Results 71 to 80 of about 5,513 (166)

A Detailed Analysis of the Milky Way Warp Based on Classical Cepheids

open access: yesThe Astrophysical Journal
Classical Cepheids (CCs) are important probes for the large-scale warp structure of the Milky Way. Using Gaia Data Release 3 CCs, we establish an optimal time-dependent warp model, where the warp height increases with radius following a power law, the ...
Xiaoyue Zhou   +5 more
doaj   +1 more source

Variable Stars in M31 Stellar Clusters from the Panchromatic Hubble Andromeda Treasury

open access: yesThe Astrophysical Journal
Variable stars in stellar clusters can offer key constraints on stellar evolution and pulsation models, utilizing estimates of host cluster properties to constrain stellar physical parameters.
Richard Smith   +11 more
doaj   +1 more source

The Araucaria Project: High-precision Cepheid Astrophysics from the Analysis of Variables in Double-lined Eclipsing Binaries* [PDF]

open access: bronze, 2018
Bogumił Pilecki   +17 more
openalex   +1 more source

Cepheid Variables and Galactic Absorption [PDF]

open access: bronze, 1957
S. C. B. Gascoigne, O. J. Eggen
openalex   +1 more source

Toward a Comprehensive Grid of Cepheid Models with MESA. I. Uncertainties of the Evolutionary Tracks of Intermediate-mass Stars

open access: yesThe Astrophysical Journal Supplement Series
Helium-burning stars, in particular Cepheids, are especially difficult to model, as the choice of free parameters can greatly impact the shape of the blue loops—the part of the evolutionary track at which the instability strip is crossed.
O. Ziółkowska   +5 more
doaj   +1 more source

Tracing the Galactic Disk with the Kinematics of Gaia Cepheids

open access: yesThe Astrophysical Journal
Classical Cepheids (CCs) are excellent tracers for understanding the structure of the Milky Way disk. The latest Gaia Data Release 3 provides a large number of line-of-sight velocity information for Galactic CCs, offering an opportunity for studying the ...
Xiaoyue Zhou   +3 more
doaj   +1 more source

The Optical Gravitational Lensing Experiment. The OGLE-III Catalog of Variable Stars. XIV. Classical and Type II Cepheids in the Galactic Bulge [PDF]

open access: green, 2011
I. Soszyński   +9 more
openalex   +1 more source

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