- Classical Cepheids, what else?
- Proceedings of the International Astronomical Union
- Pages (from-to)
- Document type
- Faculty of Science (FNWI)
- Anton Pannekoek Institute for Astronomy (API)
We present new and independent estimates of the distances to the Magellanic Clouds (MCs) using near-infrared (NIR) and optical-NIR period-Wesenheit (PW) relations. The slopes of the PW relations are, within the dispersion, linear over the entire period range and independent of metal content. The absolute zero points were fixed using Galactic Cepheids with distances based on the infrared surface-brightness method. The true distance modulus we found for the Large Magellanic Cloud—(m − M)0 = 18.48 ± 0.01 ± 0.10 mag—and the Small Magellanic Cloud—(m − M)0 = 18.94 ± 0.01 ± 0.10 mag—agree quite well with similar distance determinations based on robust distance indicators. We also briefly discuss the evolutionary and pulsation properties of MC Cepheids.
- go to publisher's site
- Proceedings title: Advancing the physics of cosmic distances: proceedings of the 289th Symposium of the International Astronomical
Union, held in Beijing, China, August 27-31, 2012
Publisher: Cambridge University Press
Place of publication: Cambridge
Editors: R. de Grijs