Galactic evolution models
self-enrichment in
Globular Clusters
AGB stars
Infrared luminosity
SED of high-redshift quasar
Flavia Dell’Agli
of galaxies
Marcella Di criscienzo
Observatory of Rome
Paolo Ventura
Raffaella
Schneider
Gas
from AGBs contaminated by
TDU
HBB
Gas yields from AGB stars: highly uncertain!!!
mixingTDU
Convection modelling
HBB
O
C
N
A laboratory for AGBs: the LMC
WHICH DUST FROM AGBs ?
Di Criscienzo +, 2013, MNRAS, 433, 313
CARBON DUST
TDU
SILICATES
Z
Unfortunately, the uncertainties affecting the evolution
of AGBs reflect into the dust formation process..
SILICATES
Rome
CARBON DUST
Heidelbergh
Understanding the colour-colour plane of AGBs in the LMC
Dell’Agli + 2015,
MNRAS, 447,
2992
HBB
Can we understand how convection
works in AGBs, based on photometric
arguments?
CARBON
STARS
Ventura+ 2015, MNRAS, 450, 3181
IR colours of
obscured AGBs
unaffected by
convection
modelling !!
IR spectroscopy of obscured
stars crucial to understand
convection in AGBs
C/O ≈ 0.4
C/O ≈ 0.03
Scarica

Fisica Stellare - Paolo Ventura