The luminosities and distance scales of type II Cepheid and RR Lyrae variables

2008/03/04 by Michael W. Feast, Clifton D. Laney, Cliford D. Laney +3 · 6 citations
Physics and Astronomy · #Absolute magnitude #Apparent magnitude #Astronomy and Astrophysical Research #Cepheid variable #Color index #Hertzsprung–Russell diagram #RR Lyrae variable #Scientific Research and Discoveries #Stellar, planetary, and galactic studies #Type (biology) #Variable star #astro-ph

paper · pdf · doi:10.1111/j.1365-2966.2008.13181.x

29 pages, 13 figures, accepted for MNRAS

arxiv created 2008/03/04 · openalex publication_date 2008/04/23 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

Infrared and optical absolute magnitudes are derived for the type II Cepheids Pav and VY Pyx using revised Hipparcos parallaxes and for Pav, V553 Cen and SW Tau from pulsational parallaxes. Revised Hipparcos and HST parallaxes for RR Lyrae agree satisfactorily and are combined in deriving absolute magnitudes. Phase-corrected J, H and K s mags are given for 142 Hipparcos RR Lyraes based on Two-Micron All-Sky Survey observations. Pulsation and trigonometrical parallaxes for classical Cepheids are compared to establish the best value for the projection factor (p) used in pulsational analyses.

Citations

• Hubble Space TelescopeSnapshot Study of Variable Stars in Globular Clusters: The Inner Region of NGC 6441
• The RR Lyrae period-K-luminosity relation for globular clusters: an observational approach
• The MACHO Project LMC Variable Star Inventory. VII. The Discovery of RV Tauri Stars and New Type II Cepheids in the Large Magellanic Cloud
• SINFONI in the Galactic Center: Young Stars and Infrared Flares in the Central Light‐Month
• Metal abundances of RR Lyrae stars in the bar of the Large Magellanic Cloud
• Validation of the new Hipparcos reduction
• A New Cepheid Distance to the Maser‐Host Galaxy NGC 4258 and Its Implications for the Hubble Constant

Cited by

• Galactic bulge population II Cepheids in the VVV survey: period-luminosity relations and a distance to the Galactic centre
• Kinematics and multiband period–luminosity–metallicity relation of RR Lyrae stars via statistical parallax
• Mass and p-factor of the Type II Cepheid OGLE-LMC-T2CEP-098 in a Binary System∗
• Observational calibration of the projection factor of Cepheids
• Distance scale for high-luminosity stars in OB associations and in field with Gaia DR2. Spurious systematic motions
• METAL ABUNDANCES, RADIAL VELOCITIES, AND OTHER PHYSICAL CHARACTERISTICS FOR THE RR LYRAE STARS IN THEKEPLERFIELD