The Nebulosity and Distance of the Cepheid RS Puppis

Abstract

Adopting a distance for RS Pup derived from a period-luminosity relation based on Cepheid parallaxes, it is shown that the phase-lag observations of the surrounding nebulosity by Kervella et al. are well fitted by a model of an equatorial disc at an angle of 8.1 $\pm$ 0.6 degrees to the plane of the sky. The astrophysical implications of this are briefly mentioned.

arXiv comment3 pages, 1 figure accepted for MNRAS letters

References in corpus (4)

• Hubble Space Telescope Fine Guidance Sensor Parallaxes of Galactic Cepheid Variable Stars: Period-Luminosity Relations
• A new calibration of Galactic Cepheid Period-Luminosity relations from B to K bands, and a comparison to LMC PL relations
• Cepheid Parallaxes and the Hubble Constant
• The long-period Galactic Cepheid RS Puppis - I. A geometric distance from its light echoes

Cited by in corpus (3)

• Tuning in on Cepheids: Radial velocity amplitude modulations. A source of systematic uncertainty for Baade-Wesselink distances
• Spatially extended emission around the Cepheid RS Puppis in near-infrared hydrogen lines. Adaptive optics imaging with VLT/NACO
• Comments on "The long-period Galactic Cepheid RS Puppis. I. A geometric distance from its light echoes"