Classical Cepheids provide the foundation for the empirical extragalactic distance ladder. Milky Way Cepheids are the only stars in this class accessible to trigonometric parallax measurements. However, the parallaxes of Cepheids from the second Gaia data release (GDR2) are affected by systematics because of the absence of chromaticity correction, and occasionally by saturation. As a proxy for the parallaxes of 36 Galactic Cepheids, we adopt either the GDR2 parallaxes of their spatially resolved companions or the GDR2 parallax of their host open cluster. This novel approach allows us to bypass the systematics on the GDR2 Cepheids parallaxes that is induced by saturation and variability. We adopt a GDR2 parallax zero-point (ZP) of -0.046 mas...
Context. Parallaxes for 331 classical Cepheids, 31 Type II Cepheids, and 364 RR Lyrae stars in commo...
International audienceContext. Parallaxes for 331 classical Cepheids, 31 Type II Cepheids, and 364 R...
Cepheids are pulsating variable stars which play a key role as primary distance indicators thanks to...
International audienceAims. Classical Cepheids provide the foundation for the empirical extragalacti...
Aims. Classical Cepheids provide the foundation for the empirical extragalactic distance ladder. Mil...
International audienceClassical Cepheids (CCs) are at the heart of the empirical extragalactic dista...
Cepheids are pulsating variable stars which play a key role as primary distance indicators thanks to...
Cepheid stars play a considerable role as astronomical distances indicators thanks to the empirical ...
We present Hubble Space Telescope (HST) photometry of 17 Cepheids in open clusters and their cluster...
We have conducted a search for open clusters in the vicinity of classical Galactic Cepheids based on...
Context. Classical Cepheids are the most important primary indicators for the extragalactic distance...
The Galactic calibration of the period-luminosity (PL) relation for classical Cepheids is examined u...
Aims. We present a comparison of Gaia Data Release 1 (DR1) parallaxes with photometric parallaxes fo...
Context. Parallaxes for 331 classical Cepheids, 31 Type II Cepheids, and 364 RR Lyrae stars in commo...
International audienceContext. Parallaxes for 331 classical Cepheids, 31 Type II Cepheids, and 364 R...
Cepheids are pulsating variable stars which play a key role as primary distance indicators thanks to...
International audienceAims. Classical Cepheids provide the foundation for the empirical extragalacti...
Aims. Classical Cepheids provide the foundation for the empirical extragalactic distance ladder. Mil...
International audienceClassical Cepheids (CCs) are at the heart of the empirical extragalactic dista...
Cepheids are pulsating variable stars which play a key role as primary distance indicators thanks to...
Cepheid stars play a considerable role as astronomical distances indicators thanks to the empirical ...
We present Hubble Space Telescope (HST) photometry of 17 Cepheids in open clusters and their cluster...
We have conducted a search for open clusters in the vicinity of classical Galactic Cepheids based on...
Context. Classical Cepheids are the most important primary indicators for the extragalactic distance...
The Galactic calibration of the period-luminosity (PL) relation for classical Cepheids is examined u...
Aims. We present a comparison of Gaia Data Release 1 (DR1) parallaxes with photometric parallaxes fo...
Context. Parallaxes for 331 classical Cepheids, 31 Type II Cepheids, and 364 RR Lyrae stars in commo...
International audienceContext. Parallaxes for 331 classical Cepheids, 31 Type II Cepheids, and 364 R...
Cepheids are pulsating variable stars which play a key role as primary distance indicators thanks to...