Results 1 to 10 of about 2,384 (215)

Systematics in the Cepheid and TRGB Distance Scales: Metallicity Sensitivity of the Wesenheit Leavitt Law

open access: yesThe Astrophysical Journal
Using an updated and significantly augmented sample of Cepheid and tip of the red giant branch (TRGB) distances to 28 nearby spiral and irregular galaxies, covering a wide range of metallicities, we have searched for evidence of a correlation of the zero-
Barry F. Madore, Wendy L. Freedman
doaj   +3 more sources

THE PULSATION MODE AND DISTANCE OF THE CEPHEID FF AQUILAE [PDF]

open access: yesAstrophysical Journal Letters, 2013
Publisher's version/PDFThe determination of pulsation mode and distance for field Cepheids is a complicated problem best resolved by a luminosity estimate.
D G Turner, V V Kovtyukh, R E Luck
exaly   +5 more sources

The Cepheid Distance to the Seyfert 1 Galaxy NGC 4151 [PDF]

open access: yesAstrophysical Journal, 2020
We derive a distance of 15.8 ± 0.4 Mpc to the archetypal Seyfert 1 galaxy NGC 4151 based on the near-infrared Cepheid period–luminosity relation and new Hubble Space Telescope multiband imaging.
W Yuan   +2 more
exaly   +4 more sources

Toward a renewed Galactic Cepheid distance scale from Gaia and optical interferometry [PDF]

open access: yesEPJ Web of Conferences, 2017
Through an innovative combination of multiple observing techniques and modeling, we are assembling a comprehensive understanding of the pulsation and close environment of Cepheids.
Kervella Pierre   +11 more
doaj   +3 more sources

A 1.3% Distance to M33 from Hubble Space Telescope Cepheid Photometry

open access: yesThe Astrophysical Journal, 2023
We present a low-dispersion period–luminosity relation (PL) based on 154 Cepheids in Messier 33 (M33) with Hubble Space Telescope (HST) photometry from the PHATTER survey.
Louise Breuval   +9 more
doaj   +2 more sources

The Cepheid Distance Scale: Recent Progress in Fundamental Techniques [PDF]

open access: yes, 2009
This review examines progress on the Pop I, fundamental-mode Cepheid distance scale with emphasis on recent developments in geometric and quasi-geometric techniques for Cepheid distance determination. Specifically I examine the surface brightness method,
Barnes Thomas G
exaly   +2 more sources

A Geometrical 1% Distance to the Short-period Binary Cepheid V1334 Cygni

open access: yesAstrophysical Journal, 2018
Cepheid stars play a considerable role as extragalactic distances indicators, thanks to the simple empirical relation between their pulsation period and their luminosity. They overlap with that of secondary distance indicators, such as Type Ia supernovae,
A Gallenne   +2 more
exaly   +1 more source

Converging on the Cepheid Metallicity Dependence: Implications of Nonstandard Gaia Parallax Recalibration on Distance Measures

open access: yesThe Astrophysical Journal
By comparing Cepheid brightnesses with geometric distance measures including Gaia EDR3 parallaxes, most recent analyses conclude metal-rich Cepheids are brighter, quantified as γ ∼ −0.2 mag dex ^−1 .
Louise Breuval   +22 more
doaj   +3 more sources

Cepheid Period‐Radius and Period‐Luminosity Relations and the Distance to the Large Magellanic Cloud

open access: yesAstrophysical Journal, 1998
We have used the infrared Barnes-Evans surface brightness technique to derive the radii and distances of 34 Galactic Cepheid variables. Radius and distance results obtained from both versions of the technique are in excellent agreement.
Wolfgang P Gieren, Pascal Fouque
exaly   +1 more source

A distance to the galaxy NGC4258 from observations of Cepheid variable stars

open access: yesNature, 1999
Cepheid variable stars pulsate in a way that is correlated with their intrinsic luminosity, making them useful as 'standard candles' for determining distances to galaxies; the potential systematic uncertainties in the resulting distances have been ...
Jeffrey A Newman   +2 more
exaly   +1 more source

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