar molecules∑ = 69 cir
Page 21 and 22: Circumstellar SiO abundance estimat
Page 23 and 24: Circumstellar isotope ratiosEven a
Page 25 and 26: ALMA and the circumstellar structur
Page 27 and 28: ALMA and the circumstellar structur
Page 29 and 30: Comparisons of gas and dust distrib
Page 31 and 32: Termination of the AGB phaseIRC+102
Page 33 and 34: Post-AGB circumstellar chemistry11

The central stars

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