Planetary Nebulae as tracers of the diffuse IG stellar background:

a population synthesis theoretical approach

Alberto Buzzoni(1) & Magda Arnaboldi(2)

(1) INAF – Oss. Astronomico di Bologna(2) INAF – Oss. Astronomico di Torino

ℓ (PAGB) / L(tot) = В x Fuel

N(PN) / L(tot) = B x τ

Fuel / L(hot-PAGB)

N(PN) / M(tot) = B x τ / (M/L)

Renzini & Buzzoni (1986)

Hot-PAGB Fuel Consumption

Bolometric correction vs. Galaxy morphology

(Buzzoni 2002)

PN Luminosity Function

N(m) = A e0.307m[1-e3(m-m*)]

(Ciardullo et al. 1989)

PN Specific Luminosity Rate (SSP)

PN lifetime

Stanghellini & Renzini (2000)

PN Specific Luminosity Ratein Template Galaxies

α2.5

SMC

M31

M32

LMC

PNe as luminosity tracers

Dorman et al. (1993)

Where to find all these data...and more

www.bo.astro.it/~eps/home.html