Hostname: page-component-586b7cd67f-r5fsc Total loading time: 0 Render date: 2024-11-22T22:24:31.703Z Has data issue: false hasContentIssue false

The luminosity-specific Planetary Nebulae density in Local Group galaxies

Published online by Cambridge University Press:  15 December 2006

R.L.M. Corradi
Affiliation:
Isaac Newton Group of Telescopes, Ap. de Correos 321, 38700 Sta. Cruz de la Palma, Spain email: [email protected] Instituto de Astrofísica de Canarias, 38200 La Laguna, Tenerife, Spain
A. Buzzoni
Affiliation:
INAF Osservatorio Astronomico di Bologna, Via Ranzani 1, 40127 Bologna, Italy email: [email protected]
M. Arnaboldi
Affiliation:
ESO Karl-Schwarzschild-Str. 2, 85748 Garching bei München, Germany email: [email protected] INAF Osservatorio Astronomico di Torino, Via Osservatorio 20, 10025 Pino Torinese (To), Italy
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The value of the $\alpha$ ratio, the number of PNe per unit bolometric luminosity in a galaxy, is computed using stellar population synthesis models covering the whole range of Hubble types of galaxies.

Model predictions are compared with the PNe counts in the Local Group, which indicate a fairly constant value of $\alpha$ – between 1 and 6 PNe per 10$^7$ solar luminosities – along the Hubble sequence.

Type
Contributed Papers
Copyright
© 2006 International Astronomical Union