Toward a renewed Galactic Cepheid distance scale from Gaia and optical interferometry [PDF]
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 +2 more sources
A comprehensive study of Cepheid variables in the Andromeda galaxy. Period distribution, blending and distance determination [PDF]
Extragalactic Cepheids are the basic rungs of the cosmic distance scale. They are excellent standard candles, although their luminosities and corresponding distance estimates can be affected by the particular properties of the host galaxy. Therefore, the
Alcock +43 more
core +3 more sources
How rotation affects masses and ages of classical Cepheids
Classical Cepheid variable stars are both sensitive astrophysical laboratories and accurate cosmic distance tracers. We have recently investigated how the evolutionary effects of rotation impact the properties of these important stars and here provide an
Anderson Richard I. +4 more
doaj +2 more sources
Hubble Space Telescope Fine Guidance Sensor Parallaxes of Galactic Cepheid Variable Stars: Period-Luminosity Relations [PDF]
(abridged) We present new absolute trigonometric parallaxes and relative proper motions for nine Galactic Cepheid variable stars: l Car, zeta Gem, beta Dor, W Sgr, X Sgr, Y Sgr, FF Aql, T Vul, and RT Aur.
Barnes, Thomas G. +8 more
core +4 more sources
Cepheid variables in the LMC cluster NGC 1866. I. New BVRI CCD photometry [PDF]
We report BV(RI)c CCD photometric data for a group of seven Cepheid variables in the young, rich cluster NGC 1866 in the Large Magellanic Cloud. The photometry was obtained as part of a program to determine accurate distances to these Cepheids by means ...
Bell R. A. +18 more
core +3 more sources
An overtone Cepheid variable in an LMC eclipsing binary [PDF]
D. Lepischak, D. L. Welch
openalex +2 more sources
A three-dimensional map of the Milky Way using classical Cepheid variable stars [PDF]
Cepheids help to map the Galaxy Cepheid variable stars pulsate, which allows their distances to be determined from the periodic variations in brightness. Skowron et al. constructed a catalog of thousands of Cepheids covering a large fraction of the Milky
D. Skowron +11 more
semanticscholar +1 more source
A long-period Cepheid variable in the starburst cluster VdBH222 [PDF]
Context. Galactic starburst clusters play a twin role in astrophysics, serving as laboratories for the study of stellar physics and also delineating the structure and recent star formation history of the Milky Way. Aims.
J. Clark +7 more
semanticscholar +1 more source
Metallicities of Classical Cepheids in the Inner Galactic Disk
Metallicity gradients refer to the sloped radial profiles of the metallicities of gas and stars and are commonly seen in disk galaxies. A well-defined metallicity gradient of the Galactic disk is observed particularly well with classical Cepheids, which ...
Noriyuki Matsunaga +16 more
doaj +1 more source
M33 Cepheids from CFHT/MegaCam Survey
In this paper we analyze Sloan g, r, i archival imaging data of M33 taken by Hartman et al. using MegaCam at the Canada–France–Hawaii Telescope. To determine the distance to the M33 galaxy, we performed several analytical steps to identify its Cepheid ...
Samuel Adair, Chien-Hsiu Lee
doaj +1 more source

