Results 11 to 20 of about 1,063,077 (278)

The ZZ Ceti instability strip revisited [PDF]

open access: bronzeOpen Astronomy, 2000
D. Koester, N. F. Allard
openalex   +2 more sources

Non-variable stars inside the ZZ Ceti instability strip [PDF]

open access: hybridOpen Astronomy, 1995
S. O. Kepler   +4 more
openalex   +2 more sources

Toward an Empirical Determination of the ZZ Ceti Instability Strip [PDF]

open access: bronze, 2005
We present atmospheric parameters for a large sample of DA white dwarfs that are known to be photometrically constant. For each star, we determine the effective temperature and surface gravity by comparing high signal-to-noise ratio optical spectra to ...
A. Gianninas, P. Bergeron, G. Fontaine
openalex   +3 more sources

New nonadiabatic pulsation computations on full PG 1159 evolutionary models: the theoretical GW Virginis instability strip revisited [PDF]

open access: bronze, 2006
Aims. We reexamine the theoretical instability domain of pulsating PG 1159 stars (GW Vir variables). Methods. We performed an extensive g -mode stability analysis on PG 1159 evolutionary models with stellar masses ranging from 0.530 to $0.741~M_{\odot}$,
A. H. Córsico   +2 more
openalex   +3 more sources

Softening and instability evolution of strip coal pillar under water immersion in goaf [PDF]

open access: yesSci Rep
The softening and instability of the coal pillar caused by water immersion is the primary factor contributing to water inrush in the goaf of the same layer.
Wang X   +9 more
europepmc   +2 more sources

Empirical instability strip for classical Cepheids I. The Large Magellanic Cloud galaxy [PDF]

open access: yesAstronomy & Astrophysics, 2023
The instability strip (IS) of classical Cepheids has been extensively studied theoretically. Comparing the theoretical IS edges with those obtained empirically, using the most recent Cepheids catalogs available, can provide us with insights into the ...
F. Espinoza-Arancibia   +4 more
semanticscholar   +1 more source

Spectroscopic Studies of DB White Dwarfs: The Instability Strip of the Pulsating DB (V777 Herculis) Stars [PDF]

open access: bronze, 1999
A.L. Beauchamp   +6 more
openalex   +2 more sources

Similar Simulation Test on Deformation Characteristics of Overlying Rock Developed by Instability of Strip Coal Pillar

open access: yesShock and Vibration, 2022
In order to protect surface buildings and maximize the recovery of coal resources, there are a large number of strip coal pillars and unfilled goafs left in strip mining areas in China.
Yong Liu   +3 more
doaj   +1 more source

Gaia-derived luminosities ofKeplerA/F stars and the pulsator fraction across the δ Scuti instability strip [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2019
We study the fraction of stars in and around the {\delta} Scuti instability strip that are pulsating, using {\em Gaia} DR2 parallaxes to derive precise luminosities. We classify a sample of over 15,000 {\em Kepler} A and F stars into {\delta} Sct and non-
S. Murphy   +3 more
semanticscholar   +1 more source

Erratum: Candidates for non-pulsating stars located in the Cepheid instability strip in the Large Magellanic Cloud based on Strömgren photometry [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2019
We present candidates for non-pulsating stars lying in the classical Cepheid instability strip based on the Optical Gravitational Lensing Experiment (OGLE) photometric maps combined with Strömgren photometry obtained with the 4.1-m Southern ...
W. Narloch   +16 more
semanticscholar   +1 more source

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