Published by
EDP Sciences
EDP Sciences Journals List
Subscriber Authentication Point
Home All issues Volume 442/ 1 Article
Free access
Issue A&A
Volume 442, Number 1, October IV 2005
Page(s) 159 - 163
Section Extragalactic astronomy
DOI http://dx.doi.org/10.1051/0004-6361:20053357



A&A 442, 159-163 (2005)
DOI: 10.1051/0004-6361:20053357

The standard candle aspect of carbon stars

P. Battinelli1 and S. Demers2

1  INAF, Osservatorio Astronomico di Roma, Viale del Parco Mellini 84, 00136 Roma, Italia
    e-mail: battinel@oarhp1.rm.astro.it
2  Département de Physique, Université de Montréal, CP 6128, succursale centre-ville, Montréal, Québec H3C 3J7, Canada
    e-mail: demers@astro.umontreal.ca

(Received 3 May 2005 / Accepted 3 July 2005 )

Abstract
This paper represents the second part of our effort to summarise various aspects of our homogeneous survey of carbon stars in nearby galaxies. Here we investigate the relationships between the size of the C star populations and the luminosity of the parent galaxies. We also explore the constancy of $\langle M_I\rangle$ for various metallicities and properties of the parent galaxies. We conclude that C stars are a viable standard candle for galaxies large enough to contain one hundred or more C stars. The application of narrow-band filters limits, however, the use of C stars as standard candles to no more than ~2 Mpc with currently available ground-based telescopes. Near-IR photometry from space observations can significantly push the limit of detectability of C stars thus making them an interesting alternative to the TRGB method.


Key words: stars: carbon -- stars: AGB and post-AGB -- cosmology: distance scale

SIMBAD Objects



© ESO 2005

What is OpenURL?

The OpenURL standard is a protocol for transmission of metadata describing the resource that you wish to access. An OpenURL link contains article metadata and directs it to the OpenURL server of your choice. The OpenURL server can provide access to the resource and also offer complementary services (specific search engine, export of references...). The OpenURL link can be generated by different means.
  • If your librarian has set up your subscription with an OpenURL resolver, OpenURL links appear automatically on the abstract pages.
  • You can define your own OpenURL resolver with your EDPS Account. In this case your choice will be given priority over that of your library.
  • You can use an add-on for your browser (Firefox or I.E.) to display OpenURL links on a page (see http://www.openly.com/openurlref/). You should disable this module if you wish to use the OpenURL server that you or your library have defined.