Current Uncertainties in the Use of Cepheids as Distance Indicators

  title={Current Uncertainties in the Use of Cepheids as Distance Indicators},
  author={M. Feast},
  journal={arXiv: Astrophysics},
  • M. Feast
  • Published 7 January 2003
  • Physics
  • arXiv: Astrophysics
The methods of calibrating the luminosities of galactic Cepheids and determining Cepheid reddenings are considered in some detail. Together with work on NGC4258 this suggests that the calibration presented is valid to about 0.1 mag (s.e.) at least for Cepheids with near solar abundances. Metallicity effects are considered, partly through the use of non-Cepheid moduli of the LMC. To reduce the uncertainty substantially below ∼ 0.1 mag will require extensive work on metallicity effects. Non… 

The effect of metallicity on the Cepheid period-luminosity relation

We present preliminary results of an observational campaign devoted to establishing the influence of chemical composition on the Cepheid Period-Luminosity relation. The data are in good agreement

Period–luminosity relations for Galactic Cepheid variables with independent distance measurements

In this paper, we derive the period-luminosity (PL) relation for Galactic Cepheids with recent independent distance measurements from open cluster, Barnes-Evans surface brightness, interferometry and


In this work, we updated the catalog of Galactic Cepheids with 24 μm photometry by cross-matching the positions of known Galactic Cepheids to the recently released MIPSGAL point source catalog. We

The Distances to Open Clusters from Main-Sequence Fitting. IV. Galactic Cepheids, the LMC, and the Local Distance Scale

We derive the basic properties of seven Galactic open clusters containing Cepheids and construct their period-luminosity (P-L) relations. For our cluster main-sequence fitting we extend previous

Carbon-rich Mira variables: kinematics and absolute magnitudes

The kinematics of Galactic C-Miras are discussed on the basis of the bolometric magnitudes and radial velocities of Papers I and II of this series. Differential Galactic rotation is used to derive a

The Araucaria Project: An Improved Distance to the Sculptor Spiral Galaxy NGC 300 from Its Cepheid Variables

In a previous paper, we reported on the discovery of more than a hundred new Cepheid variables in the Sculptor Group spiral galaxy NGC 300 from wide-field images taken in the B and V photometric

The Araucaria Project: Near-Infrared Photometry of Cepheid Variables in the Sculptor Galaxy NGC 55

We have obtained deep images in the near-infrared J and K filters of four fields in the Sculptor group spiral galaxy NGC 55 with the ESO VLT and ISAAC camera. For 40 long-period Cepheid variables in


We have obtained deep infrared J- and K-band observations of nine 4.9 × 4.9 arcmin fields in the Small Magellanic Cloud (SMC) with the ESO New Technology Telescope equipped with the SOFI infrared

The linearity of the Wesenheit function for the Large Magellanic Cloud Cepheids

There is strong evidence that the period-luminosity (PL) relation for the Large Magellanic Cloud (LMC) Cepheids shows a break at a period around 10 d. Because the LMC PL relation is extensively used

UBVI CCD Photometry of NGC 7790

UBVI CCD photometry of the intermediate age open cluster NGC 7790 has been obtained using AZT-22 1.5 m telescope (f/7.74) at the Maidanak Astronomical Observatory in Uzbekistan. NGC 7790 contains



Observational Tests of Cosmological Inflation

I. Inflation Theory.- Fundamental Arguments for Inflation.- Predictions of Inflation.- Classicality of Density Perturbations in the Early Universe.- The Influence of Non-Linear Density Fluctuations

Spectra of Long-Period Variable Stars

OUR knowledge of long-period stellar variability is still so fragmentary that much of the available information is widely scattered throughout various periodicals, and many of the proposed hypotheses

Mass-losing pulsating stars and their circumstellar matter : observations and theory

I Recent Results of Massive Photometry.- The Sequence of Mass-Losing AGB Stars in the Magellanic Clouds.- Three Aspects of Red Giant Studies in the Magellanic Clouds.- Luminosities of AGB Variables.-

In, ASP Conf

  • Ser., 135, A Half-Century of Stellar Pulsation Interpretations, ed. by P. A. Bradley, J. A. Guzik (San Francisco, ASP), p180
  • 1998

In, ASP Conf

  • Ser. 167, Harmonizing the Cosmic Distance Scale in the Post-Hipparcos Era, ed. by D Egret, A. Heck (San Francisco) p.113
  • 1999

The Galaxies of the Local Group

Preface 1. Introduction 2. Local group membership 3. The Andromeda galaxy (M31) 4. The Milky Way system 5. The Triangulum galaxy (M33) 6. The Large Magellanic Cloud 7. The Small Magellanic Cloud 8.

The Magellanic Clouds

The Magellanic Clouds continue to attract much interest. New data from observations at all wavelengths appear frequently and contribute valuable information regarding the Clouds as galaxies as well