Results 11 to 20 of about 1,730 (181)
The Cepheid-Based Distance Scale
Open Astronomy, 1999 Di Benedetto G. P., Lattanzi M. G.
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Cepheid Radii and Distances [PDF]
International Astronomical Union Colloquium, 1995 Laney & Stobie (1995) (LS95) have determined Baade-Wesselink radii for 49 galactic Cepheids using BVRI and JHK photometry. Four of the possible magnitude-colour combinations were studied in detail — namely, (V,B–V), (V,V–Ic), (K,V–K) and (K,J–K). In that paper and in the present note we have used the maximum likelihood method of Balona (1977) as ...
C. D. Laney, R. S. Stobie
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Metallicity effects on the Cepheid distance scale [PDF]
Symposium - International Astronomical Union, 1991 We are undertaking empirical tests for the effects of metallicity on the zero-point of the Period-Luminosity relations for Cepheids in M31 and in the Small Magellanic Cloud (SMC), as compared to the Large Magellanic Cloud (LMC). For M31 we have used BVRI data on comparable sets of Cepheids in three radially separated, and chemically different, fields ...
Wendy L. Freedman, Barry F. Madore
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THE DISTANCE MEASUREMENT OF NGC 1313 WITH CEPHEIDS [PDF]
The Astrophysical Journal, 2015 We present the detection of Cepheids in the barred spiral galaxy NGC 1313, using the Wide Field and Planetary Camera 2 on the Hubble Space Telescpoe. Twenty B (F450W) and V (F555W) epochs of observations spanning over three weeks were obtained, on which the profile-fitting photometry of all stars in the monitored field was performed using the package ...
Gao, Qing +3 more
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The Effect of Metallicity on Cepheid‐based Distances [PDF]
The Astrophysical Journal, 2004 Accepted for publication in the Astrophysical Journal. 56 pages, 16 figures (jpg).
Sakai, Shoko +3 more
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Distances and Radii of Classical Cepheids [PDF]
International Astronomical Union Colloquium, 1985 We have used new BVRI photometry and radial velocities of a selection of bright classical Cepheids to determine their distances and radii through the surface brightness method. The improved photometry permitted, through the visual surface brightness relation, high-quality angular-diameter values for each Cepheid throughout its pulsation.
T. G. Barnes, T. J. Moffett
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The nebulosity and distance of the Cepheid RS Puppis [PDF]
Monthly Notices of the Royal Astronomical Society: Letters, 2008 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 to the plane of the sky.
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Cepheid Distances from Interferometry [PDF]
, 2007 Long baseline interferometry is now able to resolve the pulsational changes of the angular diameters of a significant number of Cepheids in the solar neighborhood. This allows us to apply a new version of the Baade-Wesselink method to measure their distances, for which we do not need to estimate the star’s temperature.
Kervella, P. +5 more
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Cepheid Distance to the Virgo Cluster [PDF]
International Astronomical Union Colloquium, 2000 AbstractA reanalysis of the HST data on Cepheids in the Virgo cluster spiral M100 is presented, based on our study of the Galactic Cepheids. A distance modulus of 31.49 mag is derived, which is higher than the HST Key Project value of 31.04 mag obtained from the same data earlier (Ferrarese et al. 1996). The increase in the distance is caused by nearly
Anwesh Mazumdar, D. Narasimha
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Calibration of the Cepheid Distance Scale [PDF]
International Astronomical Union Colloquium, 1993 AbstractThe absolute calibration of the Cepheid period-luminosity (PL) relation with galactic Cepheids is discussed. Various methods, most importantly the cluster ZAMS-fitting scale and the Baade-Wesselink scale are found to yield PL zero points which agree within ∼ ± 0.1 mag. The present Cepheid calibration sets the Large Magellanic Cloud at μ0 (LMC) =
Wolfgang P. Gieren, Pascal Fouqué
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