2004/01/31 by Chow-Choong Ngeow, Chow‐Choong Ngeow, Shashi Kanbur +1 · 1 citation
Physics and Astronomy · #Astronomy and Astrophysical Research #Astrophysics and Star Formation Studies #Stellar, planetary, and galactic studies #astro-ph
paper · pdf · doi:10.1111/j.1365-2966.2004.07595.x
published as Mon.Not.Roy.Astron.Soc. 349 (2004) 1130 · 7 pages, 4 tables, 1 figure. MNRAS in-press, correct typesetting error in Table 3
arxiv created 2004/03/24 · openalex publication_date 2004/04/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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 Hubble Space Telescope astrometry techniques. Our PL relation confirms the results from recent works, which showed that the Galactic Cepheids follow a different PL relation to their Large Magellanic Cloud (LMC) counterparts. Our results also show that the slope of the Galactic PL relation is inconsistent with the LMC slope with more than 95 per cent confidence level. We apply this Galactic PL relation to find the distance to NGC 4258. Our result of μo= 29.49 ± 0.06 mag (random error) agrees at the ∼1.4σ level with the geometrical distance of μgeo= 29.28 ± 0.15 mag from water maser measurements.