Results 101 to 110 of about 164 (138)

On the Distance of the Sun from the Galactic Plane. [PDF]

open access: yesProc Natl Acad Sci U S A, 1927
Gerasimovic BP, Luyten WJ.
europepmc   +1 more source

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

Nature, 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 estimated to be only 8-10%.
Maoz, Eyal   +7 more
openaire   +3 more sources

Spectra of Population II Cepheid Variable Stars

1958
The physical properties of the population II cepheids have been studied using the following material: photoelectric observations of Arp, low dispersion spectra of Joy, high dispersion spectra taken by Sanford and Abt, and numerous moderate dispersion spectra obtained by the author. Radial velocity curves for ten cepheids are shown.
openaire   +1 more source

A New Approach to the Determination of the Intrintic Colours of the Cepheid Variable Stars

International Astronomical Union Colloquium, 1979
SummaryIntrinsic colours have been determined for 247 of the 275 variable stars listed in the “Catalogue of the Light and Colour Curves of Cepheids in the UBV System” by N. Nikolov. Algorithms for computing intrinsic colour are derived from 59 standard stars.
Gerald E. Kron, Franklin E. Roach
openaire   +1 more source

Domain Adaptation under Data Misalignment: An Application to Cepheid Variable Star Classification

2014 22nd International Conference on Pattern Recognition, 2014
We address a particular scenario within the area of domain adaptation, where a predictive model obtained from a source domain can be applied directly to a target domain. Both source and target domains share the same input or feature space, but we do not impose any restrictions on the marginal and class posterior distributions (both distributions can ...
Ricardo Vilalta   +2 more
openaire   +1 more source

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